RE: [Asterisk-Users] Should I choose DSL @ 1.5 or a full T1?
-Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Huddleston, Robert Sent: Tuesday, June 14, 2005 3:49 PM To: 'Asterisk Users Mailing List - Non-Commercial Discussion' Subject: RE: [Asterisk-Users] Should I choose DSL @ 1.5 or a full T1? Anyone paying over $450 for a T1 is being ripped off... If you are in VA,MD,DC,PA,DE,NJ you can get an integrated VoIP T1 for $300 - $400 and a flat internet t1 for about $400. The integrated VoIP T1 is great because it's handed off as an ethernet - no need for a csu/dsu Ummm...no. Maybe if you are in or very near a city you can, but not everywhere. You find me a reliable Teir 1 ISP T1 in New Hope, PA for $300 to $400 and I'll give you the amount I save over the next quarter. NPA-NXX is 215-862. Good luck. voiceverified. | Daryl G. Jurbala -- | Chief Technology Officer | 215.862.1160 x235 (Office) It had to be you! | 215.862.9880 (FAX) ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [Asterisk-Users] Should I choose DSL @ 1.5 or a full T1?
On Jun 17, 2005, at 7:56 AM, Daryl G. Jurbala wrote: You find me a reliable Teir 1 ISP T1 in New Hope, PA for $300 to $400 and I'll give you the amount I save over the next quarter. NPA-NXX is 215-862. Good luck. That sounds almost like Xeno's Paradox there... if you gave away the savings you still be paying the same amount thus half the savings would be...? Sorry, just had to inject some Friday afternoon humor onto the list. Seriously though, I was never able to get a T1 for that price anywhere myself until I moved to Orange County, CA. -Rob. -- Robert Goodyear | Managing Partner | Brand Up LLC 901 Calle Amanecer | Suite 150 | San Clemente, CA 92673 Tel: 949/468.0370 x501 | Fax: 949/468.0371 | Cell/SMS: 949/981.7301 http://brand-up.com | [EMAIL PROTECTED]___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
RE: [Asterisk-Users] Should I choose DSL @ 1.5 or a full T1?
You find me a reliable Teir 1 ISP T1 in New Hope, PA for $300 to $400 and I'll give you the amount I save over the next quarter. NPA-NXX is 215-862. Good luck. Ive got a Full T1 from a rather large Mid-Atlantic CLEC for $291. Ive got about dozen of them from DC to Trenton, NJ. -Darren ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [Asterisk-Users] Should I choose DSL @ 1.5 or a full T1?
On Tuesday 14 June 2005 18:47, Barton Fisher wrote: So if I understand correctly, a full T1 should be 1.5Mbps full duplex. And it should support 22 SIP Users at once - Right? Depends on the codec and VOIP technology used and what else is going out over the line.With the right technology and conditions, and with the right codec, you could easily fit over 130 conversations in that same pipe. But to keep the discussion short: yes. 22 is perhaps stretching it with ulaw but 18-19 is about the right answer. -A. ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
RE: [Asterisk-Users] Should I choose DSL @ 1.5 or a full T1?
You guys have me second guessing my training and experience in this area, so; 1. If I am wrong I apologize to the group. 2. I have been trying for a few minutes to find confirmation either way. From what I know about the modulation techniques used by DSL (DMT, CAP, QAM) it is impossible for the transceiver in the device to transmit and receive at the same time (unless there is discreet channels for each path and a very good transceiver). Does anyone have any definitive technical resources confirming that any form of xDSL technology can transmit and receive at precisely the same time (not interleaved). I'd have to guess that your past training and experience might have been based on some specific product where your thoughts might be correct. Or, someone may have been trying to make a point with some specific product or chip set that essential suggested at any specific microsecond in time, the chip set can either send or receive (half duplex), and there are some that operate that way. But, the majority of current day quality dsl products, when viewed over a longer period of time then a microsecond, operate in full duplex mode. Some exceptions to that are specific products from Net-2-Net that are oriented around sdsl, etc. If you truly attempt to transmit and receive data simultanously through the majority of current day products, you can prove to yourself which ones operate in full duplex vs half. Can anyone provide a more logical explanation of why the outbound latency on every DSL modem tested increases with inbound traffic? Even at rates well below the maximum data rate, Not the case on a T1. My explanation is that the additional latency is due to packet scheduling and queuing mechanisms required by the technology. Someone else already discussed the effects of TCP acknowledgements impacting full duplex or throughput. The same is roughtly true with many udp sessions (such as sip and iax since asterisk doesn't send a packet until after its received a packet). FWIW, our local telco is now providing 3.0 meg down and 768 up on the same cable pair that was previously used for 1.5 down and 768 up. They were using Cisco's dslams, but not sure if they are still in use or if they've been swapped out. Anyway, they are deploying those speeds right now with full duplex. Technology moves on. :) ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [Asterisk-Users] Should I choose DSL @ 1.5 or a full T1?
On Monday 13 June 2005 22:54, Eric Rees wrote: Correct me if I am wrong. I can remember installing a T1's with a HDSL unit at the last CO, in which the T1 was delivered to the customer's prem in two wires. I think they called this fast half-duplex. Just because it's two-wire doesn't mean it's not full-duplex. I have a schematic for a circuit that will do (IIRC) 10mbit FULL DUPLEX over one pair of wires. It does so by level-shifting the transmit and receive into different voltage ranges. While this isn't what HDSL2 is doing, I am certain that HDSL2 is full duplex as well. -A. ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [Asterisk-Users] Should I choose DSL @ 1.5 or a full T1?
On Monday 13 June 2005 21:14, Nir Simionovich wrote: do a little math (23+1)*64 = 1536kbps = 1.536Mbps, hence the speed for a single T1 circuit. Your math's a little off. T1 = 24 8-bit channels + 1 frame bit sent 8000 times a second. 24*8 = 192+1 = 193 bits sent 8000 times a second = 1544000bps. Now you don't get to play with the frame bit: 24*8 = 192 * 8000 = 1536000bps, which is the payload data rate of a T1. I won't get into the RBS signaling and framing but you get the idea. -A. ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
RE: [Asterisk-Users] Should I choose DSL @ 1.5 or a full T1?
Well, None of us is nitpicking here, are we? ;-) Nir S -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Andrew Kohlsmith Sent: Tuesday, June 14, 2005 2:56 PM To: asterisk-users@lists.digium.com Subject: Re: [Asterisk-Users] Should I choose DSL @ 1.5 or a full T1? On Monday 13 June 2005 21:14, Nir Simionovich wrote: do a little math (23+1)*64 = 1536kbps = 1.536Mbps, hence the speed for a single T1 circuit. Your math's a little off. T1 = 24 8-bit channels + 1 frame bit sent 8000 times a second. 24*8 = 192+1 = 193 bits sent 8000 times a second = 1544000bps. Now you don't get to play with the frame bit: 24*8 = 192 * 8000 = 1536000bps, which is the payload data rate of a T1. I won't get into the RBS signaling and framing but you get the idea. -A. ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
RE: [Asterisk-Users] Should I choose DSL @ 1.5 or a full T1?
LOL - Well, I think we all know a little more about DSL and T1 now at least Cheers all, W -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Nir Simionovich Sent: Tuesday, June 14, 2005 6:42 AM To: 'Asterisk Users Mailing List - Non-Commercial Discussion' Subject: RE: [Asterisk-Users] Should I choose DSL @ 1.5 or a full T1? Well, None of us is nitpicking here, are we? ;-) Nir S -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Andrew Kohlsmith Sent: Tuesday, June 14, 2005 2:56 PM To: asterisk-users@lists.digium.com Subject: Re: [Asterisk-Users] Should I choose DSL @ 1.5 or a full T1? On Monday 13 June 2005 21:14, Nir Simionovich wrote: do a little math (23+1)*64 = 1536kbps = 1.536Mbps, hence the speed for a single T1 circuit. Your math's a little off. T1 = 24 8-bit channels + 1 frame bit sent 8000 times a second. 24*8 = 192+1 = 193 bits sent 8000 times a second = 1544000bps. Now you don't get to play with the frame bit: 24*8 = 192 * 8000 = 1536000bps, which is the payload data rate of a T1. I won't get into the RBS signaling and framing but you get the idea. -A. ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [Asterisk-Users] Should I choose DSL @ 1.5 or a full T1?
* Barton Fisher ([EMAIL PROTECTED]) ha scritto: I found someone offering T1's for $290 a month + Loops or 3 Meg for $561 a month + Loops. Is this a good deal? when i read so high prices for bandwidth i wonder why i get 10Mbps over optical fiber for 70Euros/month. and i'm not a business customer... fc ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [Asterisk-Users] Should I choose DSL @ 1.5 or a full T1?
Your also not in the U.S. Out here in Southern California it's $500.00 - $600.00 a month for T1's. Filippo Carone wrote: * Barton Fisher ([EMAIL PROTECTED]) ha scritto: I found someone offering T1's for $290 a month + Loops or 3 Meg for $561 a month + Loops. Is this a good deal? when i read so high prices for bandwidth i wonder why i get 10Mbps over optical fiber for 70Euros/month. and i'm not a business customer... fc ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
RE: [Asterisk-Users] Should I choose DSL @ 1.5 or a full T1?
-Original Message- From: [EMAIL PROTECTED] [mailto:asterisk-users-[EMAIL PROTECTED] On Behalf Of Michael D Schelin Sent: Tuesday, June 14, 2005 11:06 AM To: Asterisk Users Mailing List - Non-Commercial Discussion Subject: Re: [Asterisk-Users] Should I choose DSL @ 1.5 or a full T1? Your also not in the U.S. Out here in Southern California it's $500.00 - $600.00 a month for T1's. Filippo Carone wrote: * Barton Fisher ([EMAIL PROTECTED]) ha scritto: I found someone offering T1's for $290 a month + Loops or 3 Meg for $561 a month + Loops. Is this a good deal? when i read so high prices for bandwidth i wonder why i get 10Mbps over optical fiber for 70Euros/month. and i'm not a business customer... There's also the fact that a lot of companies charge LESS for home access than for a business, under the assumption that the business will utilize it more, and/or can afford the higher price. -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.323 / Virus Database: 267.7.3/15 - Release Date: 6/14/2005 ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
RE: [Asterisk-Users] Should I choose DSL @ 1.5 or a full T1?
Which then presumably leads to higher overselling in the home market since use is presumed lower. Also there are often restriction on the line like no Ips given for servers and no servers allowed. I doubt they really care if we can afford it persay... I think it is just a matter of what pricepoint to what feature set. W There's also the fact that a lot of companies charge LESS for home access than for a business, under the assumption that the business will utilize it more, and/or can afford the higher price. -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.323 / Virus Database: 267.7.3/15 - Release Date: 6/14/2005 ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
RE: [Asterisk-Users] Should I choose DSL @ 1.5 or a full T1?
Anyone paying over $450 for a T1 is being ripped off... If you are in VA,MD,DC,PA,DE,NJ you can get an integrated VoIP T1 for $300 - $400 and a flat internet t1 for about $400. The integrated VoIP T1 is great because it's handed off as an ethernet - no need for a csu/dsu -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Wiley Siler Sent: Tuesday, June 14, 2005 3:39 PM To: Asterisk Users Mailing List - Non-Commercial Discussion; [EMAIL PROTECTED] Subject: RE: [Asterisk-Users] Should I choose DSL @ 1.5 or a full T1? Which then presumably leads to higher overselling in the home market since use is presumed lower. Also there are often restriction on the line like no Ips given for servers and no servers allowed. I doubt they really care if we can afford it persay... I think it is just a matter of what pricepoint to what feature set. W There's also the fact that a lot of companies charge LESS for home access than for a business, under the assumption that the business will utilize it more, and/or can afford the higher price. -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.323 / Virus Database: 267.7.3/15 - Release Date: 6/14/2005 ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [Asterisk-Users] Should I choose DSL @ 1.5 or a full T1?
On Jun 14, 2005, at 12:39, Wiley Siler wrote: Which then presumably leads to higher overselling in the home market since use is presumed lower. Also there are often restriction on the line like no Ips given for servers and no servers allowed. I doubt they really care if we can afford it persay... I think it is just a matter of what pricepoint to what feature set. W There's also the fact that a lot of companies charge LESS for home access than for a business, under the assumption that the business will utilize it more, and/or can afford the higher price. It's no so much can afford it but they're more willing to pay a higher price. Regards, Bryce Chidester Rhino Equipment Corp. [EMAIL PROTECTED]SIP: [EMAIL PROTECTED] +1 (480) 940-1826 x305IAX: [EMAIL PROTECTED]/305 ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
RE: [Asterisk-Users] Should I choose DSL @ 1.5 or a full T1?
On Tue, June 14, 2005 21:30, Bill McLaughlin said: SNIP There's also the fact that a lot of companies charge LESS for home access than for a business, under the assumption that the business will utilize it more, and/or can afford the higher price. Also home/private access (talking DSL here, not E1/T1!) usually is overbooked 25:1, whereas business connection are usually between 10:1 and 1:1 rates... Assuming the 10:1 ratio vs. 25:1, it would mean a company would have to pay 2,5 times what a customer pays for the ISP to make the same... at 4:1 (another common ratio) that would be 6.25 times as much... At EUR 75 for a home connection that'd be USD 525 for the business at 4:1 ratio... I can imagine the home fiber connection will probably be multiplexed to share a single uplink with x other homes as well, so you'd probably be looking at similar issues as I mentioned regarding the DSL ... -- Francesco Peeters GPG Key = AA69 E7C6 1D8A F148 160C D5C4 9943 6E38 D5E3 7704 If your program doesn't recognize my signature, please visit http://www.CAcert.org/index.php?id=3 to retrieve the Root CA certificate. ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
RE: [Asterisk-Users] Should I choose DSL @ 1.5 or a full T1?
Telecom has had the world by the short hairs for decades so being overcharged for technology that is 100 years old (excluding T1 and other newer stuff of course) is comepletely old hat for most people... That's why we are all here using VoIP right! Besides, they CAN charge it so they WILL charge it. Bummer but it is what it is... Now if I could just get better than $600ish for a PRI in AZ 8) W -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Huddleston, Robert Sent: Tuesday, June 14, 2005 12:49 PM To: 'Asterisk Users Mailing List - Non-Commercial Discussion' Subject: RE: [Asterisk-Users] Should I choose DSL @ 1.5 or a full T1? Anyone paying over $450 for a T1 is being ripped off... If you are in VA,MD,DC,PA,DE,NJ you can get an integrated VoIP T1 for $300 - $400 and a flat internet t1 for about $400. The integrated VoIP T1 is great because it's handed off as an ethernet - no need for a csu/dsu -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Wiley Siler Sent: Tuesday, June 14, 2005 3:39 PM To: Asterisk Users Mailing List - Non-Commercial Discussion; [EMAIL PROTECTED] Subject: RE: [Asterisk-Users] Should I choose DSL @ 1.5 or a full T1? Which then presumably leads to higher overselling in the home market since use is presumed lower. Also there are often restriction on the line like no Ips given for servers and no servers allowed. I doubt they really care if we can afford it persay... I think it is just a matter of what pricepoint to what feature set. W There's also the fact that a lot of companies charge LESS for home access than for a business, under the assumption that the business will utilize it more, and/or can afford the higher price. -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.323 / Virus Database: 267.7.3/15 - Release Date: 6/14/2005 ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [Asterisk-Users] Should I choose DSL @ 1.5 or a full T1?
Wow! I never learn so much! Thanks Guys So if I understand correctly, a full T1 should be 1.5Mbps full duplex. And it should support 22 SIP Users at once - Right? Bart - Original Message - From: Wiley Siler [EMAIL PROTECTED] To: Asterisk Users Mailing List - Non-Commercial Discussion asterisk-users@lists.digium.com Sent: Tuesday, June 14, 2005 1:07 PM Subject: RE: [Asterisk-Users] Should I choose DSL @ 1.5 or a full T1? Telecom has had the world by the short hairs for decades so being overcharged for technology that is 100 years old (excluding T1 and other newer stuff of course) is comepletely old hat for most people... That's why we are all here using VoIP right! Besides, they CAN charge it so they WILL charge it. Bummer but it is what it is... Now if I could just get better than $600ish for a PRI in AZ 8) W -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Huddleston, Robert Sent: Tuesday, June 14, 2005 12:49 PM To: 'Asterisk Users Mailing List - Non-Commercial Discussion' Subject: RE: [Asterisk-Users] Should I choose DSL @ 1.5 or a full T1? Anyone paying over $450 for a T1 is being ripped off... If you are in VA,MD,DC,PA,DE,NJ you can get an integrated VoIP T1 for $300 - $400 and a flat internet t1 for about $400. The integrated VoIP T1 is great because it's handed off as an ethernet - no need for a csu/dsu -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Wiley Siler Sent: Tuesday, June 14, 2005 3:39 PM To: Asterisk Users Mailing List - Non-Commercial Discussion; [EMAIL PROTECTED] Subject: RE: [Asterisk-Users] Should I choose DSL @ 1.5 or a full T1? Which then presumably leads to higher overselling in the home market since use is presumed lower. Also there are often restriction on the line like no Ips given for servers and no servers allowed. I doubt they really care if we can afford it persay... I think it is just a matter of what pricepoint to what feature set. W There's also the fact that a lot of companies charge LESS for home access than for a business, under the assumption that the business will utilize it more, and/or can afford the higher price. -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.323 / Virus Database: 267.7.3/15 - Release Date: 6/14/2005 ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users This message was check with eTrust Antivirus [undefined] and found virus free. ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
RE: [Asterisk-Users] Should I choose DSL @ 1.5 or a full T1?
Wow! I never learn so much! Thanks Guys So if I understand correctly, a full T1 should be 1.5Mbps full duplex. And it should support 22 SIP Users at once - Right? Bart Probably closer to 20 depending on setup/teardown frequency. This is only if the line is dedicated VoIP, no other data traffic. Assuming 64k RTP like g.711 You have to decide how much data and how much voip and define rules on your router (traffic shaping or priority queuing, etc.) to enforce QoS. ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
RE: [Asterisk-Users] Should I choose DSL @ 1.5 or a full T1?
Speakeasy SDSL Is 1.5 Megs, is business class (so you get an SLA) and only costs around $100 per month. W -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Robert Goodyear Sent: Friday, June 10, 2005 7:02 PM To: Asterisk Users Mailing List - Non-Commercial Discussion Subject: Re: [Asterisk-Users] Should I choose DSL @ 1.5 or a full T1? On Jun 10, 2005, at 6:38 PM, Michael Welter wrote: Barton Fisher wrote: I'm looking to expand my bandwidth for my Asterisk PBX. Why should I choose a T1 over DSL for my asterisk server? I found someone offering T1's for $290 a month + Loops or 3 Meg for $561 a month + Loops. Is this a good deal? Thanks Bart - - -- ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users Where are you located? What CLEC gives you a T-1 for $290? FWIW I provisioned a PRI and a DS-1 for $300 each. Don't know if I'm getting a break for having a voice and a data circuit broken out from one fiber drop, but that's what I'm paying here in Orange County. Also, I had a business cable modem before, which was *allegedly* not shared for business customers (suspicious) and the throughput was a roller coaster, as was the latency. The DS-1 cleared all that up. /rg Robert Goodyear Brand Up LLC http://www.brand-up.com ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
RE: [Asterisk-Users] Should I choose DSL @ 1.5 or a full T1?
You are aware that DSL (even SDSL) is half duplex and a T1 is full duplex, right? 1.5m sdsl can only do 768 sustained duplex, or 1.5 out 0 in, or 0 out 1.5 in. a T1 will do 1.5 in and 1.5 out sustained. This is due to a separate transmit and receive path on a t1 and a shared path on sdsl. The s in sdsl means symmetrical, not duplex, that is that the signaling rate is the same in either direction, but still half duplex. For VoIP a t1 is worth double what a 1.5 sdsl is because of the duplex nature of the traffic, unlike most internet that is download-centric. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Wiley Siler Sent: Monday, June 13, 2005 9:43 AM To: Asterisk Users Mailing List - Non-Commercial Discussion Subject: RE: [Asterisk-Users] Should I choose DSL @ 1.5 or a full T1? Speakeasy SDSL Is 1.5 Megs, is business class (so you get an SLA) and only costs around $100 per month. W -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Robert Goodyear Sent: Friday, June 10, 2005 7:02 PM To: Asterisk Users Mailing List - Non-Commercial Discussion Subject: Re: [Asterisk-Users] Should I choose DSL @ 1.5 or a full T1? On Jun 10, 2005, at 6:38 PM, Michael Welter wrote: Barton Fisher wrote: I'm looking to expand my bandwidth for my Asterisk PBX. Why should I choose a T1 over DSL for my asterisk server? I found someone offering T1's for $290 a month + Loops or 3 Meg for $561 a month + Loops. Is this a good deal? Thanks Bart - - -- ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users Where are you located? What CLEC gives you a T-1 for $290? FWIW I provisioned a PRI and a DS-1 for $300 each. Don't know if I'm getting a break for having a voice and a data circuit broken out from one fiber drop, but that's what I'm paying here in Orange County. Also, I had a business cable modem before, which was *allegedly* not shared for business customers (suspicious) and the throughput was a roller coaster, as was the latency. The DS-1 cleared all that up. /rg Robert Goodyear Brand Up LLC http://www.brand-up.com ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [Asterisk-Users] Should I choose DSL @ 1.5 or a full T1?
SDSL has symmetrical speeds and full duplex communications.
Of the widely deployed lan/wan technologies, the only one I know of that is
half-duplex is 802.11{b,g}.
The only technical difference between a T1 and SDSL is how it's physically
delivered to the customer, what usually happens is that a T1 is not oversold,
while an SDSL is oversold anywhere from 8:1 to 3:1.
ADSL is full duplex as well, if you don't know how to do QOS then it will feel
like it's half duplex, but it's not. I have 1000/320 ADSL that I can use full
bandwidth both ways.
Marcelo Pacheco
Em Seg 13 Jun 2005 20:54, Damon Estep escreveu:
You are aware that DSL (even SDSL) is half duplex and a T1 is full
duplex, right?
1.5m sdsl can only do 768 sustained duplex, or 1.5 out 0 in, or 0 out
1.5 in. a T1 will do 1.5 in and 1.5 out sustained.
This is due to a separate transmit and receive path on a t1 and a shared
path on sdsl.
The s in sdsl means symmetrical, not duplex, that is that the signaling
rate is the same in either direction, but still half duplex.
For VoIP a t1 is worth double what a 1.5 sdsl is because of the duplex
nature of the traffic, unlike most internet that is download-centric.
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Wiley
Siler
Sent: Monday, June 13, 2005 9:43 AM
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: RE: [Asterisk-Users] Should I choose DSL @ 1.5 or a full T1?
Speakeasy SDSL Is 1.5 Megs, is business class (so you get an SLA) and
only costs around $100 per month.
W
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Robert
Goodyear
Sent: Friday, June 10, 2005 7:02 PM
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: Re: [Asterisk-Users] Should I choose DSL @ 1.5 or a full T1?
On Jun 10, 2005, at 6:38 PM, Michael Welter wrote:
Barton Fisher wrote:
I'm looking to expand my bandwidth for my Asterisk PBX. Why should I
choose a T1 over DSL for my asterisk server? I found someone
offering T1's for $290 a month + Loops or 3 Meg for $561 a month +
Loops. Is this a good deal?
Thanks
Bart
-
-
--
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Where are you located? What CLEC gives you a T-1 for $290?
FWIW I provisioned a PRI and a DS-1 for $300 each. Don't know if I'm
getting a break for having a voice and a data circuit broken out from
one fiber drop, but that's what I'm paying here in Orange County. Also,
I had a business cable modem before, which was *allegedly* not shared
for business customers (suspicious) and the throughput was a roller
coaster, as was the latency. The DS-1 cleared all that up.
/rg
Robert Goodyear
Brand Up LLC
http://www.brand-up.com
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RE: [Asterisk-Users] Should I choose DSL @ 1.5 or a full T1?
Are you sure? Everything I have seen says SDSL = Full Duplex. That being achieved by dropping the pair that provided voice and using it for signalling. Where ADSL utilizes unoccupied frequencies and averts conflict with analog voice frequencies, SDSL takes over the whole line. SDSL eliminates analog voice capabilities in favor of full-duplex data transmission. No splitter, no analog voice-nothing but data. As a decent alternative to T1, SDSL has gotten a fair amount of attention from Competitive Local Exchange Carriers. Excerpt from http://www.isp-select.com/SDSL.htm Cheers, Wiley -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Damon Estep Sent: Monday, June 13, 2005 4:55 PM To: Asterisk Users Mailing List - Non-Commercial Discussion Subject: RE: [Asterisk-Users] Should I choose DSL @ 1.5 or a full T1? You are aware that DSL (even SDSL) is half duplex and a T1 is full duplex, right? 1.5m sdsl can only do 768 sustained duplex, or 1.5 out 0 in, or 0 out 1.5 in. a T1 will do 1.5 in and 1.5 out sustained. This is due to a separate transmit and receive path on a t1 and a shared path on sdsl. The s in sdsl means symmetrical, not duplex, that is that the signaling rate is the same in either direction, but still half duplex. For VoIP a t1 is worth double what a 1.5 sdsl is because of the duplex nature of the traffic, unlike most internet that is download-centric. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Wiley Siler Sent: Monday, June 13, 2005 9:43 AM To: Asterisk Users Mailing List - Non-Commercial Discussion Subject: RE: [Asterisk-Users] Should I choose DSL @ 1.5 or a full T1? Speakeasy SDSL Is 1.5 Megs, is business class (so you get an SLA) and only costs around $100 per month. W -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Robert Goodyear Sent: Friday, June 10, 2005 7:02 PM To: Asterisk Users Mailing List - Non-Commercial Discussion Subject: Re: [Asterisk-Users] Should I choose DSL @ 1.5 or a full T1? On Jun 10, 2005, at 6:38 PM, Michael Welter wrote: Barton Fisher wrote: I'm looking to expand my bandwidth for my Asterisk PBX. Why should I choose a T1 over DSL for my asterisk server? I found someone offering T1's for $290 a month + Loops or 3 Meg for $561 a month + Loops. Is this a good deal? Thanks Bart - - -- ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users Where are you located? What CLEC gives you a T-1 for $290? FWIW I provisioned a PRI and a DS-1 for $300 each. Don't know if I'm getting a break for having a voice and a data circuit broken out from one fiber drop, but that's what I'm paying here in Orange County. Also, I had a business cable modem before, which was *allegedly* not shared for business customers (suspicious) and the throughput was a roller coaster, as was the latency. The DS-1 cleared all that up. /rg Robert Goodyear Brand Up LLC http://www.brand-up.com ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [Asterisk-Users] Should I choose DSL @ 1.5 or a full T1?
Damon, I have no idea where you are getting your information from, but what you said makes no sense. DSL based lines, be it ADSL or SDSL, are based upon a connection technology in the ATM family. As a result, the upstream and downstream of the connection can be controlled seperately. If someone offers you a 1.5 SDSL connection, it doesn't actually mean that you have 2x768kbps, it may actually mean that you have 2x1.5Mbps. However, that speed is only towards your internet provider, what you get beyond that point would be bound to your ISP's SLA and contract. Now, E1 and T1 lines are based upon a channel based connection, which means you get a line with X number of data lines and a single control/signalling line. On T1 it means that you have 23 lines dedicated for Voice/Data (each is 64kbps) and a single signaling line (64kbps). Now, lets do a little math (23+1)*64 = 1536kbps = 1.536Mbps, hence the speed for a single T1 circuit. Now, if you have a T1 installed, and you are currently using 512kbps of upload, it means that you are physically using 8 lines out of the 23 data lines for uploading. You can then use the rest to what ever purpose you want, but while those lines are in play, you won't be upload another 512kbps on the same lines. The reason for that is that each of these lines operates on a seperate Time Slot within the physical layer. Once a Time Slot is taken for a specific data flow, it can't be used for another data flow. This actually means that a T1 will give you a shared 1.5Mbps towards your ISP, with speed that vary on the upload and download, according to your usage. While when using a DSL, your quality of service for the connection to the ISP is described by the policy of connection. In many countries (eg: Israel, Turkey, China, UK), DSL lines are actually ADSL lines, where the downstream is around 1.5Mbps while the uplink is around 128kbps (just enough to do a little VoIP). Last time I was in the UK, about 4 weeks ago, I noticed they are now selling 8Mbps ADSL connection to your house, however, the uplink is 512kbps. I would suggest that you get all the information from your providers regarding the type of services rendered on the SDSL line, and make sure that it's the right one for you. Nir S Damon Estep wrote: You are aware that DSL (even SDSL) is half duplex and a T1 is full duplex, right? 1.5m sdsl can only do 768 sustained duplex, or 1.5 out 0 in, or 0 out 1.5 in. a T1 will do 1.5 in and 1.5 out sustained. This is due to a separate transmit and receive path on a t1 and a shared path on sdsl. The s in sdsl means symmetrical, not duplex, that is that the signaling rate is the same in either direction, but still half duplex. For VoIP a t1 is worth double what a 1.5 sdsl is because of the duplex nature of the traffic, unlike most internet that is download-centric. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Wiley Siler Sent: Monday, June 13, 2005 9:43 AM To: Asterisk Users Mailing List - Non-Commercial Discussion Subject: RE: [Asterisk-Users] Should I choose DSL @ 1.5 or a full T1? Speakeasy SDSL Is 1.5 Megs, is business class (so you get an SLA) and only costs around $100 per month. W -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Robert Goodyear Sent: Friday, June 10, 2005 7:02 PM To: Asterisk Users Mailing List - Non-Commercial Discussion Subject: Re: [Asterisk-Users] Should I choose DSL @ 1.5 or a full T1? On Jun 10, 2005, at 6:38 PM, Michael Welter wrote: Barton Fisher wrote: I'm looking to expand my bandwidth for my Asterisk PBX. Why should I choose a T1 over DSL for my asterisk server? I found someone offering T1's for $290 a month + Loops or 3 Meg for $561 a month + Loops. Is this a good deal? Thanks Bart - - -- ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users Where are you located? What CLEC gives you a T-1 for $290? FWIW I provisioned a PRI and a DS-1 for $300 each. Don't know if I'm getting a break for having a voice and a data circuit broken out from one fiber drop, but that's what I'm paying here in Orange County. Also, I had a business cable modem before, which was *allegedly* not shared for business customers (suspicious) and the throughput was a roller coaster, as was the latency. The DS-1 cleared all that up. /rg Robert Goodyear Brand Up LLC http://www.brand-up.com ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo
Re: [Asterisk-Users] Should I choose DSL @ 1.5 or a full T1?
Marcelo Pacheco wrote:
SDSL has symmetrical speeds and full duplex communications.
Of the widely deployed lan/wan technologies, the only one I know of that is
half-duplex is 802.11{b,g}.
802.11b/g are standards used in wireless (Wi-Fi) connections, there is
no relation to the symetrics or
asymetrics of the actual physical line.
The only technical difference between a T1 and SDSL is how it's physically
delivered to the customer, what usually happens is that a T1 is not oversold,
while an SDSL is oversold anywhere from 8:1 to 3:1.
That is correct in the genereal idea, however, as xDSL technologies are
switched technologies, unlike
cable (DOCSIS) technologies, the fact that you are overloaded 8:1 or 3:1
will not really matter. As long
as your equipment supports QoS correctly, you shouldn't have a problem.
ADSL is full duplex as well, if you don't know how to do QOS then it will feel
like it's half duplex, but it's not. I have 1000/320 ADSL that I can use full
bandwidth both ways.
ADSL appears to be half-duplex only due to the fact that most ISP's
misconfigure the modems and routers.
As a rule of thumb, the modem/router can be re-configured to utilize
both channels to the fullest, but again, this
must rely on the fact that your ISP's equipment supports QoS at the
switch level correctly.
Nir S
Marcelo Pacheco
Em Seg 13 Jun 2005 20:54, Damon Estep escreveu:
You are aware that DSL (even SDSL) is half duplex and a T1 is full
duplex, right?
1.5m sdsl can only do 768 sustained duplex, or 1.5 out 0 in, or 0 out
1.5 in. a T1 will do 1.5 in and 1.5 out sustained.
This is due to a separate transmit and receive path on a t1 and a shared
path on sdsl.
The s in sdsl means symmetrical, not duplex, that is that the signaling
rate is the same in either direction, but still half duplex.
For VoIP a t1 is worth double what a 1.5 sdsl is because of the duplex
nature of the traffic, unlike most internet that is download-centric.
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Wiley
Siler
Sent: Monday, June 13, 2005 9:43 AM
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: RE: [Asterisk-Users] Should I choose DSL @ 1.5 or a full T1?
Speakeasy SDSL Is 1.5 Megs, is business class (so you get an SLA) and
only costs around $100 per month.
W
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Robert
Goodyear
Sent: Friday, June 10, 2005 7:02 PM
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: Re: [Asterisk-Users] Should I choose DSL @ 1.5 or a full T1?
On Jun 10, 2005, at 6:38 PM, Michael Welter wrote:
Barton Fisher wrote:
I'm looking to expand my bandwidth for my Asterisk PBX. Why should I
choose a T1 over DSL for my asterisk server? I found someone
offering T1's for $290 a month + Loops or 3 Meg for $561 a month +
Loops. Is this a good deal?
Thanks
Bart
-
-
--
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Where are you located? What CLEC gives you a T-1 for $290?
FWIW I provisioned a PRI and a DS-1 for $300 each. Don't know if I'm
getting a break for having a voice and a data circuit broken out from
one fiber drop, but that's what I'm paying here in Orange County. Also,
I had a business cable modem before, which was *allegedly* not shared
for business customers (suspicious) and the throughput was a roller
coaster, as was the latency. The DS-1 cleared all that up.
/rg
Robert Goodyear
Brand Up LLC
http://www.brand-up.com
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Re: [Asterisk-Users] Should I choose DSL @ 1.5 or a full T1?
Nir Simionovich wrote: Now, E1 and T1 lines are based upon a channel based connection, which means you get a line with X number of data lines and a single control/signalling line. On T1 it means that you have 23 lines dedicated for Voice/Data (each is 64kbps) and a single signaling line (64kbps). A T1 has no seperate signaling line - You're thinking of PRI. T1 gives you 24 DS0 (64kbit) channels, which you can do whatever you want with. PRI just shanks off one channel for D channel signaling. David -- David J. Coulson email: [EMAIL PROTECTED] web: http://www.davidcoulson.net/ phone: (216) 920-3100 / (216) 258-4942 ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
RE: [Asterisk-Users] Should I choose DSL @ 1.5 or a full T1?
BTW - The Speakeasy SDSL connection I originally posted about is
delivered via Covad.
The SLA (some of it at least)
Average Network Delivery and Delay2 - Further proof that Covad has
confidence in the performance of our network.
Delivery - 99.9% successful delivery of all data packets sent from your
location over the Covad network, or you will be eligible for a credit of
up to 10% of your monthly service fee.
Delay - 110 millisecond average for the round trip of a message sent
from your location to a test point on the Covad network, or you will be
eligible for a credit of up to 10% of your monthly service fee.
SLA can be found here...
http://www.covad.com/products/access/telespeed/details.shtml#sla
Being only 4000 feet from the Central Office, this works very well for
me.
I have not been able to figure if QoS is possible yet.
Haven't figured out the examples from the Wiki for QoS via HFB (I think)
and no answer from techs yet.
Thanks,
Wiley
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Nir
Simionovich
Sent: Monday, June 13, 2005 6:22 PM
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: Re: [Asterisk-Users] Should I choose DSL @ 1.5 or a full T1?
Marcelo Pacheco wrote:
SDSL has symmetrical speeds and full duplex communications.
Of the widely deployed lan/wan technologies, the only one I know of
that is half-duplex is 802.11{b,g}.
802.11b/g are standards used in wireless (Wi-Fi) connections, there is
no relation to the symetrics or asymetrics of the actual physical line.
The only technical difference between a T1 and SDSL is how it's
physically delivered to the customer, what usually happens is that a T1
is not oversold, while an SDSL is oversold anywhere from 8:1 to 3:1.
That is correct in the genereal idea, however, as xDSL technologies are
switched technologies, unlike cable (DOCSIS) technologies, the fact that
you are overloaded 8:1 or 3:1 will not really matter. As long as your
equipment supports QoS correctly, you shouldn't have a problem.
ADSL is full duplex as well, if you don't know how to do QOS then it
will feel like it's half duplex, but it's not. I have 1000/320 ADSL
that I can use full bandwidth both ways.
ADSL appears to be half-duplex only due to the fact that most ISP's
misconfigure the modems and routers.
As a rule of thumb, the modem/router can be re-configured to utilize
both channels to the fullest, but again, this must rely on the fact that
your ISP's equipment supports QoS at the switch level correctly.
Nir S
Marcelo Pacheco
Em Seg 13 Jun 2005 20:54, Damon Estep escreveu:
You are aware that DSL (even SDSL) is half duplex and a T1 is full
duplex, right?
1.5m sdsl can only do 768 sustained duplex, or 1.5 out 0 in, or 0 out
1.5 in. a T1 will do 1.5 in and 1.5 out sustained.
This is due to a separate transmit and receive path on a t1 and a
shared path on sdsl.
The s in sdsl means symmetrical, not duplex, that is that the
signaling rate is the same in either direction, but still half duplex.
For VoIP a t1 is worth double what a 1.5 sdsl is because of the duplex
nature of the traffic, unlike most internet that is download-centric.
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Wiley
Siler
Sent: Monday, June 13, 2005 9:43 AM
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: RE: [Asterisk-Users] Should I choose DSL @ 1.5 or a full T1?
Speakeasy SDSL Is 1.5 Megs, is business class (so you get an SLA) and
only costs around $100 per month.
W
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Robert
Goodyear
Sent: Friday, June 10, 2005 7:02 PM
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: Re: [Asterisk-Users] Should I choose DSL @ 1.5 or a full T1?
On Jun 10, 2005, at 6:38 PM, Michael Welter wrote:
Barton Fisher wrote:
I'm looking to expand my bandwidth for my Asterisk PBX. Why should
I
choose a T1 over DSL for my asterisk server? I found someone
offering T1's for $290 a month + Loops or 3 Meg for $561 a month +
Loops. Is this a good deal?
Thanks
Bart
-
-
--
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Where are you located? What CLEC gives you a T-1 for $290?
FWIW I provisioned a PRI and a DS-1 for $300 each. Don't know if I'm
getting a break for having a voice and a data circuit broken out from
one fiber drop, but that's what I'm paying here in Orange County.
Also, I had a business cable modem before, which was *allegedly* not
shared for business customers (suspicious) and the throughput was a
roller coaster, as was the latency
Re: [Asterisk-Users] Should I choose DSL @ 1.5 or a full T1?
Hi David, You are correct, I always get those 2 confused. Thanks for the clearing. Nir S David Coulson wrote: Nir Simionovich wrote: Now, E1 and T1 lines are based upon a channel based connection, which means you get a line with X number of data lines and a single control/signalling line. On T1 it means that you have 23 lines dedicated for Voice/Data (each is 64kbps) and a single signaling line (64kbps). A T1 has no seperate signaling line - You're thinking of PRI. T1 gives you 24 DS0 (64kbit) channels, which you can do whatever you want with. PRI just shanks off one channel for D channel signaling. David ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
RE: [Asterisk-Users] Should I choose DSL @ 1.5 or a full T1?
Not really true about T1 description. When you apply for T1, you need tell vendor if it's channelized or non-ch. If you are going to use it for 1.5M network, you need use unchannelized T1. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Nir Simionovich Sent: June 13, 2005 6:44 PM To: Asterisk Users Mailing List - Non-Commercial Discussion Subject: Re: [Asterisk-Users] Should I choose DSL @ 1.5 or a full T1? Hi David, You are correct, I always get those 2 confused. Thanks for the clearing. Nir S David Coulson wrote: Nir Simionovich wrote: Now, E1 and T1 lines are based upon a channel based connection, which means you get a line with X number of data lines and a single control/signalling line. On T1 it means that you have 23 lines dedicated for Voice/Data (each is 64kbps) and a single signaling line (64kbps). A T1 has no seperate signaling line - You're thinking of PRI. T1 gives you 24 DS0 (64kbit) channels, which you can do whatever you want with. PRI just shanks off one channel for D channel signaling. David ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [Asterisk-Users] Should I choose DSL @ 1.5 or a full T1?
Leon Sun wrote: Not really true about T1 description. When you apply for T1, you need tell vendor if it's channelized or non-ch. If you are going to use it for 1.5M network, you need use unchannelized T1. T1 is T1. How you use the DS0s delivered across it is up to you. You can mux them out to POTS lines, use them all for data or mix it up and run voice and data over the same T1. Telco vendors don't care what you do with it, unless it's terminating for data/voice in their equipment. Even when you use all 24 channels for data, they still function as 24 distinct DS0 channels as far as timing is concerned. Unlike OC-nc circuits (Where you save some overhead for the sake of being unable to channelize the STS channels) , there is no overhead variation when channelizing a DS-1 versus using a full DS-1 for data. David -- David J. Coulson email: [EMAIL PROTECTED] web: http://www.davidcoulson.net/ phone: (216) 920-3100 / (216) 258-4942 ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
RE: [Asterisk-Users] Should I choose DSL @ 1.5 or a full T1?
OK, You guys have me second guessing my training and experience in this area, so; 1. If I am wrong I apologize to the group. 2. I have been trying for a few minutes to find confirmation either way. From what I know about the modulation techniques used by DSL (DMT, CAP, QAM) it is impossible for the transceiver in the device to transmit and receive at the same time (unless there is discreet channels for each path and a very good transceiver). Does anyone have any definitive technical resources confirming that any form of xDSL technology can transmit and receive at precisely the same time (not interleaved). Can anyone provide a more logical explanation of why the outbound latency on every DSL modem tested increases with inbound traffic? Even at rates well below the maximum data rate, Not the case on a T1. My explanation is that the additional latency is due to packet scheduling and queuing mechanisms required by the technology. Maybe I will learn something this evening. Damon -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Wiley Siler Sent: Monday, June 13, 2005 6:14 PM To: Asterisk Users Mailing List - Non-Commercial Discussion Subject: RE: [Asterisk-Users] Should I choose DSL @ 1.5 or a full T1? Are you sure? Everything I have seen says SDSL = Full Duplex. That being achieved by dropping the pair that provided voice and using it for signalling. Where ADSL utilizes unoccupied frequencies and averts conflict with analog voice frequencies, SDSL takes over the whole line. SDSL eliminates analog voice capabilities in favor of full-duplex data transmission. No splitter, no analog voice-nothing but data. As a decent alternative to T1, SDSL has gotten a fair amount of attention from Competitive Local Exchange Carriers. Excerpt from http://www.isp-select.com/SDSL.htm Cheers, Wiley -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Damon Estep Sent: Monday, June 13, 2005 4:55 PM To: Asterisk Users Mailing List - Non-Commercial Discussion Subject: RE: [Asterisk-Users] Should I choose DSL @ 1.5 or a full T1? You are aware that DSL (even SDSL) is half duplex and a T1 is full duplex, right? 1.5m sdsl can only do 768 sustained duplex, or 1.5 out 0 in, or 0 out 1.5 in. a T1 will do 1.5 in and 1.5 out sustained. This is due to a separate transmit and receive path on a t1 and a shared path on sdsl. The s in sdsl means symmetrical, not duplex, that is that the signaling rate is the same in either direction, but still half duplex. For VoIP a t1 is worth double what a 1.5 sdsl is because of the duplex nature of the traffic, unlike most internet that is download-centric. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Wiley Siler Sent: Monday, June 13, 2005 9:43 AM To: Asterisk Users Mailing List - Non-Commercial Discussion Subject: RE: [Asterisk-Users] Should I choose DSL @ 1.5 or a full T1? Speakeasy SDSL Is 1.5 Megs, is business class (so you get an SLA) and only costs around $100 per month. W -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Robert Goodyear Sent: Friday, June 10, 2005 7:02 PM To: Asterisk Users Mailing List - Non-Commercial Discussion Subject: Re: [Asterisk-Users] Should I choose DSL @ 1.5 or a full T1? On Jun 10, 2005, at 6:38 PM, Michael Welter wrote: Barton Fisher wrote: I'm looking to expand my bandwidth for my Asterisk PBX. Why should I choose a T1 over DSL for my asterisk server? I found someone offering T1's for $290 a month + Loops or 3 Meg for $561 a month + Loops. Is this a good deal? Thanks Bart - - -- ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users Where are you located? What CLEC gives you a T-1 for $290? FWIW I provisioned a PRI and a DS-1 for $300 each. Don't know if I'm getting a break for having a voice and a data circuit broken out from one fiber drop, but that's what I'm paying here in Orange County. Also, I had a business cable modem before, which was *allegedly* not shared for business customers (suspicious) and the throughput was a roller coaster, as was the latency. The DS-1 cleared all that up. /rg Robert Goodyear Brand Up LLC http://www.brand-up.com ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users
RE: [Asterisk-Users] Should I choose DSL @ 1.5 or a full T1?
Subscriber Line 2 was designed to transport T1 signaling at 1.544 Mb/s over a single copper pair. HDSL2 uses overlapped phase Trellis-code interlocked spectrum (OPTIS). IDSL ISDN based DSL developed originally by Ascend Communications. IDSL uses 2B1Q line coding and typically supports data transfer rates of 128 Kb/s. Many end users have had to suffice with IDSL service when full speed ADSL was not available in their area. This technology is similar to ISDN, but uses the full bandwidth of two 64 Kb/s bearer channels plus one 16 Kb/s delta channel. MDSL Usually this stands for multi-rate Digital Subscriber Line (MDSL). It depends on the context of the acronym as to its meaning. It is either a proprietary scheme for SDSL or simply a generic alternative to the more common ADSL name. In the former case, you may see the acronym MSDSL. There is also another proprietary scheme which stands for medium-bit-rate DSL. Confused yet? RADSL Rate Adaptive Digital Subscriber Line (RADSL) is any rate adaptive xDSL modem, but may specifically refer to a proprietary modulation standard designed by Globespan Semiconductor. It uses carrierless amplitude and phase modulation (CAP). T1.413 standard DMT modems are also technically RADSL, but generally not referred to as such. The uplink rate depends on the downlink rate, which is a function of line conditions and signal to noise ratio (SNR). SDSL Symmetric Digital Subscriber Line (SDSL) is a 2-wire implementation of HDSL. Supports T1/E1 on a single pair to a distance of 11,000 ft. The name has become more generic over time to refer to symmetric service at a variety of rates over a single loop. UDSL Universal DSL. See G.lite. VDSL Very High Bit-rate Digital Subscriber Line (VDSL) is proposed for shorter local loops, perhaps up to 3000 ft. Data rates exceed 10 Mb/s. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Nir Simionovich Sent: Monday, June 13, 2005 7:15 PM To: Asterisk Users Mailing List - Non-Commercial Discussion Subject: Re: [Asterisk-Users] Should I choose DSL @ 1.5 or a full T1? ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
RE: [Asterisk-Users] Should I choose DSL @ 1.5 or a full T1?
On Mon, 13 Jun 2005, Damon Estep wrote: You guys have me second guessing my training and experience in this area, so; 1. If I am wrong I apologize to the group. 2. I have been trying for a few minutes to find confirmation either way. From what I know about the modulation techniques used by DSL (DMT, CAP, QAM) it is impossible for the transceiver in the device to transmit and receive at the same time (unless there is discreet channels for each path and a very good transceiver). There are three frequency ranges on ADSL, the voice portion (lowest), the upstream (middle), and the downstream (highest). They are split into different frequencies so filters can pick out the up and down. It's capable of full duplex, but as the downstream speed increases, the big differential causes the issue below. Can anyone provide a more logical explanation of why the outbound latency on every DSL modem tested increases with inbound traffic? Even at rates well below the maximum data rate, Not the case on a T1. My explanation is that the additional latency is due to packet scheduling and queuing mechanisms required by the technology. That is usually due to the TCP acks getting delayed in transit, making the other end wait to send the next packets. On a symmetrical circuit you don't see it as much, but the asymmetry on ADSL makes it more apparent. dave -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Wiley Siler Sent: Monday, June 13, 2005 6:14 PM To: Asterisk Users Mailing List - Non-Commercial Discussion Subject: RE: [Asterisk-Users] Should I choose DSL @ 1.5 or a full T1? Are you sure? Everything I have seen says SDSL = Full Duplex. That being achieved by dropping the pair that provided voice and using it for signalling. Where ADSL utilizes unoccupied frequencies and averts conflict with analog voice frequencies, SDSL takes over the whole line. SDSL eliminates analog voice capabilities in favor of full-duplex data transmission. No splitter, no analog voice-nothing but data. As a decent alternative to T1, SDSL has gotten a fair amount of attention from Competitive Local Exchange Carriers. Excerpt from http://www.isp-select.com/SDSL.htm Cheers, Wiley -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Damon Estep Sent: Monday, June 13, 2005 4:55 PM To: Asterisk Users Mailing List - Non-Commercial Discussion Subject: RE: [Asterisk-Users] Should I choose DSL @ 1.5 or a full T1? You are aware that DSL (even SDSL) is half duplex and a T1 is full duplex, right? 1.5m sdsl can only do 768 sustained duplex, or 1.5 out 0 in, or 0 out 1.5 in. a T1 will do 1.5 in and 1.5 out sustained. This is due to a separate transmit and receive path on a t1 and a shared path on sdsl. The s in sdsl means symmetrical, not duplex, that is that the signaling rate is the same in either direction, but still half duplex. For VoIP a t1 is worth double what a 1.5 sdsl is because of the duplex nature of the traffic, unlike most internet that is download-centric. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Wiley Siler Sent: Monday, June 13, 2005 9:43 AM To: Asterisk Users Mailing List - Non-Commercial Discussion Subject: RE: [Asterisk-Users] Should I choose DSL @ 1.5 or a full T1? Speakeasy SDSL Is 1.5 Megs, is business class (so you get an SLA) and only costs around $100 per month. W -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Robert Goodyear Sent: Friday, June 10, 2005 7:02 PM To: Asterisk Users Mailing List - Non-Commercial Discussion Subject: Re: [Asterisk-Users] Should I choose DSL @ 1.5 or a full T1? On Jun 10, 2005, at 6:38 PM, Michael Welter wrote: Barton Fisher wrote: I'm looking to expand my bandwidth for my Asterisk PBX. Why should I choose a T1 over DSL for my asterisk server? I found someone offering T1's for $290 a month + Loops or 3 Meg for $561 a month + Loops. Is this a good deal? Thanks Bart - - -- ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users Where are you located? What CLEC gives you a T-1 for $290? FWIW I provisioned a PRI and a DS-1 for $300 each. Don't know if I'm getting a break for having a voice and a data circuit broken out from one fiber drop, but that's what I'm paying here in Orange County. Also, I had a business cable modem before, which was *allegedly* not shared for business customers (suspicious) and the throughput was a roller coaster, as was the latency. The DS-1 cleared all that up. /rg Robert Goodyear Brand Up LLC http://www.brand-up.com ___ Asterisk-Users mailing
RE: [Asterisk-Users] Should I choose DSL @ 1.5 or a full T1?
Correct me if I am wrong. I can remember installing a T1's with a HDSL unit at the last CO, in which the T1 was delivered to the customer's prem in two wires. I think they called this fast half-duplex. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of David Coulson Sent: Monday, June 13, 2005 8:24 PM To: Asterisk Users Mailing List - Non-Commercial Discussion Subject: Re: [Asterisk-Users] Should I choose DSL @ 1.5 or a full T1? Leon Sun wrote: Not really true about T1 description. When you apply for T1, you need tell vendor if it's channelized or non-ch. If you are going to use it for 1.5M network, you need use unchannelized T1. T1 is T1. How you use the DS0s delivered across it is up to you. You can mux them out to POTS lines, use them all for data or mix it up and run voice and data over the same T1. Telco vendors don't care what you do with it, unless it's terminating for data/voice in their equipment. Even when you use all 24 channels for data, they still function as 24 distinct DS0 channels as far as timing is concerned. Unlike OC-nc circuits (Where you save some overhead for the sake of being unable to channelize the STS channels) , there is no overhead variation when channelizing a DS-1 versus using a full DS-1 for data. David -- David J. Coulson email: [EMAIL PROTECTED] web: http://www.davidcoulson.net/ phone: (216) 920-3100 / (216) 258-4942 ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users This electronic message transmission, including attachments, is for the exclusive use of the individuals to which this e-mail is addressed and is to be reviewed and used exclusively for authorized company purposes. This transmission may contain proprietary, confidential or privileged information. If you are not the intended recipient of this transmission, you are hereby notified that any use, copying, disclosure, dissemination, distribution or taking of any action in reliance upon the contents of this transmission is strictly prohibited. If you believe you may have received this electronic message in error, please notify the sender immediately by return email and delete or destroy the original message and/or any copy of it from your computer system and/or your files. Thank you. ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
RE: [Asterisk-Users] Should I choose DSL @ 1.5 or a full T1?
Another alternative is to get another connection in addition to DSL for example Cable Connection. That is what we have, our main connection is DSL and we have a backup Cable connection, if one connection goes down you switch to another. It had happened to us in a past DSL went down, 10min. and we were on Cable High Speed. So price wise it is a good arrangement as well: DSL 60CAD Cable Hight Speed (7MB down / 1Mb up) at 80CAD Not to mention the down is limited to restarting your eth0 on your server and update you DNS to new IP if you are running web-server. -- #Joseph On Fri, 2005-06-10 at 23:39 -0400, Peter A. Solomon wrote: -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Barton Fisher Sent: Friday, June 10, 2005 9:27 PM To: Asterisk-Users@lists.digium.com Subject: [Asterisk-Users] Should I choose DSL @ 1.5 or a full T1? I'm looking to expand my bandwidth for my Asterisk PBX. Why should I choose a T1 over DSL for my asterisk server? I found someone offering T1's for $290 a month + Loops or 3 Meg for $561 a month + Loops. Is this a good deal? Thanks Bart ** If your looking at wanting to use QOS or Multiprotocol Label Switching on the same line, then a T is the way to go. You don't mention the equipments though so it's hard to answer your question. How many calls, Data VOIP, Protocol? Tier One ISP? You get what you pay for, it all depends up what you need. ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
[OT] Why not use both? WAS: Re: [Asterisk-Users] Should I choose DSL @ 1.5 or a full T1?
Just a thought but, why not leverage both simultaneously and boost the overall speed? Clients will only notice a slowdown when one or the other goes down, but QOS will usually be better. At least you wouldn't be wasting $80/$60 a month on something not used. Even better is that no intervention would be necessary - both connections were live to begin with so you're simply dropped to 50%. I looked into doing this myself with WiFi and dialup connections in addition to cable, but seeing as my neighbours have cable connects and I don't have a dedicated line for dialup (not to mention the intolerably slow speeds for even one computer) I haven't implemented it. However, I have met quite a few that spread their connects across various DSL, cable, T1, and other frame-relays so it certainly is doable. Regards, Bryce Chidester Rhino Equipment Corp. [EMAIL PROTECTED]SIP: [EMAIL PROTECTED] +1 (480) 940-1826 x305IAX: [EMAIL PROTECTED]/305 On Jun 11, 2005, at 10:42, Joseph wrote: Another alternative is to get another connection in addition to DSL for example Cable Connection. That is what we have, our main connection is DSL and we have a backup Cable connection, if one connection goes down you switch to another. It had happened to us in a past DSL went down, 10min. and we were on Cable High Speed. So price wise it is a good arrangement as well: DSL 60CAD Cable Hight Speed (7MB down / 1Mb up) at 80CAD Not to mention the down is limited to restarting your eth0 on your server and update you DNS to new IP if you are running web-server. -- #Joseph On Fri, 2005-06-10 at 23:39 -0400, Peter A. Solomon wrote: -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Barton Fisher Sent: Friday, June 10, 2005 9:27 PM To: Asterisk-Users@lists.digium.com Subject: [Asterisk-Users] Should I choose DSL @ 1.5 or a full T1? I'm looking to expand my bandwidth for my Asterisk PBX. Why should I choose a T1 over DSL for my asterisk server? I found someone offering T1's for $290 a month + Loops or 3 Meg for $561 a month + Loops. Is this a good deal? Thanks Bart ** If your looking at wanting to use QOS or Multiprotocol Label Switching on the same line, then a T is the way to go. You don't mention the equipments though so it's hard to answer your question. How many calls, Data VOIP, Protocol? Tier One ISP? You get what you pay for, it all depends up what you need. ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [Asterisk-Users] Should I choose DSL @ 1.5 or a full T1?
Barton Fisher wrote: I'm looking to expand my bandwidth for my Asterisk PBX. Why should I choose a T1 over DSL for my asterisk server? I found someone offering T1's for $290 a month + Loops or 3 Meg for $561 a month + Loops. Is this a good deal? Thanks Bart ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users Where are you located? What CLEC gives you a T-1 for $290? I have a 1.5Mbps DSL at home--it works find for VoIP until everyone else get on (after supper) when the usable bandwidth goes way down. ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [Asterisk-Users] Should I choose DSL @ 1.5 or a full T1?
At 08:26 PM 6/10/2005, you wrote: I'm looking to expand my bandwidth for my Asterisk PBX. Why should I choose a T1 over DSL for my asterisk server? Read the SLA (Service Level Agreement) on each. DSL usually doesn't have one. You are buying an oversold connection which might give you the speed you are buying. A full T1 should be 1.5Mbps full duplex. I found someone offering T1's for $290 a month + Loops or 3 Meg for $561 a month + Loops. Is this a good deal? Again, it depends on the company. From a Tier 1 provider with a good SLA it is a good deal. From an over-subscribed CLEC, probably not. Tom Thanks Bart ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [Asterisk-Users] Should I choose DSL @ 1.5 or a full T1?
On Jun 10, 2005, at 6:38 PM, Michael Welter wrote: Barton Fisher wrote: I'm looking to expand my bandwidth for my Asterisk PBX. Why should I choose a T1 over DSL for my asterisk server? I found someone offering T1's for $290 a month + Loops or 3 Meg for $561 a month + Loops. Is this a good deal? Thanks Bart -- -- ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users Where are you located? What CLEC gives you a T-1 for $290? FWIW I provisioned a PRI and a DS-1 for $300 each. Don't know if I'm getting a break for having a voice and a data circuit broken out from one fiber drop, but that's what I'm paying here in Orange County. Also, I had a business cable modem before, which was *allegedly* not shared for business customers (suspicious) and the throughput was a roller coaster, as was the latency. The DS-1 cleared all that up. /rg Robert Goodyear Brand Up LLC http://www.brand-up.com ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
RE: [Asterisk-Users] Should I choose DSL @ 1.5 or a full T1?
SLA! T-1 usually has a Service Level Agreement so if your T-1 goes down they have to fix it ASAP. DSL usually doesnt have this. We had this is come up before. We had 1.5 VDSL from Qwest (which has worked fine for VOIP for us) but we had it go out and it was done for a day. Tried to explain to them that we use VOIP at the office and our phones where down too, they didnt seem to care. When we had trouble with a T-1 from Qwest they where out in 30 min to fix it. The prices are pretty good but it just depend how far you are from the CO. Do they include the CSU/DSU? Rick From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Barton Fisher Sent: Friday, June 10, 2005 6:27 PM To: Asterisk-Users@lists.digium.com Subject: [Asterisk-Users] Should I choose DSL @ 1.5 or a full T1? I'm looking to expand my bandwidth for my Asterisk PBX. Why should I choosea T1 over DSL for my asterisk server? I found someone offering T1's for $290 a month + Loopsor 3 Meg for $561 a month + Loops. Is this a good deal? Thanks Bart ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
RE: [Asterisk-Users] Should I choose DSL @ 1.5 or a full T1?
-Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Barton Fisher Sent: Friday, June 10, 2005 9:27 PM To: Asterisk-Users@lists.digium.com Subject: [Asterisk-Users] Should I choose DSL @ 1.5 or a full T1? I'm looking to expand my bandwidth for my Asterisk PBX. Why should I choose a T1 over DSL for my asterisk server? I found someone offering T1's for $290 a month + Loops or 3 Meg for $561 a month + Loops. Is this a good deal? Thanks Bart ** If your looking at wanting to use QOS or Multiprotocol Label Switching on the same line, then a T is the way to go. You don't mention the equipments though so it's hard to answer your question. How many calls, Data VOIP, Protocol? Tier One ISP? You get what you pay for, it all depends up what you need. ___ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
