Re: [Asterisk-Users] Wireless LANs and Asterisk
Mike Meyer wrote: snip Also we had one bridge that seemed to be a week puppy in the litter. It could only muster 60-70% signal strength. It seemed to have problems under all configurations. Finally we positioned it such that it too works well running WEP 64b. I wonder if having 3 wireless bridges in close proximity would have anything to do with the signal strength? I would doubt it though. My memory fails me but for at least one of the wireless standards (802.11a or .11b or .11g or 802.16) there is power control for the rf output of access points. Having several points close together would cause a reduction of power output. I know this isn't a full answer but Don Pobanz ___ 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] Wireless LANs and Asterisk
Has anyone had any experience with wireless LANs and Asterisk? We have and here are my impressions. We configured an Asterisk in the office as a precaution to see how it would work for our own retail customers. Our office is open space, about 800 sq ft. (20x40 area). We use Snom200 and Grandstream SIP phones. Using the latest Linksys wireless access point (WAP54g) and 3 wireless bridges (WET54g), I have found that it works most of the time with WPA encryption on, but will occasionally drop voice (loosing packets). With no encryption on the WLAN it seems to work without a hitch! Using a less CPU intense encryption such as 64bit WEP, things also work fine. There must be too much delay with higher rate encryption. Also we had one bridge that seemed to be a week puppy in the litter. It could only muster 60-70% signal strength. It seemed to have problems under all configurations. Finally we positioned it such that it too works well running WEP 64b. I wonder if having 3 wireless bridges in close proximity would have anything to do with the signal strength? I would doubt it though. Anyone else with other experiences to share regarding wireless LANs and encryption? I'd me interested to hear them. Thanks, Mike Meyer GenDesign Corporation ___ 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] Wireless LANs and Asterisk
Has anyone had any experience with wireless LANs and Asterisk? I have played with the LocustWorld distro but not at length. Basically, it works. Some sort of QoS tagging for SIP, the docs on it are scanty. It has it's own internal encryption. Never tried it in full force, mostly because of extremely poor WiFi device support. The Intersil Prism2 chipset with the rev. that Linux likes is becoming scarce these days. Great concept, needs more work on device support. www.locustworld.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] Wireless LANs and Asterisk
We are a wireless ISP running Asterisk as an IVR in our office. Our office is connected via wireless to our Internet gateway some 4 miles away. I have had 4 calls going at once without and static or dropped packets. We have deployed normal VoIP services to our customers that are a minimum of 2 wireless hops away from the gateway with little or no problems. Wireless bridges should not interfere with each other as long as they can hear each other. --- Kelly D Griffin Network Engineer Tantella Wireless http://tantella.com 800.636.0306 Voice 479.464.8998 Fax -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Mike Meyer Sent: Thursday, February 10, 2005 12:39 PM To: Asterisk Users Group Subject: [Asterisk-Users] Wireless LANs and Asterisk Has anyone had any experience with wireless LANs and Asterisk? We have and here are my impressions. We configured an Asterisk in the office as a precaution to see how it would work for our own retail customers. Our office is open space, about 800 sq ft. (20x40 area). We use Snom200 and Grandstream SIP phones. Using the latest Linksys wireless access point (WAP54g) and 3 wireless bridges (WET54g), I have found that it works most of the time with WPA encryption on, but will occasionally drop voice (loosing packets). With no encryption on the WLAN it seems to work without a hitch! Using a less CPU intense encryption such as 64bit WEP, things also work fine. There must be too much delay with higher rate encryption. Also we had one bridge that seemed to be a week puppy in the litter. It could only muster 60-70% signal strength. It seemed to have problems under all configurations. Finally we positioned it such that it too works well running WEP 64b. I wonder if having 3 wireless bridges in close proximity would have anything to do with the signal strength? I would doubt it though. Anyone else with other experiences to share regarding wireless LANs and encryption? I'd me interested to hear them. Thanks, Mike Meyer GenDesign Corporation ___ 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] Wireless LANs and Asterisk
Mike, I'm using Asterisk over a wireless LAN (Netgear something or the other). I use my desktop as the server and a laptop for remote administration and testing. So far, I haven't had any major problems that I would attribute to the wireless connectivity. Cheers, BeOnIce --- Mike Meyer [EMAIL PROTECTED] wrote: Has anyone had any experience with wireless LANs and Asterisk? We have and here are my impressions. We configured an Asterisk in the office as a precaution to see how it would work for our own retail customers. Our office is open space, about 800 sq ft. (20x40 area). We use Snom200 and Grandstream SIP phones. Using the latest Linksys wireless access point (WAP54g) and 3 wireless bridges (WET54g), I have found that it works most of the time with WPA encryption on, but will occasionally drop voice (loosing packets). With no encryption on the WLAN it seems to work without a hitch! Using a less CPU intense encryption such as 64bit WEP, things also work fine. There must be too much delay with higher rate encryption. Also we had one bridge that seemed to be a week puppy in the litter. It could only muster 60-70% signal strength. It seemed to have problems under all configurations. Finally we positioned it such that it too works well running WEP 64b. I wonder if having 3 wireless bridges in close proximity would have anything to do with the signal strength? I would doubt it though. Anyone else with other experiences to share regarding wireless LANs and encryption? I'd me interested to hear them. Thanks, Mike Meyer GenDesign Corporation ___ 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 __ Do you Yahoo!? Yahoo! Mail - 250MB free storage. Do more. Manage less. http://info.mail.yahoo.com/mail_250 ___ 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] Wireless LANs and Asterisk
On Thu, 2005-02-10 at 12:39 -0600, Mike Meyer wrote: Has anyone had any experience with wireless LANs and Asterisk? We have and here are my impressions. We configured an Asterisk in the office as a precaution to see how it would work for our own retail customers. Our office is open space, about 800 sq ft. (20x40 area). We use Snom200 and Grandstream SIP phones. Using the latest Linksys wireless access point (WAP54g) and 3 wireless bridges (WET54g), I have found that it works most of the time with WPA encryption on, but will occasionally drop voice (loosing packets). With no encryption on the WLAN it seems to work without a hitch! Using a less CPU intense encryption such as 64bit WEP, things also work fine. There must be too much delay with higher rate encryption. Also we had one bridge that seemed to be a week puppy in the litter. It could only muster 60-70% signal strength. It seemed to have problems under all configurations. Finally we positioned it such that it too works well running WEP 64b. I wonder if having 3 wireless bridges in close proximity would have anything to do with the signal strength? I would doubt it though. Anyone else with other experiences to share regarding wireless LANs and encryption? I'd me interested to hear them. I wonder if you wouldn't have been better off price and performance wise to have used the 10 mbit to powerline adapters. For corded phones, you have to be at a power outlet and you could easily have bought a few of them for the same price as one bridge. My recent playing with a wireless bridge semi annoyed me. I had to put a firewall behind it to get more than 1 device to hop the bridge. I do have to admit though that I enjoy only plugging into power for my remote office space now. -- Steven Critchfield [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] Wireless LANs and Asterisk
Hi, My experience: A handfull of concurrent calls, all works fine on 54mbit. Dont try to go beyond that. Specially when your link is not totally 100%. We tried to do 10 calls on a dedicated Conceptronic AP and all fell down. even with the ulaw codec it was not doable for normal conversations. Even disabling web was not the answer, so we took the good old wires again. And another concern: privacy. As you know, WEP is not that strong. And as long as there is no solid encrypted RTP stream everyone with a laptop is able to monitor/record your calls. just my 2 cents -- Michiel van Baak http://lunteren.vanbaak.info [EMAIL PROTECTED] GnuPG key: http://pgp.mit.edu:11371/pks/lookup?op=getsearch=0x7E0B9A2D Two of the most famous products of Berkeley are LSD and BSD. I don't think that this is a coincidence. ___ 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] Wireless LANs and Asterisk
what aspect exactly are you talking about? VoIP capacity over WLANs, codecs, delay, what? mohammed smadi Colin Anderson wrote: Has anyone had any experience with wireless LANs and Asterisk? I have played with the LocustWorld distro but not at length. Basically, it works. Some sort of QoS tagging for SIP, the docs on it are scanty. It has it's own internal encryption. Never tried it in full force, mostly because of extremely poor WiFi device support. The Intersil Prism2 chipset with the rev. that Linux likes is becoming scarce these days. Great concept, needs more work on device support. www.locustworld.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] Wireless LANs and Asterisk
Hi Mike, This is interesting - it's something that I've been considering doing for the Asterisk rollout at my company. We don't have enough Ethernet ports and I'm not thrilled about the expense of re-wiring the place. Have you tried D-Link's dual-channel gear for even more bandwidth, or do you feel that bandwidth is not really a problem? How resilient is 802.11g against interference from other sources? Microwave ovens, gigarange phones, etc. Thanks for reporting your success here to the list, just proves I'm not alone with my funny ideas. ..jurgen On Thu, 10 Feb 2005 12:39:00 -0600, Mike Meyer [EMAIL PROTECTED] wrote: Has anyone had any experience with wireless LANs and Asterisk? We have and here are my impressions. We configured an Asterisk in the office as a precaution to see how it would work for our own retail customers. Our office is open space, about 800 sq ft. (20x40 area). We use Snom200 and Grandstream SIP phones. Using the latest Linksys wireless access point (WAP54g) and 3 wireless bridges (WET54g), I have found that it works most of the time with WPA encryption on, but will occasionally drop voice (loosing packets). With no encryption on the WLAN it seems to work without a hitch! Using a less CPU intense encryption such as 64bit WEP, things also work fine. There must be too much delay with higher rate encryption. Also we had one bridge that seemed to be a week puppy in the litter. It could only muster 60-70% signal strength. It seemed to have problems under all configurations. Finally we positioned it such that it too works well running WEP 64b. I wonder if having 3 wireless bridges in close proximity would have anything to do with the signal strength? I would doubt it though. Anyone else with other experiences to share regarding wireless LANs and encryption? I'd me interested to hear them. Thanks, Mike Meyer GenDesign Corporation ___ 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 -- [EMAIL PROTECTED] is jurgen's gmail address. Visit http://jurgen.ca/ for more yummy goodness. ___ 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] Wireless LANs and Asterisk
The ulaw codec is the heaviest codec there is. Have you tried lighter codecs such as the gsm codec? Erik On Thu, 10 Feb 2005 22:01:01 +0100, Michiel van Baak [EMAIL PROTECTED] wrote: Hi, My experience: A handfull of concurrent calls, all works fine on 54mbit. Dont try to go beyond that. Specially when your link is not totally 100%. We tried to do 10 calls on a dedicated Conceptronic AP and all fell down. even with the ulaw codec it was not doable for normal conversations. Even disabling web was not the answer, so we took the good old wires again. And another concern: privacy. As you know, WEP is not that strong. And as long as there is no solid encrypted RTP stream everyone with a laptop is able to monitor/record your calls. just my 2 cents -- Michiel van Baak http://lunteren.vanbaak.info [EMAIL PROTECTED] GnuPG key: http://pgp.mit.edu:11371/pks/lookup?op=getsearch=0x7E0B9A2D Two of the most famous products of Berkeley are LSD and BSD. I don't think that this is a coincidence. ___ 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] Wireless LANs and Asterisk
On Feb 10, 2005, at 2:39 PM, jurgen wrote: This is interesting - it's something that I've been considering doing for the Asterisk rollout at my company. We don't have enough Ethernet ports and I'm not thrilled about the expense of re-wiring the place. Have you tried D-Link's dual-channel gear for even more bandwidth, or do you feel that bandwidth is not really a problem? How resilient is 802.11g against interference from other sources? Microwave ovens, gigarange phones, etc. Thanks for reporting your success here to the list, just proves I'm not alone with my funny ideas. For what it's worth, I tried using a 7940G with a Linksys WET-11 at home for a few months, and it just wasn't reliable enough to work. The WET11 was only ~40 feet from the base station, but it'd still drop off the net from time to time, and there were tons of random packets dropped. I ended up spending a weekend pulling Cat 5, and life's been a lot better since then. My laptop has similar problems with wireless in the same location, but it's a lot easier to put up with a few lost packets when reading mail or browsing the web--lost VoIP packets stand out like a sore thumb. Scott ___ 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] Wireless LANs and Asterisk
We are deploying an * soultion at the WISP that I freelance for. We are using a tranport that I designed called MATE: Multplexed Audio Transmited over Ethernet MATE is designed to be a better TDMoE. It uses uLAW and huffman compression. We also use custom Customer Premis Equipment that garenties the dilivery of the MATE streams. So far MATE supports 64 channels per stream. Streams are MAC - MAC. Each MATE client note can support 16 streams. Each MATE server node can suport unlimmited streams. The system is still in prototype stage, but will be in full use within about three months. -- Christopher Dobbs ___ 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] Wireless LANs and Asterisk
On Fri, 2005-02-11 at 09:39 +1100, jurgen wrote: Hi Mike, This is interesting - it's something that I've been considering doing for the Asterisk rollout at my company. We don't have enough Ethernet ports and I'm not thrilled about the expense of re-wiring the place. Have you tried D-Link's dual-channel gear for even more bandwidth, or do you feel that bandwidth is not really a problem? How resilient is 802.11g against interference from other sources? Microwave ovens, gigarange phones, etc. Thanks for reporting your success here to the list, just proves I'm not alone with my funny ideas. You also need to think about cost. Most cheap wireless bridges are $50 or more. I bet you could wire 2 phones for the cost of each bridge. Then you don't have the trouble of what happens if you get interference. -- Steven Critchfield [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] Wireless LANs and Asterisk
I am doing this with an ancient WAP-11 in Access Point Client Mode. I have it connected to a Sipura 2000 via a crossover cable. It's been very reliable and clean to talk on. I have a WET-11 on order. If it doesn't do a quality job, back it goes. /edg --On Thursday, February 10, 2005 4:17 PM -0800 Scott Laird [EMAIL PROTECTED] wrote: On Feb 10, 2005, at 2:39 PM, jurgen wrote: This is interesting - it's something that I've been considering doing for the Asterisk rollout at my company. We don't have enough Ethernet ports and I'm not thrilled about the expense of re-wiring the place. Have you tried D-Link's dual-channel gear for even more bandwidth, or do you feel that bandwidth is not really a problem? How resilient is 802.11g against interference from other sources? Microwave ovens, gigarange phones, etc. Thanks for reporting your success here to the list, just proves I'm not alone with my funny ideas. For what it's worth, I tried using a 7940G with a Linksys WET-11 at home for a few months, and it just wasn't reliable enough to work. The WET11 was only ~40 feet from the base station, but it'd still drop off the net from time to time, and there were tons of random packets dropped. I ended up spending a weekend pulling Cat 5, and life's been a lot better since then. My laptop has similar problems with wireless in the same location, but it's a lot easier to put up with a few lost packets when reading mail or browsing the web--lost VoIP packets stand out like a sore thumb. Scott ___ 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
