Re: [WISPA] Femtocells

2008-04-07 Thread Mike Hammett
I dunno if I'd use anything less than G.711. -- Mike Hammett Intelligent Computing Solutions http://www.ics-il.com - Original Message - From: Chuck McCown - 2 [EMAIL PROTECTED] To: WISPA General List wireless@wispa.org Sent: Sunday, April 06, 2008 11:08 PM Subject: Re: [WISPA]

Re: [WISPA] Femtocells

2008-04-07 Thread Bryan Scott
The cell carriers aren't using G711. I haven't seen how much a UMA call takes up, but I'd bet it's less than the 90K of G.711u. UMA basically encapsulates a GSM stream inside of an IPSEC tunnel. EDGE traffic gets up to 100K+ when surfing or downloading files, so I could see a data stream

Re: [WISPA] Comcast will also be offering up to 50 Mbps

2008-04-07 Thread Tom DeReggi
Yes. If you are doing Gigs of traffic, peering make sense. Maybe even with a few 100mbps, depending on the capacity sold to customers. But there can also be disadvantages with peering with host sites 1) Flooding. When they don't have a cost to you, they are more likely to flood you with

Re: [WISPA] Feasibility of a non-profit WISP

2008-04-07 Thread Tom DeReggi
A lot of people mention using DSL instead of a T1. Rule #1- If your business model doesn't work for full price T1s, ($600 per mon), don't get involved in providing service. In the long run, You'll go crazy trying to support a WISP on a DSL connection. Not from a speed perspective, but from a

Re: [WISPA] Femtocells

2008-04-07 Thread Chuck McCown - 2
G.726 @ 32 kbps should be a lossless ADPCM transcoding of normal PCM G.711. I have listened to many codec and vocoder tests over the years and I could never hear the difference between PCM and ADPCM. I think that the 32k variant conveys all of the same data as uncompressed PCM. Nice thing is

Re: [WISPA] Femtocells

2008-04-07 Thread Chuck McCown - 2
Last I heard, some of the cell carriers are using CELP. That works pretty good but is noticeably worse than the PCM and ADPCM methods. - Original Message - From: Bryan Scott [EMAIL PROTECTED] To: WISPA General List wireless@wispa.org Sent: Monday, April 07, 2008 7:58 AM Subject: Re:

Re: [WISPA] Femtocells

2008-04-07 Thread Mike Hammett
I know. ATT and T-Mobile use GSM (the GSM for wireless is the same as the GSM VoIP codec). I dunno if the CDMA operators translate to anything in the VoIP world or not. I've tested with various codecs and I may use G.729 at some point, but for now I'm limiting myself to G.711 and G.722 once

Re: [WISPA] Comcast will also be offering up to 50 Mbps

2008-04-07 Thread Mike Hammett
Well right. With transit so cheap these days, I'd look at it more as an increase in quality than a decrease in expenses. -- Mike Hammett Intelligent Computing Solutions http://www.ics-il.com - Original Message - From: Tom DeReggi [EMAIL PROTECTED] To: WISPA General List

Re: [WISPA] Femtocells

2008-04-07 Thread Chuck McCown
Pretty sure G.722 is obsolete and has been rolled into G.726 Most GSM systems use a variant of CELP, ACELP I think. G.729 I think. All of the CELP methods suck when compared to G.711/22/26 PCM/ADPCM methods. - Original Message - From: Mike Hammett [EMAIL PROTECTED] To: WISPA General

Re: [WISPA] Femtocells

2008-04-07 Thread Chuck McCown
I guess I should qualify that a bit. They suck when you are comparing voice quality. They are superior when delivering arguably acceptable voice communication with a minimum of bandwidth. - Original Message - From: Chuck McCown [EMAIL PROTECTED] To: WISPA General List

[WISPA] Crimper recommendations

2008-04-07 Thread Jason Hensley
Hi all, Looking for recommendations for a GOOD set of RJ45 crimpers. Brand and model would be great. Thanks! WISPA Wants You! Join today! http://signup.wispa.org/

Re: [WISPA] Crimper recommendations

2008-04-07 Thread Jeromie Reeves
Paladin 8000 multi die crimper. Used to 5 or 6 sets for it, from DSub to RJ11/6/45. Some of the dies are off brand that I picked up at a local flee market. The RJ45 came with it, cost about $60 shipped. I will only use clam shell from the nose crimpers, every single side crimper I have used made

Re: [WISPA] Femtocells

2008-04-07 Thread John Thomas
G.711 *can* support FAXing, otherwise g.729 is very common for voice. John Mike Hammett wrote: I know. ATT and T-Mobile use GSM (the GSM for wireless is the same as the GSM VoIP codec). I dunno if the CDMA operators translate to anything in the VoIP world or not. I've tested with

Re: [WISPA] Femtocells

2008-04-07 Thread CHUCK PROFITO
John, please explain *can* or what is best for faxing? -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of John Thomas Sent: Monday, April 07, 2008 12:59 PM To: WISPA General List Subject: Re: [WISPA] Femtocells G.711 *can* support FAXing, otherwise g.729 is

[WISPA] [Fwd: [WISPA Promotion] [Fwd: Re: [Fwd: [WISPA Members] THE GENESIS OF UNLICENSED WIRELESS POLICY - An Information Economy Project Conference]]]

2008-04-07 Thread Martha Huizenga
Sorry sent this to the promotions committeeoops! Just wanted everyone to know that Matt and I went to this conference on Friday that was put out by Jack Unger a couple of weeks ago. It was very interesting, a bit more academic than the usual conference, but well worth it. We met Tim

Re: [WISPA] Femtocells

2008-04-07 Thread Chuck McCown - 2
g.729 should from a mathematic point of view be able to do everything g.711 does. - Original Message - From: John Thomas [EMAIL PROTECTED] To: WISPA General List wireless@wispa.org Sent: Monday, April 07, 2008 1:58 PM Subject: Re: [WISPA] Femtocells G.711 *can* support FAXing,

[WISPA] uptime

2008-04-07 Thread Travis Johnson
Hi, I just had to get into a Cisco 3512XL switch that we have installed in a commercial office building. While there, I happened to notice: Taylors uptime is 4 years, 13 weeks, 2 days, 2 hours, 36 minutes That's pretty amazing considering it's only on a BackUPS 350 (about 20 minutes of

Re: [WISPA] uptime

2008-04-07 Thread Patrick Shoemaker
Not as impressive but here's my record: Model CoreBuilder 3500 (rev AA) System Up Time 2 Years 254 Days 22 Hours 18 Minutes Travis Johnson wrote: Hi, I just had to get into a Cisco 3512XL switch that we have installed in a commercial office building. While there, I happened to

Re: [WISPA] uptime

2008-04-07 Thread D. Ryan Spott
Mac SE/30 running netBSD 3+ years of service echoing uptime: :MM:DD:MM:SS every few seconds. :D I am such a geek! ryan On Apr 7, 2008, at 6:12 PM, Travis Johnson wrote: Hi, I just had to get into a Cisco 3512XL switch that we have installed in a commercial office building. While