Pretty sure G.722 is obsolete and has been rolled into G.726 Most GSM systems use a variant of CELP, ACELP I think.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 List" <[email protected]> Sent: Monday, April 07, 2008 8:53 AM Subject: Re: [WISPA] Femtocells >I know. AT&T 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 I get some business > customers interested in it. > > > ---------- > Mike Hammett > Intelligent Computing Solutions > http://www.ics-il.com > > > ----- Original Message ----- > From: "Bryan Scott" <[EMAIL PROTECTED]> > To: "WISPA General List" <[email protected]> > Sent: Monday, April 07, 2008 8:58 AM > Subject: Re: [WISPA] Femtocells > > >> 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 over UMA going up to 150-200K. >> >> If you're talking EVDO data transfers via a femtocell, it could get up >> to a couple megabits (whatever they're touting EVDO's capability as, >> plus some overhead for security). >> >> -- Bryan >> >> Mike Hammett wrote: >>> 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" <[email protected]> >>> Sent: Sunday, April 06, 2008 11:08 PM >>> Subject: Re: [WISPA] Femtocells >>> >>> >>>> G.711 require 64kbps plus overhead. Normally about 90 kbps. But there >>>> are >>>> lossless compression methods that can cut this in about half. >>>> ----- Original Message ----- >>>> From: "Marty Dougherty" <[EMAIL PROTECTED]> >>>> To: "'WISPA General List'" <[email protected]> >>>> Sent: Sunday, April 06, 2008 8:24 PM >>>> Subject: Re: [WISPA] Femtocells >>>> >>>> >>>>> Does anyone know how much BW a call will require? >>>>> >>>>> Marty >>>>> >>>>> -----Original Message----- >>>>> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] >>>>> On >>>>> Behalf Of Gino Villarini >>>>> Sent: Friday, April 04, 2008 5:57 AM >>>>> To: WISPA General List >>>>> Subject: Re: [WISPA] Femtocells >>>>> >>>>> Hmm I see better opportunity going to the Cellco directly and offer >>>>> them >>>>> the >>>>> service, so that they do a bundle to the end user... Internet - >>>>> Femtocell >>>>> >>>>> And you make and arrangement with the cellco to deliver the traffic >>>>> directly >>>>> to them instead of going to the internet...Saving them some $$ On >>>>> Internet >>>>> Bandwidth and also providing a lower latency link to them!!! >>>>> >>>>> >>>>> ... maybe this is the next step beyond voip... >>>>> >>>>> Gino A. Villarini >>>>> [EMAIL PROTECTED] >>>>> Aeronet Wireless Broadband Corp. >>>>> tel 787.273.4143 fax 787.273.4145 >>>>> >>>>> -----Original Message----- >>>>> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] >>>>> On >>>>> Behalf Of George Rogato >>>>> Sent: Friday, April 04, 2008 6:30 AM >>>>> To: WISPA General List >>>>> Subject: [WISPA] Femtocells >>>>> >>>>> femtocells >>>>> >>>>> This is a great innovation that can help wisps gain market share. >>>>> >>>>> With these femtocells, the cell phone works in the house so the >>>>> consumer >>>>> >>>>> doesn't need to have an extra land line. >>>>> The customer is probably paying 80.00 or so for their dsl - telephone >>>>> line. >>>>> No land line needed for us wisps, the customer's 80.00 telco package >>>>> is >>>>> now >>>>> in "play". Maybe they want to trade it in for a faster and probably >>>>> lesser >>>>> expensive internet connection. >>>>> >>>>> It's a good opportunity for us, or the cable company. >>>>> >>>>> http://news.yahoo.com/s/ap/wireless_show_femtocells;_ylt=ArOpXSwLh8fh4Jp >>>>> nL.VHQpsjtBAF >>>>> >>>>> Verizon Wireless is joining Sprint Nextel Corp. in jumping on the >>>>> latest >>>>> >>>>> craze in the wireless world: little boxes called femtocells that boost >>>>> cell-phone coverage in subscribers' homes. >>>>> >>>>> >>>>> >>>>> ------------------------------------------------------------------------ >>>>> -------- >>>>> WISPA Wants You! Join today! >>>>> http://signup.wispa.org/ >>>>> ------------------------------------------------------------------------ >>>>> -------- >>>>> >>>>> WISPA Wireless List: [email protected] >>>>> >>>>> Subscribe/Unsubscribe: >>>>> http://lists.wispa.org/mailman/listinfo/wireless >>>>> >>>>> Archives: http://lists.wispa.org/pipermail/wireless/ >>>>> >>>>> >>>>> ---------------------------------------------------------------------------- >>>>> ---- >>>>> WISPA Wants You! Join today! >>>>> http://signup.wispa.org/ >>>>> ---------------------------------------------------------------------------- >>>>> ---- >>>>> >>>>> WISPA Wireless List: [email protected] >>>>> >>>>> Subscribe/Unsubscribe: >>>>> http://lists.wispa.org/mailman/listinfo/wireless >>>>> >>>>> Archives: http://lists.wispa.org/pipermail/wireless/ >>>>> >>>>> >>>>> >>>>> -------------------------------------------------------------------------------- >>>>> WISPA Wants You! 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Join today! >>> http://signup.wispa.org/ >>> -------------------------------------------------------------------------------- >>> >>> WISPA Wireless List: [email protected] >>> >>> Subscribe/Unsubscribe: >>> http://lists.wispa.org/mailman/listinfo/wireless >>> >>> Archives: http://lists.wispa.org/pipermail/wireless/ >> >> >> >> -------------------------------------------------------------------------------- >> WISPA Wants You! Join today! >> http://signup.wispa.org/ >> -------------------------------------------------------------------------------- >> >> WISPA Wireless List: [email protected] >> >> Subscribe/Unsubscribe: >> http://lists.wispa.org/mailman/listinfo/wireless >> >> Archives: http://lists.wispa.org/pipermail/wireless/ >> > > > > -------------------------------------------------------------------------------- > WISPA Wants You! 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