If you look up the spec for G.726 you will find it supercedes the 722. That said, the 722 is the only ADPCM g code I would use. 726 has other things that I would not use.
----- Original Message ----- From: "Mike Hammett" <[EMAIL PROTECTED]> To: "WISPA General List" <[email protected]> Sent: Tuesday, April 08, 2008 5:18 AM Subject: Re: [WISPA] Femtocells > Polycom's "new" HD voice uses one of the G.722's. > > > ---------- > Mike Hammett > Intelligent Computing Solutions > http://www.ics-il.com > > > ----- Original Message ----- > From: "Chuck McCown" <[EMAIL PROTECTED]> > To: "WISPA General List" <[email protected]> > Sent: Monday, April 07, 2008 10:03 AM > Subject: Re: [WISPA] Femtocells > > >> Pretty sure G.722 is obsolete and has been rolled into G.726 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! 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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