CF, I think the best idea is to wait till it comes out and run etheral. This would be great for when I travel out of the US. (Yes I can use my network) but why not use some else's ant not pay ;) Also I wonder if Hotel's out of the US will start putting these up for their guests.
----- Original Message ----- From: "C F" <[EMAIL PROTECTED]> To: "Asterisk Users Mailing List - Non-Commercial Discussion" <[email protected]> Sent: Friday, September 21, 2007 8:10 PM Subject: Re: [asterisk-users] OT: Samsung Sprint CDMAoIP > Does that imply that sip is not VOIP since it can be used for video? > > On 9/21/07, Eric Chamberlain <[EMAIL PROTECTED]> wrote: >> >> > -----Original Message----- >> > From: [EMAIL PROTECTED] [mailto:asterisk-users- >> > [EMAIL PROTECTED] On Behalf Of C F >> > Sent: Friday, September 21, 2007 7:34 AM >> > To: Asterisk Users Mailing List - Non-Commercial Discussion >> > Subject: Re: [asterisk-users] OT: Samsung Sprint CDMAoIP >> > >> > On 9/21/07, Alexander Lopez <[EMAIL PROTECTED]> wrote: >> > > >> > > >> > > Snip headers >> > > > On 9/20/07, Jason Parker <[EMAIL PROTECTED]> wrote: >> > > > > C F wrote: >> > > > > > AFAIK, the calls are free when you use it thru that device. >> > > > > > Sprint >> > > > > > however charges $15 a month per phone or $30 for family plan. >> > > While I >> > > > > > agree that sprint should pay me for this, it's not as bad. >> > > T-mobile on >> > > > > > the other hand, does the same thing with wifi enabled phones, >> > > > > > it >> > > > > > doesn't cost extra, and is completely free. >> > > > > > >> > > > > >> > > > > If you're referring to T-Mobile's "[EMAIL PROTECTED]" service, it's >> > > actually >> > > > $20 >> > > > > per month, per line on the account (unless it's changed very >> > > recently). >> > > > > >> > > > >> > > > I don't know about that, could be you are right. >> > > > >> > > > > As far as how it works on T-Mobile, I recently had some questions >> > > > answered by >> > > > > them about that.. They use UMA over wifi, and it does automatic >> > > > switching >> > > > > between the wifi and the gsm towers (ie; your call stays up). >> > > > >> > > > The same goes for Sprint. >> > > > >> > > > > >> > > > > Quote from the tech I talked to: >> > > > > "[EMAIL PROTECTED] does not use a VoIP protocol, as the voice data is >> > > > > transferred from the Internet directly to our UMA Gateway and >> > > > > then >> > > > > through our regular Mobile Switching Centers." >> > > > >> > > > I know it's a quote from the tech, but isn't it voice packets that >> > > > travels over the Internet (a packet switched network) instead of >> > > > over >> > > > GSM (TDM switched network) which makes that statement incorrect? It >> > > > doesn't matter what the higher level protocol is, it's still VoIP. >> > > > >> > > Your right it is "STILL VoIP" by definition but its not... >> > >> > Yes it is, not only in definition but in practice as well. See below. >> > >> > > >> > > From: http://www.newstep.com/our%20market/technologies.asp >> > > >> > > Gateway-based Solutions >> > > By placing special gateways at the edge of a GSM network, Unlicensed >> > > Mobile Access (UMA) allows users with dual-mode handsets to access >> > > mobile phone services via both cellular and Wi-Fi links. In cellular >> > > mode, voice traffic travels over standard GSM radio waves. In Wi-Fi >> > > mode, an IP tunnel carries GSM traffic across the enterprise network >> > > and/or the Internet to a UMA gateway. The gateway looks like a base >> > > station controller (BSC) to the cellular network, so when a handset >> > > moves between cellular and Wi-Fi coverage, the network handles it as >> > > an >> > > ordinary BSC-to-BSC handoff. MSC emulation-also known as IP VLR-is >> > > similar to UMA, except that the gateway mimics a mobile switching >> > > center >> > > (MSC) and a visitor location register (VLR) instead of a BSC. >> > > >> > > Intimately tied to cellular technology and dual-mode handsets, >> > > gateway-based solutions provide access only to mobile network >> > > services >> > > and can be deployed only by facilities-based mobile network >> > > operators. >> > > Moreover, gateway-based solutions cannot leverage the full >> > > capabilities >> > > of IP and VoIP because all voice traffic remains in TDM format. >> > > Service >> > >> > When the above line is taken out of context (which is what I >> > understood from your response) then it could be said that it suggests >> > it's not VoIP. But really all the paper is saying is that to the >> > network (GSM) it doesn't look like VoIP but like TDM, since it's in >> > that format, and can therefore not take advantage of most VoIP >> > features. But it's still VoIP. >> > >> >> It's GSM tunneled over IP, some of the data traffic may or may not be >> voice >> traffic in the GSM traffic in the IP tunnel. Calling it VoIP would be a >> stretch. >> >> -- >> Eric Chamberlain, CISSP >> Chief Technical Officer >> Voxilla - http://voxilla.com/ >> >> >> >> >> _______________________________________________ >> >> Sign up now for AstriCon 2007! September 25-28th. >> http://www.astricon.net/ >> >> --Bandwidth and Colocation Provided by http://www.api-digital.com-- >> >> asterisk-users mailing list >> To UNSUBSCRIBE or update options visit: >> http://lists.digium.com/mailman/listinfo/asterisk-users >> > > _______________________________________________ > > Sign up now for AstriCon 2007! September 25-28th. > http://www.astricon.net/ > > --Bandwidth and Colocation Provided by http://www.api-digital.com-- > > asterisk-users mailing list > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users > _______________________________________________ Sign up now for AstriCon 2007! September 25-28th. http://www.astricon.net/ --Bandwidth and Colocation Provided by http://www.api-digital.com-- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
