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On Wed, 2004-12-08 at 19:44 -0200, Andre Remor wrote:> Hi, > > I'm looking for a SIP client for Symbian OS... > Someone known one? (free or not)Unless Symbian has branched off of cell phones, I doubt it. SIP on a cell phone right now doesn't make sense. -- Steven Critchfield <critch@basesys.com>
Steven, I think it makes total sense. I'm currently in the process of trying to source a better solution than my treo 600 in order to stay in contact (looking at either ppc or xp with cf/gsm adaptor) Anything that will enable me to answer my home and office and international office lines from a single device using sip/iax over gprs would be a boon in both time and energy and money saving. It's no longer your grandfather's telephone network. Cheers, Dean -----Original Message----- From: asterisk-users-bounces@lists.digium.com [mailto:asterisk-users-bounces@lists.digium.com] On Behalf Of Steven Critchfield Sent: Wednesday, December 08, 2004 4:54 PM To: Asterisk Users Mailing List - Non-Commercial Discussion Subject: Re: [Asterisk-Users] SIP Client for Symbian On Wed, 2004-12-08 at 19:44 -0200, Andre Remor wrote:> Hi, > > I'm looking for a SIP client for Symbian OS... > Someone known one? (free or not)Unless Symbian has branched off of cell phones, I doubt it. SIP on a cell phone right now doesn't make sense. -- Steven Critchfield <critch@basesys.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
>>> I'm looking for a SIP client for Symbian OS... >>> Someone known one? (free or not) >> >> Unless Symbian has branched off of cell phones, I doubt it. SIP on a >> cell phone right now doesn't make sense.> Steven, I think it makes total sense. I'm currently in the process of > trying to source a better solution than my treo 600 in order to stay in > contact (looking at either ppc or xp with cf/gsm adaptor)> Anything that will enable me to answer my home and office and > international office lines from a single device using sip/iax over gprs > would be a boon in both time and energy and money saving. > > It's no longer your grandfather's telephone network.I don't think Steven really meant that it doesn't make sense. I think he meant that it isn't practical. I've read that latency on GPRS connections (even on the faster AT&T EDGE and Sprint VISION networks) is somewhere around 600 ms. I've never personally measured it, but I have used a Treo 600 on the T-Mobile GPRS network, and I can tell you that that latency is WAY too high to make any real phone calls. 200 ms is about the maximum latency you can really deal with on a VoIP call, but even that is really too high. At 600 ms, your voice wouldn't get to the other party forever, and vice-versa. It might be useful as a Nextel-like walkie talkie device, but a real phone conversation would be painful.
Take a look a JSR 180 for MIDP Cellphones. google: j2me sip jsr 180 finds lots of links, including a Nokia reference implementation. But from what I can see it only addresses the SIP protocol itself, not the media streams or how to play them. Tim.
I'm in NY (was in Australia) I have flat rate GPRS and utilize it for streaming audio on a regular basis (shoutcasts etc) $49 a month flat rate gprs through AT&T No if I was still in Sydney I'd continue to use my www.iburst.com.au it just came on the market as I left, wireless dsl speeds, covers almost all of the Sydney region with Canberra this year and 5 other cities to follow next year. No that with the new sony U71 cant be beat. Cheers, Dean -----Original Message----- From: asterisk-users-bounces@lists.digium.com [mailto:asterisk-users-bounces@lists.digium.com] On Behalf Of Steven Critchfield Sent: Wednesday, December 08, 2004 5:38 PM To: Asterisk Users Mailing List - Non-Commercial Discussion Subject: RE: [Asterisk-Users] SIP Client for Symbian On Wed, 2004-12-08 at 17:16 -0500, dean collins wrote:> Steven, I think it makes total sense. I'm currently in the process of > trying to source a better solution than my treo 600 in order to stayin> contact (looking at either ppc or xp with cf/gsm adaptor) > > Anything that will enable me to answer my home and office and > international office lines from a single device using sip/iax overgprs> would be a boon in both time and energy and money saving. > > It's no longer your grandfather's telephone network.Maybe you should experience what is available in the states. I don't see enough bandwidth nor a reasonable cost just yet in gprs service to justify it over plain old celular time. For instance, my GPRS is billed at 1 cent per K or $10.24 per meg. Can you see how quickly a VoIP call would rack up the price of the call? Most cell plans offer free nights and weekends for limited to no extra cost. Data keeps costing no matter the time. Also most cell plans are under 10 cents per minute without needing anything other than a standard phone on the other side. As for the few plans I have seen around for $80 a month to get unlimited network on the phones, I haven't seen that they are capable of the speed needed to get the calls through it. And again, at 10 cents a minute, thats a lot of time calling on the phone. -- Steven Critchfield <critch@basesys.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
Noah, what client were you using on your treo for this 600ms voip call? Cheers, Dean -----Original Message----- From: asterisk-users-bounces@lists.digium.com [mailto:asterisk-users-bounces@lists.digium.com] On Behalf Of Noah Miller Sent: Wednesday, December 08, 2004 5:50 PM To: asterisk-users@lists.digium.com Subject: RE: [Asterisk-Users] SIP Client for Symbian>>> I'm looking for a SIP client for Symbian OS... >>> Someone known one? (free or not) >> >> Unless Symbian has branched off of cell phones, I doubt it. SIP on a >> cell phone right now doesn't make sense.> Steven, I think it makes total sense. I'm currently in the process of > trying to source a better solution than my treo 600 in order to stayin> contact (looking at either ppc or xp with cf/gsm adaptor)> Anything that will enable me to answer my home and office and > international office lines from a single device using sip/iax overgprs> would be a boon in both time and energy and money saving. > > It's no longer your grandfather's telephone network.I don't think Steven really meant that it doesn't make sense. I think he meant that it isn't practical. I've read that latency on GPRS connections (even on the faster AT&T EDGE and Sprint VISION networks) is somewhere around 600 ms. I've never personally measured it, but I have used a Treo 600 on the T-Mobile GPRS network, and I can tell you that that latency is WAY too high to make any real phone calls. 200 ms is about the maximum latency you can really deal with on a VoIP call, but even that is really too high. At 600 ms, your voice wouldn't get to the other party forever, and vice-versa. It might be useful as a Nextel-like walkie talkie device, but a real phone conversation would be painful. _______________________________________________ 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
Hi Dean -> Noah, what client were you using on your treo for this 600ms voip call?Oh, I wasn't using a SIP client (is there one for palm?). Sorry if that was misleading - this is just web browsing and email. Once the connection gets going, it is able to do the 2.2 KB/s that standard GPRS should be able to do, but every time it has to initiate a new connection it's like hitting a brick wall - it takes forever. Very high latency. Maybe I'll get some network tools and measure it sometime. Thanks, Noah