Re: GPRS while ringing?
Nils Faerber wrote: Joel Newkirk schrieb: Is it possible and feasible to establish a brief (3-5 seconds?) GPRS connection when ringing an incoming call? I've been thinking about callerid name lookups. I guess not. First of all GPRS connection setup can take longer than this - basically the GPRS data connection is done using PPP. Second, though not being a GSM expert, I think that voice call is not possible during GPRS sessions. This would for me also mean that during call signalling GPRS cannot be established - either the GPRS or teh voice call will fail then. on my SE Z710 the blue and green globe that indicates GPRS connection goes gray on a call or similar. as in, it maintains the connection internally, but no data can be be exchanged oveer it. the data while talking is supposedly one of the benefits of the UMTS system as its needed to do video calls. funny thing is that if they instead went for transporting both the call and the video as a single data stream (IP anyone?) the problem would be gone, even without having a whole new phone system in place. but then i guess it would be harder for the network operators to bill you for your use... ___ OpenMoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: GPRS while ringing?
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 It's not as bad. It's not "modern" phones that can do, it's a disappearing small number of phones, most new phones are class B. Real class A phones are expensive, as they need two seperate radios :( Andreas Mikko Rauhala wrote: > ma, 2007-05-07 kello 11:53 +0400, Nikita Melnikov kirjoitti: >> Not really, as far as i _heard_. I got told that u can accept incoming >> calls not dropping gprs connection on modern phones. Didn't test it >> myself, tho, because i own some really oldschool Ericsson phone ;) > > That's spesified as GPRS class A, and I suppose some phones have it. Neo > uses a class B GSM/GPRS chip (according to Sean's vague recollection at > a seminar ;), which will have to suspend GPRS for voice/SMS, though. > -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.2 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFGPyyiHJdudm4KnO0RAm8nAJ4irvF1zv//raKpQyZmS3mIL8wbXQCgkNjo +qh7KiiNzRCuY3N4AvFyCxQ= =zUQu -END PGP SIGNATURE- ___ OpenMoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: GPRS while ringing?
On Mon, May 07, 2007 at 12:26:58PM +0300, Mikko Rauhala wrote: > ma, 2007-05-07 kello 11:53 +0400, Nikita Melnikov kirjoitti: > > Not really, as far as i _heard_. I got told that u can accept incoming > > calls not dropping gprs connection on modern phones. Didn't test it > > myself, tho, because i own some really oldschool Ericsson phone ;) > > That's spesified as GPRS class A, and I suppose some phones have it. Neo > uses a class B GSM/GPRS chip (according to Sean's vague recollection at > a seminar ;), which will have to suspend GPRS for voice/SMS, though. Ah, thanks for clearing the situation :) > > -- > Mikko Rauhala - [EMAIL PROTECTED] - http://www.iki.fi/mjr/> > Transhumanist - WTA member - http://www.transhumanism.org/> > Singularitarian - SIAI supporter - http://www.singinst.org/> > > > ___ > OpenMoko community mailing list > community@lists.openmoko.org > http://lists.openmoko.org/mailman/listinfo/community -- Nikita Melnikov ___ OpenMoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: GPRS while ringing?
ma, 2007-05-07 kello 11:53 +0400, Nikita Melnikov kirjoitti: > Not really, as far as i _heard_. I got told that u can accept incoming > calls not dropping gprs connection on modern phones. Didn't test it > myself, tho, because i own some really oldschool Ericsson phone ;) That's spesified as GPRS class A, and I suppose some phones have it. Neo uses a class B GSM/GPRS chip (according to Sean's vague recollection at a seminar ;), which will have to suspend GPRS for voice/SMS, though. -- Mikko Rauhala - [EMAIL PROTECTED] - http://www.iki.fi/mjr/> Transhumanist - WTA member - http://www.transhumanism.org/> Singularitarian - SIAI supporter - http://www.singinst.org/> ___ OpenMoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: GPRS while ringing?
On Mon, May 07, 2007 at 09:38:59AM +0200, Nils Faerber wrote: > Joel Newkirk schrieb: > > Is it possible and feasible to establish a brief (3-5 seconds?) GPRS > > connection when ringing an incoming call? > > > > I've been thinking about callerid name lookups. > > I guess not. > First of all GPRS connection setup can take longer than this - basically > the GPRS data connection is done using PPP. > Second, though not being a GSM expert, I think that voice call is not > possible during GPRS sessions. This would for me also mean that during > call signalling GPRS cannot be established - either the GPRS or teh > voice call will fail then. Not really, as far as i _heard_. I got told that u can accept incoming calls not dropping gprs connection on modern phones. Didn't test it myself, tho, because i own some really oldschool Ericsson phone ;) > > j > Cheers > nils faerber > > -- > kernel concepts GbRTel: +49-271-771091-12 > Sieghuetter Hauptweg 48Fax: +49-271-771091-19 > D-57072 Siegen Mob: +49-176-21024535 > -- > > ___ > OpenMoko community mailing list > community@lists.openmoko.org > http://lists.openmoko.org/mailman/listinfo/community -- Nikita Melnikov ___ OpenMoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: GPRS while ringing?
Joel Newkirk schrieb: > Is it possible and feasible to establish a brief (3-5 seconds?) GPRS > connection when ringing an incoming call? > > I've been thinking about callerid name lookups. I guess not. First of all GPRS connection setup can take longer than this - basically the GPRS data connection is done using PPP. Second, though not being a GSM expert, I think that voice call is not possible during GPRS sessions. This would for me also mean that during call signalling GPRS cannot be established - either the GPRS or teh voice call will fail then. > j Cheers nils faerber -- kernel concepts GbRTel: +49-271-771091-12 Sieghuetter Hauptweg 48Fax: +49-271-771091-19 D-57072 Siegen Mob: +49-176-21024535 -- signature.asc Description: OpenPGP digital signature ___ OpenMoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
GPRS while ringing?
Is it possible and feasible to establish a brief (3-5 seconds?) GPRS connection when ringing an incoming call? I've been thinking about callerid name lookups. j ___ OpenMoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
