Thank to Frank and Steve for your answers My understanding is that you need to place on operator premise an equipment that checks first the availability of the user on VoIP. If not registered, it's routing the call through the cellular network. Is it correct ?
But during the handover (wifi to GSM), how does it works ? Is it the operator that initiates a call on the GSM network. If so, I guess the mobile device need to have some logic to seamlessly switch between the 2 channels, isn't it ? If it's the mobile device that initiates the call to the GSM network, it will also require some logic to do that. So my question is, is the handover something standard in every mobile device supporting GSM and VoIP or do you require an extra piece of software to do the trick ? Is this principal applies to every "transport technology", I mean VoIP through WIfi or VoIP over 3G ? Thanks in advance Patrick On Sat, Oct 10, 2009 at 06:57, Frank Bulk <frnk...@iname.com> wrote: > There are two commercial vendors that come to mind, namely DiVitas and > Agito. > > Frank > > -----Original Message----- > From: asterisk-users-boun...@lists.digium.com > [mailto:asterisk-users-boun...@lists.digium.com] On Behalf Of Patrick > Sent: Friday, October 09, 2009 8:15 PM > To: Asterisk Users Mailing List - Non-Commercial Discussion > Subject: [asterisk-users] Wifi GSM handover > > Hello guys, > > I'm wondering what is required and involved in order to provide a > wifi/GSM handover to customers. > After googling I haven't found any product/vendor. Do you have an idea ? > > Thanks in advance > Patrick > > _______________________________________________ > -- Bandwidth and Colocation Provided by http://www.api-digital.com -- > > AstriCon 2009 - October 13 - 15 Phoenix, Arizona > Register Now: http://www.astricon.net > > asterisk-users mailing list > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users > > > _______________________________________________ > -- Bandwidth and Colocation Provided by http://www.api-digital.com -- > > AstriCon 2009 - October 13 - 15 Phoenix, Arizona > Register Now: http://www.astricon.net > > asterisk-users mailing list > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users > _______________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- AstriCon 2009 - October 13 - 15 Phoenix, Arizona Register Now: http://www.astricon.net asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users