Hi! I'm developing a Java SIP phone with the pjsua library. The phone is registered to an asterisk server which has a T1 connection to POTS. Whenever I call my softphone from my mobile, I don't hear a ringback on the mobile. In order to rule out asterisk as the fault, I registered the zoiper softphone to it and suddenly the ringback is there. Can someone please explain what I have to do to tell asterisk to play a ring back to the POTS phone? The pjsua-app doesn't have the ringback feature either BTW. Cheers, Florian -- DI Florian Hackenberger florian@hackenberger.at www.hackenberger.at

Hi, Yes, pjsua doesn't send any ringback stream to the peer on ringing and it seems asterisk only send ringback when Asterisk receives stream from callee. I know nothing about configuring Asterisk, I wonder if Astersik could be forced to send ringback without receiving ringback stream from callee, then that could be the solution (for now). This may explain a bit more: http://www.voip-info.org/wiki-Asterisk+bounty+rtp+timing. And please also see http://bugs.digium.com/view.php?id=5374, it seems promising. Regards, nanang On Fri, Sep 12, 2008 at 9:54 PM, Florian Hackenberger <f.hackenberger@chello.at> wrote: > > Hi! > > I'm developing a Java SIP phone with the pjsua library. The phone is > registered to an asterisk server which has a T1 connection to POTS. > Whenever I call my softphone from my mobile, I don't hear a ringback on > the mobile. In order to rule out asterisk as the fault, I registered > the zoiper softphone to it and suddenly the ringback is there. Can > someone please explain what I have to do to tell asterisk to play a > ring back to the POTS phone? The pjsua-app doesn't have the ringback > feature either BTW. > > Cheers, > Florian > -- > DI Florian Hackenberger > florian@hackenberger.at > www.hackenberger.at > > _______________________________________________ > Visit our blog: http://blog.pjsip.org > > pjsip mailing list > pjsip@lists.pjsip.org > http://lists.pjsip.org/mailman/listinfo/pjsip_lists.pjsip.org