This is most likely due to limitations of your mobile provider. Most providers do not allow you to use GPRS/EDGE/HSDPA connections together with SIP, RTP (because this offends their business models). Regards Karthik Babu schrieb: > Hello Nanang , > > I have just noticed that the registration is failing and could not use > the app using GPRS (tested on both e61 and n95 ) . > > > Can you please advise ? > > > > > > > -- > Karthik > ------------------------------------------------------------------------ > > _______________________________________________ > Visit our blog: http://blog.pjsip.org > > pjsip mailing list > pjsip at lists.pjsip.org > http://lists.pjsip.org/mailman/listinfo/pjsip_lists.pjsip.org >