Hi, I am Anam, I am working with pjsip 1.8 for symbian using carbide c++(Version 2.3.0) and s60_3rd_fp1. I successfully run pjsip sample application * symbian_ua_gui* on nokia set. Problem is that i can not hear incoming ring tone for that application. I google and found that there is an example of ringtone generation in pjsua_app.c. I implement that code and compile successfully. Problem is that when incoming call no sound or ring alert generate(void ringback_start(pjsua_call_id call_id). Can any one help regarding this issue. Thanks Anam Note that: Problem with ringtone and dtmf tone only. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20110206/eeb98820/attachment.html>