I am making a sip client over Iphone and i am using pjsip library to develop sip client. Every thing is going fine but there is some problem voice communication, means i can hear the voice of oher hand side user but other side they did not get my voice. there is one way communication. I am using most of thing default like codec in speex and etc. please tell me, if you need some more input from my side. please help me. Thanks in advance. Thanks & Regards Andy Mishra -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20121020/5b0849eb/attachment-0001.html>