Hello to all, I encoutner a problem required me to send text to the caller after VoIP call success. I have try pjsua_call_send_im but not success but i haven't try pjsua_im_send. How the VoIP IM works in SIP ? My purpose is to sent text to caller after the call is connected. can you tell me to use or sample code is helpful? Thanks. -- Linux -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20100503/4149d75f/attachment.html>