Hi Nanang, I got it working now ! Thank you and Benny for great work! When I make the call, I can get full conversation, everything is perfect! But when I receive a all, the E61 don't have ring tone and no sound on E61's earpiece(I can't hear anything from E61). Also, the call expired very quick. Any instructions would be really appreciate! Thanks a mill, Sen -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20080531/2e0fa81a/attachment.html