Hello guys, Is there any way the I can manually edit the SIP messages before actually sending them? Maybe a callback function? I haven't found a solution in the PJSUA2 API, but I'm sure that it is solvable with the PJSIP API. Any kind of help would be appreciated. Best regards, Steve B -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20150723/bb6cb0bf/attachment.html>