Hi all, With PJSIP version 1.10, the --no-force-lr option in PJSUA makes the "Route" header to be added to the end of the message just before the "Content-length" header. With loose routing enabled (default mode), the Route header is added just after the Via header. Page 25 of RFC 3261 says that the relative order of the header fields is not significant normally, although required to be on top in places where proxy is used. This will only help the proxy in parsing the SIP messages faster. Is there any problem with this behavior like some implementations of proxy *require* them to be on top? Thanks in advance, Sundar -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20120209/f2ed1f26/attachment.html>