Joshua, Maybe it's my wrong understanding, but what would be an ACK message as a reply to, say, INVITE? Or what would be an INVITE on behalf of another endpoint? Anyway, both of these (as all other messages, like BYE) are sent without max_fwd header. Please try to reproduce it as described in my first email. Here is the issue in the Asterisk issue tracker: https://issues.asterisk.org/jira/browse/ASTERISK-24807. Regards, Anatoli -----Original Message----- From: pjsip [mailto:pjsip-bounces@xxxxxxxxxxxxxxx] On Behalf Of Joshua Colp Sent: Wednesday, February 18, 2015 13:51 To: pjsip list Subject: Re: Possible bug - missing mandatory field Max-Forwards Anatoli wrote: > Joshua, Harry, > > Thanks for the clarifications. Indeed, res/res_pjsip/config_global.c > manages somehow max_fwd option and it looks like it adds it to all > requests, but not to the responses (simply adding > ast_sip_add_global_response_header("Max-Forwards", max_forwards, 1); > into global_apply() doesn't work). I'm confused by your statement... the Max-Forwards header is for requests, not for responses. -- Joshua Colp Digium, Inc. | Senior Software Developer 445 Jan Davis Drive NW - Huntsville, AL 35806 - US Check us out at: www.digium.com & www.asterisk.org _______________________________________________ Visit our blog: http://blog.pjsip.org pjsip mailing list pjsip at lists.pjsip.org http://lists.pjsip.org/mailman/listinfo/pjsip_lists.pjsip.org