Hi, there are already a few threads regarding this, but no solution. I’ve created a patch for a 16.5.0 codebase, which enables settings contact_host for a peer. The problem is, that host part in Contact: header gets rewriten in two more files: res/res_pjsip/pjsip_message_filter.c res/res_pjsip_n…

You might setup a new transport configuration in pjsip.conf to avoid the res_pjsip_nat.c comment patch.

PJSIP FQDN in Contact header - Microsoft direct routing - #3 by system - Asterisk SIP

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