?Hi, ?? PJSIP doesn't print the port in from and to headers even when the port is explicitly specified. This seems to be intentional pjsip/src/pjsip/sip_uri.c line 276-278 /* Only print port if it is explicitly specified. * Port is not allowed in To and From header. */ I couldn't find the relevant section in the rfc which prohibits port in from and to headers. The behavior causes an issue where the domain proxy is listening on a non standard port and transfer with replaces is attempted on an existing call. The issue occurs because the referred-to uri doesn't have the non-standard port in the uri and the subsequent invite(for replace) fails as the proxy is only listening on a non-standard port and not 5060. Thanks, Amit
