diff --git a/channels/chan_sip.c b/channels/chan_sip.c index 2abec0b2bb..435c8520c8 100644 --- a/channels/chan_sip.c +++ b/channels/chan_sip.c @@ -3164,6 +3164,9 @@ static void ast_sip_ouraddrfor(const struct ast_sockaddr *them, struct ast_socka if (!ast_sockaddr_is_any(&bindaddr)) { ast_sockaddr_copy(us, &bindaddr); } + if (!ast_sockaddr_port(us)) { + ast_sockaddr_set_port(us, ast_sockaddr_port(&bindaddr)); + } } } else if (!ast_sockaddr_is_any(&bindaddr)) { ast_sockaddr_copy(us, &bindaddr);