From 8f65d91dfd1509a84d84cdc977d66c52ad925fc7 Mon Sep 17 00:00:00 2001
From: Alexander Traud <pabstraud@compuserve.com>
Date: Fri, 13 Oct 2017 16:43:12 +0200
Subject: [PATCH] res_pjsip_session: Rewrite o= with external_media_address.

PJSIP allows a domain name as external_media_address. This allows chan_pjsip to
be used behind a NAT with changing IP addresses. The IP address of that domain
is resolved to the c= line already. This change sets also the o= line to that
domain.

ASTERISK-27341 #close

Change-Id: I690163b6e762042ec38b3995aa5c9bea909d8ec4
---
 res/res_pjsip_session.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/res/res_pjsip_session.c b/res/res_pjsip_session.c
index d8789ae52e..37ff531050 100644
--- a/res/res_pjsip_session.c
+++ b/res/res_pjsip_session.c
@@ -4006,6 +4006,7 @@ static void session_outgoing_nat_hook(pjsip_tx_data *tdata, struct ast_sip_trans
 		if (ast_sip_transport_is_local(transport_state, &our_sdp_addr) || !transport_state->localnet) {
 			ast_debug(5, "Setting external media address to %s\n", ast_sockaddr_stringify_host(&transport_state->external_media_address));
 			pj_strdup2(tdata->pool, &sdp->conn->addr, ast_sockaddr_stringify_host(&transport_state->external_media_address));
+			pj_strdup2(tdata->pool, &sdp->origin.addr, transport->external_media_address);
 		}
 	}
 
-- 
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