diff --git a/channels/chan_sip.c b/channels/chan_sip.c
index 2bdd64da6c7a5f807d751f4a58ada8ef0b1e7f3d..1ea54538b4700c6922be54c8d5b50b2a98cf687f 100644
--- a/channels/chan_sip.c
+++ b/channels/chan_sip.c
@@ -16259,6 +16259,9 @@ static enum check_auth_result check_peer_ok(struct sip_pvt *p, char *of,
 		if (!ast_strlen_zero(peer->messagecontext)) {
 			ast_string_field_set(p, messagecontext, peer->messagecontext);
 		}
+		if (!ast_strlen_zero(peer->mwi_from)) {
+			ast_string_field_set(p, mwi_from, peer->mwi_from);
+		}
 		ast_string_field_set(p, peersecret, peer->secret);
 		ast_string_field_set(p, peermd5secret, peer->md5secret);
 		ast_string_field_set(p, language, peer->language);