diff -ur asterisk-13.7.0-orig/res/res_pjsip_outbound_publish.c asterisk-13.7.0/res/res_pjsip_outbound_publish.c --- asterisk-13.7.0-orig/res/res_pjsip_outbound_publish.c 2016-01-15 14:01:49.000000000 -0500 +++ asterisk-13.7.0/res/res_pjsip_outbound_publish.c 2016-02-05 13:20:26.992935223 -0500 @@ -598,6 +598,8 @@ int res; if (!client->client) { + ast_debug(2, "Could not send message on outbound publish '%s'\n", + ast_sorcery_object_get_id(client->publish)); return -1; }