Module: kamailio Branch: master Commit: fcf1d3d778a903852b6e21103a23bd7fd6e3bbc9 URL: https://github.com/kamailio/kamailio/commit/fcf1d3d778a903852b6e21103a23bd7… Author: Daniel-Constantin Mierla &lt;miconda(a)gmail.com&gt; Committer: Daniel-Constantin Mierla &lt;miconda(a)gmail.com&gt; Date: 2018-07-24T16:10:16+02:00 topos: keep original contact in 3xx responses sent out - reported by Andrew Pogrebennyk --- Modified: src/modules/topos/tps_msg.c --- Diff: https://github.com/kamailio/kamailio/commit/fcf1d3d778a903852b6e21103a23bd7… Patch: https://github.com/kamailio/kamailio/commit/fcf1d3d778a903852b6e21103a23bd7… --- diff --git a/src/modules/topos/tps_msg.c b/src/modules/topos/tps_msg.c index 41cb7ef416..b349865262 100644 --- a/src/modules/topos/tps_msg.c +++ b/src/modules/topos/tps_msg.c @@ -1074,12 +1074,17 @@ int tps_response_sent(sip_msg_t *msg) mtsd.direction = direction; tps_remove_headers(msg, HDR_RECORDROUTE_T); - tps_remove_headers(msg, HDR_CONTACT_T); - if(direction==TPS_DIR_DOWNSTREAM) { - tps_reinsert_contact(msg, &stsd, &stsd.as_contact); - } else { - tps_reinsert_contact(msg, &stsd, &stsd.bs_contact); + /* keep contact without updates for redirect responses sent out */ + if(msg->first_line.u.reply.statuscode<300 + || msg->first_line.u.reply.statuscode>=400) { + tps_remove_headers(msg, HDR_CONTACT_T); + + if(direction==TPS_DIR_DOWNSTREAM) { + tps_reinsert_contact(msg, &stsd, &stsd.as_contact); + } else { + tps_reinsert_contact(msg, &stsd, &stsd.bs_contact); + } } tps_reappend_rr(msg, &btsd, &btsd.x_rr);