hello we do see some new (interfering) behavior after updating to trunk (revision 16456) the call gets up normal - normal invite to sip endpoint (OpenCom 130, OpenCom X320) - we get 100 trying back - we get 180 ringing back + rtp - we get 200 ok - our freeswitch sends an ack message - after that freeswitch starts sending UPDATE messages none of these UPDATE message is answered by the sip endpoint, so the call gets dropped after about 30s. how can this UPDATE messages be disabled. i didn't find any option for that. this is also not nat problem (official ip on the sip device) please advise br -- Ing. Christian Löschenkohl Technische Leitung, Forschung & Entwicklung VoIP xpirio Telekommunikation & Service GmbH Lakeside B04 9020 Klagenfurt Austria T +43 (0) 5 77 11 - 1000 F +43 (0) 5 77 11 - 1002 E christian.loeschenkohl@xpirio.com