Hello list, I've just upgraded my Freeswitch from 1.4.6 to 1.10.6 and now audio calls that use 3PCC are no longer working. I get this error: [NOTICE] sofia.c:7419 Pre-Answer sofia/sipinterface_1/xxxxxx@sip.commpeak.com! [DEBUG] switch_channel.c:3565 (sofia/sipinterface_1/xxxxxx@sip.commpeak.com) Callstate Change DOWN -> EARLY [DEBUG] switch_ivr_originate.c:3883 Originate Resulted in Success: [sofia/sipinterface_1/xxxxxx@sip.commpeak.com] [DEBUG] switch_channel.c:2130 (sofia/umainterface_1/yyyyyy@sip.zzzz.com) Callstate Change RING_WAIT -> ACTIVE [DEBUG] switch_ivr_bridge.c:1793 (sofia/sipinterface_1/xxxxxx@sip.commpeak.com) State Change CS_CONSUME_MEDIA -> CS_EXCHANGE_MEDIA [DEBUG] switch_core_state_machine.c:585 (sofia/sipinterface_1/xxxxxx@sip.commpeak.com) Running State Change CS_EXCHANGE_MEDIA (Cur 2 Tot 210) [DEBUG] switch_core_state_machine.c:654 (sofia/sipinterface_1/xxxxxx@sip.commpeak.com) State EXCHANGE_MEDIA [DEBUG] mod_sofia.c:656 SOFIA EXCHANGE_MEDIA [ERR] switch_core_media.c:15697 sofia/sipinterface_1/xxxxxx@sip.commpeak.com has no write codec. [NOTICE] switch_core_media.c:15698 Hangup sofia/sipinterface_1/xxxxxx@sip.commpeak.com [CS_EXCHANGE_MEDIA] [INCOMPATIBLE_DESTINATION] On the a_leg the SDP is provided in the usual 3PCC way: Client FS Carrier INVITE (no SDP) -----> <-------- 200 OK (SDP) ACK (SDP) -----------> INVITE (SDP) -----> <-------- 183 (SDP) CANCEL -----------> [Cause: INCOMPATIBLE_DESTINATION] <---------------- BYE If anyone has any insight to share I would be very grateful. Thanks Alan