Hello, We are using FS to bridge incoming call to an outbound telephone through a gateway provider. The bridge is created OK, but we found that after 3 minutes FS is no longer responding to sip messages from the call out provider. Thus, in case the provider sends sip-Invite message, it gets no response from FS and disconnect the call out leg. Note that FS is also not aware of the Bye message so leg A is still on the line and when it hangs up FS send Bye message to leg B and get as response "Unknown Dialog". I set the siptrace on and see that no packets arriving sofia (when the calling leg hanged up I do see the packets). Also I set all sofia components log level to 7 - this is what was printed out after the call answered: 2013-07-08 10:28:49.661014 [NOTICE] sofia.c:6288 Channel [sofia/external/97249126793] has been answered 2013-07-08 10:28:49.661014 [DEBUG] switch_channel.c:3291 sofia/external/97249126793 process sched_hangup +7199 DJIWR4KKCZB3DGAS7LYLI76IPE@81.201.82.45 alloted_timeout: sched_hangup(+7199 DJIWR4KKCZB3DGAS7LYLI76IPE@81.201.82.45 alloted_timeout) 2013-07-08 10:28:49.661014 [DEBUG] switch_scheduler.c:214 Added task 6 switch_ivr_schedule_hangup (DJIWR4KKCZB3DGAS7LYLI76IPE@81.201.82.45) to run at 1373275728 2013-07-08 10:28:49.681018 [DEBUG] switch_core_session.c:892 Send signal sofia/external/97249126793 [BREAK] 2013-07-08 10:28:49.681018 [DEBUG] switch_core_session.c:892 Send signal sofia/internal/972522977131@voxbone.com [BREAK] nta.c:8950 outgoing_timer_dk() nta: timer D fired, terminate INVITE (46298196) nta.c:8778 _nta_outgoing_timer() nta_outgoing_timer: 0/0 resent, 0/1 tout, 1/1 term, 1/2 free nta.c:8831 outgoing_timer_bf() nta: timer F fired, terminating ACK (46298196) nta.c:8778 _nta_outgoing_timer() nta_outgoing_timer: 0/0 resent, 1/1 tout, 0/0 term, 1/1 free We are running FreeSWITCH Version 1.2.7+git~20130307T054051Z~0a2e713593 (git 0a2e713 2013-03-07 05:40:51Z) On ubuntu release 12.04 Please help. Thanks Zvi Agmon Best regards Zvi Agmon Lexifone email: zvi@lexifone.com Office: +972-4-6817711 Cell: +972-54-4505109