Hi, At times freeswitch hangs inspite of freeswitch is running in background. The version I am using is FreeSWITCH Version 1.2.3 (1.2.3). At the time of freeswitch hang I see below log messages. I feel that 'MSG Thread' is making it hang not sure though. 2013-03-25 15:16:00.194109 [WARNING] sofia_reg.c:1484 SIP auth challenge (REGISTER) on sofia profile 'internal' for [gcmjanssen1@testcloud.com] from ip 86.83.240.9 2013-03-25 15:16:52.074111 [WARNING] switch_event.c:554 Create additional event dispatch thread 2 2013-03-25 15:16:52.374112 [WARNING] switch_event.c:554 Create additional event dispatch thread 3 2013-03-25 15:24:26.164449 [CONSOLE] sofia.c:1602 MSG Thread 2 Started 2013-03-25 15:24:26.164449 [CONSOLE] sofia.c:1602 MSG Thread 1 Started 2013-03-25 15:39:18.254110 [CONSOLE] sofia.c:1602 MSG Thread 3 Started 2013-03-25 15:39:18.254110 [CONSOLE] sofia.c:1602 MSG Thread 4 Started Can anyone please let me know why is it hanging at times and what can be done to resolve it? Many thanks