Hello Marek Thanks for your reply. The problem if the 2nd server got restart or i restart the asterisk i got the following msg on the asterisk console *CLI> [May 5 01:41:07] NOTICE[4559]: l4isup.c:1338 t22_timeout: T22 timeout (No "circuit group reset acknowledge" from peer) CIC=32. [May 5 01:41:37] NOTICE[4559]: l4isup.c:1338 t22_timeout: T22 timeout (No "circuit group reset acknowledge" from peer) CIC=32. [May 5 01:42:07] NOTICE[4559]: l4isup.c:1338 t22_timeout: T22 timeout (No "circuit group reset acknowledge" from peer) CIC=32. CIC 32 Idle Reset pending CIC 33 Idle Reset pending at the same time the signaling server( 1st asterisk ) CLI shows following log [May 5 01:49:47] NOTICE[4293]: l4isup.c:3392 process_gra: Process GRA, cic=32, range=30 [May 5 01:50:17] NOTICE[4293]: l4isup.c:3392 process_gra: Process GRA, cic=32, range=30 [May 5 01:50:47] NOTICE[4293]: l4isup.c:3392 process_gra: Process GRA, cic=32, range=30 If i restart the signaling asterisk server then the 2nd server CIC comes up with ideal states *CLI> [May 5 01:49:08] NOTICE[4592]: l4isup.c:3392 process_gra: Process GRA, cic=32, range=30 CIC 32 Idle CIC 33 Idle CIC 34 Idle seems the 2nd asterisk box does get the reset msg from the 1st asterisk box after restart. If i am not wrong 1st asterisk box should send reset msg after the 2nd asterisk box comes up. Can you guide me on that issue? Best Regards Arafath -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.digium.com/pipermail/asterisk-ss7/attachments/20100505/6ddc737b/attachment.htm