Hi All, recently we had a situation in which none of the CS 1000 sites(Surviable or otherwise) coudln't get incoming call working. We were getting Fast busy. However, outgoing calls and 4 digit dials were working fine. To fix the issue we had to hard reboot the CS 1000 box during middle of the day which was not a good thing. We also noticed the Leader SS rebooting just before the issue started to happen. If anyone had seen this before could you kindly let me know. Thanks.