We have customer with a 100 (612, 684, ASC, 12 VIP Pros, and Mobile Messaging) and I need to picks some brains.

We set up a department for our customers receptionist to forward incoming calls to when she leaves her desk. It doesn't work. Her extension rings twice then the 3 extension in department 280 start to ring between the rings at her desk. The 3 extensions are set to start ringing on the 3rd ring anyway but when forwarded to 280 they ring between her rings after the 2nd ring. It's not really forwarding. She can forward to a single extension and it works just fine. I spent about an hour on the phone with tech support and they were baffled and got engineering involved. We couldn't figure it out (ticket is still opened). Engineering said to try replacing the flash. The problem is the customer has a 24/7 business and downtime is almost impossible to schedule. Any suggestions or ideas would be greatly appreciated.