Customer has a new CMBE 6.1. Network consists of 2-3560 switches and a 2851 router/gateway. The 2851 is running srst. Twice in the past 2 weeks, a single phone has gone into SRST mode while all other phones have remained registered to cmbe.
The phone in srst is connected to the core 3560 which also has the cmbe and the 2851 connected.
Both times customer has unplugged the phone and reconnected it and it then registers with cmbe.
Anyone have any idea what might be happening?
Switch ports look clean with no drops or buffer overruns.