I've got a customer that has a BCM 450 and 7 IP phones (1140's and 1230's). The phones lately have been intermittantly resetting themselves. they get a message saying that it cannot connect to the server,then 10 minutes later, it does. We initially thought that it was an IP issue, so we used static IP's and that seemed to work for bit, now the problem is coming up again. Any thoughts?

Sounds like a network issue.
Reboot BCM
Reboot router/switch/hub
Patch BCM

I had the same issue. The BCM was in the same ip address range as the router's DHCP range.