Hey everyone,
Got an interesting issue here....We've got 2 Cisco phones that will register and come up fine, but after 30 min or so, they will unregister and go through the whole registration process again but will never register until you power cycle the phone. The phones connect back to a 4510 where we're routing back to our core. There is a voice vlan that is configured on that switch and the dhcp scope on our dhcp server has all the correct settings and options. The leases show up on the dhcp server and the lease time is set to 24 hrs. Any ideas on what I should be looking at or what could be the problem? The phones are a 7961 and a 7911
