I think i have a issue in the switchport configuration of the VG248.
When 'switchport voice vlan 10' is configured, the VG248 will not communicate to the entire network. Instead, when 'switchport access vlan 10' is configured for the same vlan, it will register with the CCM and work fine.
This has started to happen all of a sudden. Initially the switchport was configured for sw-port voice vlan.