Use this procedure to verify if the procr at which the IP telephone is registered is operational.
Procedure
Execute the status stationext# command.
Scroll to the CALL CONTROL SIGNALLING section.
In the Switch Port field look up the slot location of the procr that is responsible for the IP telephone.
Verify that the IP telephone is registered properly with Communication Manager by checking the Registration Status field on that page. If the IP telephone is not registered, then ensure that it is registered.
Execute the status link command and ensure that the link is in service.
If the link is out of service, then check the Installation instructions to make sure the procr has been administered correctly.