I'm getting this error now and again on the Cisco 7960 phones we just recently installed here. It prevents the phone from sending or receiving calls, and seems to have no basis in the configuration of the individual phone.
Does anyone know common causes of this error, and any potential solutions?
I'm not able to access my old voice mail messages all of a sudden. The recording says something like 'the message is currently not available'. This has never happened before in all the years I have been using this system. I have t...