To activate a secondary dial tone when a Cisco IP phone user dials a defined public switched telephone network (PSTN) access prefix, use the secondary-dialtone command in telephony-service configuration mode. To disable the secondary dial tone, use the no form of this command.
The following example enables a secondary dial tone when a Cisco IP phone users press the digit 9 to get an outside line:
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...