Just a guess here, but maybe you are running into this (seeing that the port is never seized to try the notification);
Only Certain Types of Messages Are Set to Trigger Notification
Cisco Unity can be set so that a subscriber is notified only of certain types of messages. For example, if subscriber notification is set up only for fax and urgent voice messages, e-mail and regular voice messages will not cause Cisco Unity to make a notification call.
To Change the Message Types That Trigger Notification Calls
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...