Core Issue
A voice mail system, which is an integral part of an enterprise telecommunications system, provides voice messaging features for all users. After receiving voice messages in their mailboxes, users receive message waiting lights on their phones. Users can retrieve, listen to, reply to, forward, and delete their messages by accessing the voice messaging system with an internal or external call. You must enter all users and their directory numbers in Cisco CallManager Administration to make it possible for them to retrieve messages from a Cisco Unity voice mail device.
For more information, refer Voice Mail Connectivity to Cisco CallManager.
Resolution
The Voice Mail Profile Configuration window of Cisco CallManager Administration allows you to define any line-related voice messaging information.
For information on configuring a voice mail profile in Cisco CallManager, refer to Voice Mail Profile Configuration.