Cisco VoIP - Change voicemail greetings in the portal
How to change greetings in the voicemail portal
Your voicemail account settings can be customized through the web browser. Click the Settings button to open the Messaging Assistant page.
Cisco Unity Connection allows subscribers to define Standard, Alternate, Busy, Internal, Closed and Holiday greetings. You can use an alternate greeting for such things as an out-of-office greeting.