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Edit Local Subscriber
MAILBOX FEATURES
VoiceMail Enabled yes no
VoiceMail Enabled: Specify whether the subscriber can receive messages from other subscribers, email messages (if enabled), and call-answer messages:
Select yes to allow the subscriber to create, forward, and receive messages.
Select no to prevent the subscriber from receiving call-answer messages and to "hide" the subscriber from the telephone user interface (TUI). The subscriber cannot use the TUI to access the mailbox, and other TUI users cannot address messages to the subscriber.
Even if you select no:
The subscriber can use an email or web client to create, forward, and receive messages.
Other system users can use an email or web client to address messages to the subscriber.
The subscriber's information displays in the LDAP directory.
Hope it helps