73d85a59_Communications_Manager___Cisco__Field
[Description] The voicemail pilot number is the directory number that a user dials to access their voice messages. Each pilot number can belong to a different voice-messaging system. Select one of these options: Number—Select the voicemail pilot number for the system. This is the same as the number specified in the Voice Mail > Voice Mail Pilot menu in Cisco Unified Communications Manager Administration. No Voice Mail—Select this option if you do not want to send unanswered incoming calls to voicemail. [Field] 
Voice Messaging Pilot
Setup for Cisco Unified Presence and Cisco Unified Communications Manager - Cisco