Voicemail Integration


  • Unity is the unified messaging component of the Cisco family of Unified Communications products.
  • Unity integrates natively through SCCP, but supports third party support too
  • Features:-
    • Intelligent Vocemail: allows subscribers to listen to messages, send voice messages, and customise settings such as personal greetings. Custom AA serve as electronic receptionists
    • Unity System Admin: Sys Admin can access GUI through web interface, to edit settings
    • Cisco Personal Communications Assistant:  PCA is a website that subscribers use to access Cisco Unity Assistant and Unity Inbox
    • Cisco Unity Assistant: website that allows subscribers to customise mailbox settings incl recorded greetings & Message delivery.
    • ViewMail for Outlook: VMO lets subscribers listen to vm from outlook  by using common audio controls
    • ViewMail for notes:
    • C Unity Inbox: part of Unity Assistant lets subscribers listen to, compose, reply, forward and delete messages
    • Multiple Languages: help choose language files for subscribers
    • TtS: allows users to listen to email over phone.
    • Third-party fax: supports fax lines
    • Digital Networking: allows subscribers to send and receive VM between different Unityy Servers at different locations
    • AMIS Ports: Supports Audio Messaging Interchange specification for analogue mechanism for transferring messages to different VM systems
    • Unity Bridge: networking gateway between Unity and a Octel Sysrem
    • Enhanced Failover:
    • VPIM Networking:

Version 5

    • Secure messaging
    • Message Monitor
    • Interrupted session recovery
    • Cisco Unity Phone View
    • Speech Access
    • Exchange 2007 support
    • Vista Support

Voicemail Integration

  • Integrate via SCCP or SIP
  • Telephony Integrations managed through Unity Telephony Integration Manager (UTIM )
  • In addition to adding multiple clusters by adding additional integrations for each new CUCM cluster in Unity, CUCM supports Annex M.1, Message Tunneling for Q.SIG which allows admins to enable Q.SIG on intercluster trunks (ICT) between CUCM Clusters
  • The Phone system send the following information with forwarded calls to the VM system:
    • Ext of called party
    • Ext of calling party (internal and external)
    • Reason for forward
  • the Cisco Messaging Interface (CMI) is a CUCM service that should run on tej publisher if a Simplified Message Desk Interface (SMDI) integration to a third party VM system will be used – Not used when integrating with Unity

Partitions and Calling Search Spaces

  • The Gateway should be able to reach the phones and voicemail ports
  • The phones should be able to reach the voicemail ports, but should not be able to dial MWI codes
  • The VM port should be able to dial MWI extensions  

CUCM Integration with Voice-Mail in 7 Steps
1)      Configure MWI On & MWI Off
2)      Configure Voicemail Ports
3)      Configure Line Groups
4)      Configure Hunt List
5)      Configure Hunt Pilot
6)      ConfigureVM Pilot
7)      Configure Profile


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