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Cisco Bug: CSCtf25666 - undocumented limitation; phone view; directory number masks

Last Modified

Feb 22, 2014

Products (1)

  • Cisco Unity Servers

Known Affected Releases


Description (partial)


Phone view, or specifically, message monitor feature is not currently designed to function with disparate extension lengths, such as 7-digit Directory Numbers configured in CUCM, which are masked to correspond to a 4-digit extension configured for a subscriber entry on the Unity server.

In the current design, in order for Phone View to work, CUCM must present to Unity a calling number that actually appears as a valid DN in the list of phone devices that Unity retrieves from

This limitation should be documented in the "Requirements for Cisco Unity Phone View" section of the "System Requirements for Cisco Unity Release 5.0" document.


Unity (all versions that support Phone View)
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