A customer's user tests voicemail functionality on a newly installed Cisco Unity Connection cluster and notices that the MWI function is not working properly. The user hears the greeting and can…

Question

Options

• AReview the MWI extensions of the created port group on the newly installed Cisco Unity
• BCheck whether the MWI service is activated and running in the Service Management section on
• CCheck whether the search space of the created port group contains the route pattern for MWI
• DCheck whether the voicemail ports on Cisco Unified Communications Manager are properly
• EReview the port group configuration, and check whether the option "Enable Message Waiting

• A
  82% (14)
• B
  6% (1)
• D
  12% (2)

Explanation

Since the user can hear greetings and leave messages, the basic call flow and voicemail ports are working. The issue is specifically with the MWI lamp not illuminating, pointing to MWI-specific configuration problems. (A) The MWI extensions configured on the port group must match the MWI On/Off directory numbers configured in CUCM; if these extensions are incorrect or missing, the MWI signal is never sent to the phone. (E) The port group has an explicit option to 'Enable Message Waiting Indicator' - if this checkbox is disabled, the port group will never attempt to toggle the MWI lamp regardless of any other configuration. These two are the most direct causes when voicemail works but MWI does not.

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