You must obtain a voice mail port license for each simultaneous call you want to allow to your
IP Office voice mail system (Embedded Voicemail or Voicemail Pro). Voice mail port licenses for Embedded Voicemail are required in the following two cases:
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Branch users use Embedded Voicemail as their voice mail system.
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Branch users use a centralized voice mail system through Avaya Aura® Session Manager (Avaya Aura® Messaging, Modular Messaging, or CallPilot®), but use Embedded Voicemail for auto-attendant features and announcements.
Voice mail port licenses for Voicemail Pro are required in the following two cases:
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Branch users use Voicemail Pro as their voice mail system.
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Branch users use a centralized voice mail system through Avaya Aura® Session Manager (Avaya Aura® Messaging, Modular Messaging, or CallPilot®), but use Voicemail Pro for local call flow processing.