Customer issues between ExUM and Azure Voicemail

This article describes how to configure the delivery of Azure Voicemail messages for Skype for Business Cloud PBX users who have Exchange Server-based on-premises mailboxes.

For more information about Cloud PBX Azure Voicemail, see Set up Cloud PBX Voicemail - Admin help.

Supportability matrix

Note This table will be updated as we test and certify additional topologies and configurations.

Exchange versionDomainPSTN setupEndpointsDirSync
Exchange 2013 CU12Single AD ForestPSTN Calling

Hybrid Voice
Outlook 2010

Outlook 2013

Outlook 2016

Skype for Business 2016 C2R/MSI

Skype for Business 2015 MSI

Skype for Business 2013 MSI

Lync 2010

Skype for Business for IOS

Skype for Business for Android

Lync for MAC

Lync Phone Edition

Certified Skype for Business Cloud PBX Phones
Azure AD Connect

Configuration steps

  1. Verify that DNS records for your on-premises Exchange infrastructure have been published in your public DNS zone, and that the Autodiscover and Exchange Web Services (EWS) URLs are accessible from the Internet.

    Configure DNS records
  2. Verify that directory synchronization is enabled between your on-premises Active Directory and Office 365, and that on-premises and online user accounts are successfully synchronized.

    Set up directory synchronization for Office 365

    Note If you have previously used the Exchange Hybrid Configuration Wizard to enable hybrid mode with Exchange Online, it is only necessary to complete steps 3 and 4.
  3. Configure OAuth authentication between your Exchange on-premises infrastructure and Skype for Business Online.

    Configure OAuth between Skype for Business Online and Exchange 2013 on-premises 
  4. Verify that Unified Messaging is enabled for Cloud PBX users who have on-premises Exchange mailboxes, as this will provide visual voice mail functionality for Azure Voicemail messages in Outlook, Skype for Business Apps, and Desk-phones.

    Enable a user for Exchange Unified Messaging
  5. Verify that the Exchange Online (Plan 2) licensing option is disabled for Cloud PBX users who have on-premises Exchange mailboxes, as this will interfere with the delivery of Azure Voicemail messages.

    Exchange Online (Plan 2) licensing option is disabled

Note This is a "FAST PUBLISH" article created directly from within the Microsoft support organization. The information contained herein is provided as-is in response to emerging issues. As a result of the speed in making it available, the materials may include typographical errors and may be revised at any time without notice. See Terms of Use for other considerations.

Article ID: 3195158 - Last Review: 09/27/2016 17:56:00 - Revision: 1.0

Skype for Business 2016, Skype for Business 2015, Microsoft Lync Server 2013

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