Exchange 2013 UM on-prem-hybrid with Office365 RRS feed

  • Question

  • design:

    Exchange 2013 deployment on-prem including UM being used for UM for users.  Domain and Exchange are set to companyA.net

    companyA.com is set up in O365 for email\calendars etc.

    ADFS and DirSync already configured to O365.

    Available UPN's in AD  are already companyA.com and companyA.net.


    Setup hybrid so some users can have mailboxes on-prem and others on O365.

    Have companyA.com be the primary smtp address


    1)  The speech attendant part of UM on prem is a non-negotiable requirement.  could the mailboxes be on O365 and still work correctly?

    Other considerations:

    1) Lync 2013 on-prem is deployed for all features including Enterprise voice.  Presence, calendars, and voicemail from exchange required.

    Need to have the MWI and calendaring\presence work.
    • Edited by BiggJake Friday, January 17, 2014 5:03 PM
    Friday, January 17, 2014 4:26 PM

All replies

  • 1: It should, but first make sure you create the UM Dial Plans other UM properties in Office 365.
    Do testing before the move.

    I saw one of friend faced issue where as, Voice Mail notification wasn't getting delivered to user Mailbox.


    Gulab Prasad

    Technology Consultant

    Blog: http://www.exchangeranger.com    Twitter:   LinkedIn:
       Check out CodeTwo’s tools for Exchange admins

    Note: Posts are provided “AS IS” without warranty of any kind, either expressed or implied, including but not limited to the implied warranties of merchantability and/or fitness for a particular purpose.

    Saturday, January 18, 2014 8:15 AM
  • Thanks for the reply.

    The UM is already setup and functional on the on-prem exchange because of the requirement for the speech AA features.

    The main reason we are needing to do the hybrid is message notification on Lync phones.  The on-prem and O365 have different EWS at this point so the MWI and message notification isn't working properly.  Users Outlook is setup for both )365 (primary) and then the on-prem exchange for the UM.  messages are delivered to the on-prem mailboxes and therefore Outlook, but since the Lync only pulls the EWS for the O365, then the notifications aren't working.

    Based on the above, my question still stands.

    Monday, January 20, 2014 2:42 PM