Exchange Hybrid - Voicemail not working for online users RRS feed

  • Question

  • Hi
    Not sure if I am in the correct forum.

    Following environment:
    Exchange 2016 hybrid with Office 365
    Skype for Business onprem with sip trunk

    Skype is only used onprem only because PSTN calling is not yet supported in our country.
    Exchange mailboxes are moved to Exchange Online, hybrid config is still in place.

    Unanswered calls are going to voicemail, so far so good.
    If a user calls to voicemail using the voicemail number he must enter his mailbox extension, then he gets "... is no a valid mailbox extension"
    I have a test user with an onpremise his mailbox. If he calls to voicemail he is recognized, must enter his pin and everything works.

    I followed different articles including https://blogs.technet.microsoft.com/nexthop/2016/03/29/integrate-on-premise-lync-or-skype-for-business-with-office-365-unified-messaging-um/, everythig seems to be configured correctly, but online user are not able to call to voicemail.

    Any suggestions would be apreciated.


    Friday, March 2, 2018 12:01 PM