SIP Trunk Failover RRS feed

  • Question

  • How is SIP trunk failover/High Availability achieved in Skype for Business Server On-Premise?

    Is it an option in the setup, or is it done at the SBC level?

    Thursday, March 23, 2017 2:58 PM

All replies

  • Deleted
    • Proposed as answer by jim-xu Friday, March 31, 2017 9:55 AM
    Thursday, March 23, 2017 3:44 PM
  • Hi kmackinley,

    Contact your service provider to determine whether it provides support for high availability, including failover. If so, you will need to determine the procedures for setting it up. For example, do you need to configure only one IP address and one SIP trunk on each Mediation Server, or do you need to configure multiple SIP trunks on each Mediation Server?

    If you have multiple central sites, also ask whether the service provider has the ability to enable connections to and from another central site:


    Best Regards,
    Jim Xu
    TechNet Community Support

    Please remember to mark the replies as answers if they helped.
    If you have feedback for TechNet Subscriber Support, contact tnmff@microsoft.com.

    • Proposed as answer by jim-xu Friday, March 31, 2017 9:55 AM
    Friday, March 24, 2017 7:48 AM
  • Its a bit difficult to answer since there isnt a reference to your architecture configuration, but its done on the SBC and in the Topology Builder in SFB and on Outbound Routes in the SFB Voice Routing configuration.


    • Each SBC will have have a redundant SFB Mediation Server to send the call to if the primary is down


    • In the SFB Topology builder you will setup a SBC on each SFB Mediation Server and then create a new trunk that points to the redundant medation pool/sbc  on the other SFB server
    • On the outbound route per pool you will have a primary and secondary SBC that the call will route to in the event that the primary SBC is down.




    Regards Habib Mankal - Skype For Business/Office Servers and Services MVP Please mark as helpful if you find my contribution useful or as an answer if it does answer your question. That will encourage me - and others - to take time out to help you. http://blog.wavecoreit.com

    • Proposed as answer by jim-xu Friday, March 31, 2017 9:55 AM
    Saturday, March 25, 2017 5:49 PM