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How does Media Flow through SBA Gateway? RRS feed

  • Question

  • Hi All,

    When you deploy a SBA Gateways (Audiocodes) in a Branch Site, you assign users to that SBA.

    I create a new dialpan and Voice Routes for that group of users, because I want that all PSTN calls goes through that SBA Gateway.

    Do All PSTN calls goes to GW and then to PSTN? or first go to Mediation Server (Central Site)?

    Regards

    Jose Osorio

    Wednesday, February 27, 2013 9:20 PM

Answers

  • Hi,

    All external calls initiation need to go to Mediation Server first then to Gatway and PSTN network.

    So by default, the Lync Server 2010 Survivable Branch Appliance includes the
    following components:

    • A Registrar for user authentication, registration and call routing
    • A Mediation Server for handling signaling between the Registrar and a PSTN
      gateway
    • A PSTN gateway for routing calls to the PSTN as a fallback transport in the
      event of a WAN outage
    • SQL Server Express for local user data storage

    Please remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.

    Sean Xiao
    TechNet Community Support



    • Edited by Sean_Xiao Monday, March 4, 2013 7:45 AM
    • Marked as answer by Sean_Xiao Thursday, March 7, 2013 5:33 AM
    Monday, March 4, 2013 7:44 AM

All replies

  • Can you explain your topology build here a little more? 

    If you have a branch site and setup a SBA for those users and create a voice route out that gateway associated with that pool the calls will not go through the central site mediation server (for redundancy). So yes, the calls will go out the GW and then to the PSTN. It really depends on how you configure it though. 

    Wednesday, February 27, 2013 10:17 PM
  • Hi,

    All external calls initiation need to go to Mediation Server first then to Gatway and PSTN network.

    So by default, the Lync Server 2010 Survivable Branch Appliance includes the
    following components:

    • A Registrar for user authentication, registration and call routing
    • A Mediation Server for handling signaling between the Registrar and a PSTN
      gateway
    • A PSTN gateway for routing calls to the PSTN as a fallback transport in the
      event of a WAN outage
    • SQL Server Express for local user data storage

    Please remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.

    Sean Xiao
    TechNet Community Support



    • Edited by Sean_Xiao Monday, March 4, 2013 7:45 AM
    • Marked as answer by Sean_Xiao Thursday, March 7, 2013 5:33 AM
    Monday, March 4, 2013 7:44 AM