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Lync and telephony infrastructure RRS feed

  • Question

  • Hi,

    We are using a telephony infrastructure composed by an IP-PBX and SBC (both connected). Now, we want to integrate Lync 2013 with this infrastructure, and we have two options:

    • Connect Lync Mediation to existing SBC.
    • Connect Lync Mediation to existing IP-PBX through Direct SIP.

    What are the pros-contras regarding these two options?

    Thanks in advance!!

    Monday, April 8, 2013 1:27 PM

Answers

  • First, is SIP connectivity supported with Lync and either the PBX and SBC? If only one is supported, then that pretty much answers your question.

    If you haven't done yet, browse this site to view which SBC's and PBXes are supported.

    http://technet.microsoft.com/en-us/lync/gg131938.aspx

    Does Lync need to speak with the PBX? WIll they coexist for along time or is this simply a migration? If it is a migration scenario, I would connetc Lync directly to the SBC as once you are done migrating you won't need to reconfigure Lync to connect to PSTN directly via the PBX as opposed to going via the PBX.

    However even in a migration scenario, and depdngin on your needs, can the SBC for inbound calls to both the PBX and Lync (if required)?

    In general, I would connect Lync directly to the SBC and route calls to the PBX via the SBC, assuming your model supports this. Calls to/from the PBX should be easier to troubleshoot without having the PBX in the mix.


    Have you visited Lync News lately? All of the latest Lync news, articles, and tips collected in one giant aggregator. http://lyncne.ws

    • Proposed as answer by Kent-Huang Tuesday, April 16, 2013 7:55 AM
    • Marked as answer by Kent-Huang Tuesday, April 16, 2013 7:55 AM
    Monday, April 8, 2013 6:31 PM

All replies

  • First, is SIP connectivity supported with Lync and either the PBX and SBC? If only one is supported, then that pretty much answers your question.

    If you haven't done yet, browse this site to view which SBC's and PBXes are supported.

    http://technet.microsoft.com/en-us/lync/gg131938.aspx

    Does Lync need to speak with the PBX? WIll they coexist for along time or is this simply a migration? If it is a migration scenario, I would connetc Lync directly to the SBC as once you are done migrating you won't need to reconfigure Lync to connect to PSTN directly via the PBX as opposed to going via the PBX.

    However even in a migration scenario, and depdngin on your needs, can the SBC for inbound calls to both the PBX and Lync (if required)?

    In general, I would connect Lync directly to the SBC and route calls to the PBX via the SBC, assuming your model supports this. Calls to/from the PBX should be easier to troubleshoot without having the PBX in the mix.


    Have you visited Lync News lately? All of the latest Lync news, articles, and tips collected in one giant aggregator. http://lyncne.ws

    • Proposed as answer by Kent-Huang Tuesday, April 16, 2013 7:55 AM
    • Marked as answer by Kent-Huang Tuesday, April 16, 2013 7:55 AM
    Monday, April 8, 2013 6:31 PM
  • Thanks for your response.

    We are not migrating. Our idea is mantain Lync connected to PBX (as an extension), in other words, mantain (not replacing) the PBX.


    • Edited by SKM12 Tuesday, April 9, 2013 8:14 AM
    Tuesday, April 9, 2013 8:14 AM
  • Hi,

    You need to confirm with SIP trunk provider if they can fully supports the hybrid environments where Lync still need to operating with an existing PBX.


    Kent Huang
    TechNet Community Support

    Wednesday, April 10, 2013 3:29 AM