Which port required to open for audio call and screen sharing in SFB 215 RRS feed

  • Question

  • Hello,

    we have sfb 2015 (6.0.9319.534) environment created with three server (one edge server,Front end Server and Office web Apps server)  .Wants to know which  specific port required to open for sfb audio call and screen sharing.



    Thursday, December 13, 2018 11:01 AM


  • Hi Rich,

    Please take account of the following ports which are used for SFB communication between client and server:


    TCP 53 – SFB DNS query


    TCP 5061 – SFB clients inside a corporate network/ For federated and public IM connectivity that use SIP.


    TCP 5063 – Used for incoming SIP requests for Audio/Video conferencing.


    TCP 443 – Used by SFB clients outside a corporate network


    UDP 3478 – This port is used for STUN (Session Traversal Utilities for NAT) messages. SFB clients initiate STUN connectivity check prior to media transmission. Once STUN connectivity check is succeeded, media transmission happens.


    UDP 50000 – 65000 – typical port range used for RTP – can be set to a specific port range on the SFB server




    Kind regards,

    Calvin Liu

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    • Edited by Calvin-Liu Friday, December 14, 2018 6:53 AM
    • Marked as answer by Richa km Monday, December 17, 2018 9:44 AM
    Friday, December 14, 2018 6:51 AM