Hybrid network requirements

UtauyoNASE 2,571 Reputation points

Which ports are opened in the firewall?

Skype for Business
Skype for Business
A Microsoft communications service that provides communications capabilities across presence, instant messaging, audio/video calling, and an online meeting experience that includes audio, video, and web conferencing.
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  1. JimmyYang-MSFT 48,541 Reputation points Microsoft Vendor

    Hi @UtauyoNASE

    To meet the port requirements for communication, you must also configure the following ports. It applies all the version of Lync or Skype for Business Server.

    TCP 443, TCP 80 and 443, TCP 5061, PSOM/TLS 443, STUN/TCP 443, STUN/UDP 3478, RTP/TCP 50000-59999

    For more details about it, you could refer to this article:


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