Network firewall settings for Skype/Lync

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The following ports and destinations are necessary for the Skype for Business/Lync and Zoom Federation.

Note: Traffic must be allowed to and from these addresses via the listed ports.

Ports and destinations 

Protocol Ports Data


 TCP 5061  SIP/TLS connection for Lync Federation
 TCP  5000060000

RDP sharing data

 UDP   5000060000 RTP media for audio video 

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