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.
| Protocol | Ports | Data |
Destination |
| TCP | 5061 | SIP/TLS connection for Lync Federation | 162.255.36.0/24 162.255.37.0/24 69.174.108.0/24 69.174.108.0/24 50.239.202.0/24 192.204.12.0/24 192.204.13.0/24 204.80.109.0/24 204.80.108.0/24 162.12.233.0/24 204.141.28.0/24 204.141.29.0/24 204.80.104.0/24 204.80.105.0/24 50.239.203.0/24 69.174.109.0/24 192.204.14.0/24 192.204.15.0/24 162.12.232.0/24 204.141.30.0/24 204.141.31.0/24 165.254.89.0/24 |
| TCP | 50000–60000 |
RDP sharing data | |
| UDP | 50000–60000 | RTP media for audio video |