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Network Setup

In order for Skype for Business to function properly, the following network ports need to be open OUTBOUND through the network firewall.

 Port Protocol Direction
 443 TCP Outbound
 3478 TCP/UDP  Outbound 
 5061 TCP Outbound
 50000-59999 TCP/UDP Outbound

Our IP Addresses are as follows:

Global:

185.94.204.0/22

35.176.92.0 - 35.176.92.15*

2a04:e9c0::/29

North America (California):

13.56.32.160 - 13.56.32.175*

2600:1f1c:353:7600::/56

North America (Washington D.C):

34.226.36.16 - 34.226.36.31*

2600:1f18:23b3:af00::/56

Asia Pacific (Singapore):

13.228.64.64 - 13.228.64.79*

2406:da18:c3c:cc00::/56

*Please note, these are ranges of IP's and not subnet's. The IP's are therefore inclusive.

Our URL's:

*.unifiedcaas.net

*.joinvia.com

*.via.co.uk

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