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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.

 

Ports:

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

 

IP Addresses:

Our IP Addresses are as follows. We would recommend allowing all IP's through your firewall. This will allow your users to utilise local resources if they host meetings closer to a different region.

Site IPv4 Subnet IPv6 Subnet Address Range (Inclusive)
Global (London) 185.94.204.0/22 2a04:e9c0::/29 -
North America (California) - 2600:1f1c:353:7600::/56 13.56.32.160-13.56.32.175
Asia Pacific (Singapore) - 2406:da18:c3c:cc00::/56 13.228.64.64-13.228.64.79
Asia Pacific (Sydney) 103.116.111.0/24 2001:df5:5100::/48 -

 

URL's:

*.unifiedcaas.net

*.joinvia.com

*.via.co.uk

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