In order for Skype for Business to function properly, the following network ports need to be open OUTBOUND through the network firewall.
Our IP Addresses are as follows:
22.214.171.124 - 126.96.36.199*
North America (California):
188.8.131.52 - 184.108.40.206*
North America (Washington D.C):
220.127.116.11 - 18.104.22.168*
Asia Pacific (Singapore):
22.214.171.124 - 126.96.36.199*
*Please note, these are ranges of IP's and not subnet's. The IP's are therefore inclusive.
**If your organisation utilises VIA Connect, we will only advertise to you and you should only route this subnet to us.