What are the IP addresses and ports that I need to open to allow access to Office Chat servers?

To allow access to Office Chat servers from behind your firewall:

  1. Allow HTTP, HTTPS and TCP access to these three hosts:
    • oc1.officechat.com ( ) 
    • oc2.officechat.com ( )
    • oclegacy.officechat.com (
  2. Allow outbound access to ports 80,  443, 5222 and 5223  on the above 3 hosts. 

If you have a BAA with us please instead use this host:  baa.officechat.com ( with the same ports listed