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 two hosts:
    • oc1.officechat.com ( 50.16.226.155 ) 
    • oc2.officechat.com ( 52.20.156.107 )
    • oclegacy.officechat.com (52.207.126.28)
  2. Allow outbound access to ports 80,  443, 5222 and 5223  on the above 3 hosts.