We are in the evaluation stage of Office 365 and we currently have Exchange 2010 Unified Messaging setup on-premises. Reading through the need to setup a session border controller for UM and there are only three listed as being tested. My first question is if anyone has used Cisco Unified Border Element with Office 365.
Also we need to setup firewall rules to allow Office 365 to connect to the SBC but I can't find what IP addresses we would need to allow. Anyone have a link to the IP addresses that the SBC needs to opened up for?
Thanks.
