Install ISA Server 2006
Microsoft Office Communications Server 2007 and Microsoft Office Communications Server 2007 R2 will reach end of support on January 9, 2018. To stay supported, you will need to upgrade. For more information, see Resources to help you upgrade your Office 2007 servers and clients.
Install ISA Server 2006 according to setup instruction included with the product. For more information about installing ISA Server, see Microsoft ISA Server 2006 - Getting Started at the Microsoft TechNet Web site, at https://r.office.microsoft.com/r/rlidOCS?clid=1033&p1=ISADocs.
Note
After completing the ISA Server setup, a default access rule denying traffic to all network resources is present. You need to configure your firewall rules as defined in the previous procedure to resolve this denial.