Applicability

Prerequisites (OS, dependencies on other software)

Configuration (OS agnostic)

OS specific help

Validation, confirmation tests

Goal

Create a trusted relationship between two SIP domains based on Mutual TLS authentication between two SIP proxies, for Microsoft Live Communication Server. Microsoft refers to this as 'federation'.

Softwareversions:

MS Live Communications Server 2005 SP1

Prerequisites:

Both LCS servers should have an accompanying 'Access Proxy' installed. The relationship between SIP domains is established between these Access Proxies. TLS is used on port 5061 so all firewalls should allow this TCP traffic, as well as UDP>1023. Public TLS certificates are preferred on both Access Proxies.

Recipe:

On both Access Proxies, perform the following actions:

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