I will start this blog post with a caveat: it is huge and more of a beginners encyclopedia of Lync SIP trunking configuration and troubleshooting tips than a blog post! It also adds some new specific Lync Server 2013 configuration information to the existing information available on configuring a SIP trunk with previous releases of Lync Server.
It includes some great tips on getting up and running with a SIP Trunk and I am hoping it is one of the best troubleshooting reference for Lync Server and SIP trunk connectivity available. If you are familiar with SIP trunking and Lync and are having some issues, you might want to skip . . . → Read More: SIP Trunking 101 with Lync Server 2013