Configuring Lync Server 2013 to Work with RingLeader SIP Trunk When Deployed Behind Forefront TMG 2010

Configuring Lync Server 2013 to Work with RingLeader SIP Trunk When Deployed Behind Forefront TMG 2010

Here is a configuration guide put together by our friend Chris when connecting Lync 2013 with EtherSpeak's SIP trunk when the Lync is behind a Forefront TMG 2010.