Configure SIP Trunk from Lync 2013 to Cisco Call Manager v6
I’m implementing Enterprise Voice for Lync, and I have to get Lync to work with a antiquated Cisco Call Manager version 6. The SIP trunk has been created but I get this error on my Lync servers: A PBX gateway has been marked as down. Gateway name: 192.168.1.14. Cause: A gateway failed to respond to … Read more