Hi all. I have UC 540 in production and I recently added Lync Server 2013. I followed tutorials (was configuring through CLI) and as a result, CISCO phones (SCCP) can call Lync client and vice versa, but Lync clients cannot call outside the LAN. I am getting "internal Server error 500" from UC.
I am junior admin and not sure where the problem is. Debug dial peer is in the attachment.