When I attempt to use Cisco IP Communicator straight from the Internet, I get a failure when
attempting to register. I am doing NAT at our Cisco Router (IOS Firewall). After looking at a packet
trace using wireshark, I see this call being made and failing.
Keep in mind that IP Communicator works fine internally. We are using CUCM v7.1.3. What is the TLV
file? Why wouldn't it be in the same location as for internal users? How do I fix this issue?
Any assistance would be greatly appreciated.