Hi Jinto The ITL file is similar to the CTL, however ITL is enabled by default after version 8.0 and created automatically without usual intervention. ITL is used by the endpoints to trust the CUCM. CTL is required to encrypt Media and signaling and...

Hello Everyone, I am writing a very Brief summary on what all topic's we would be covering on this session. HTTPS Webpage Security Hypertext Transfer Protocol over Secure Sockets Layer (SSL)(HTTPS) secures the communication between browser and CUCM ...

23rd channel is the signalling(D Channel) channel for T1, it should always be up. The other channels are Bearer channels and they are up only when you have a call going through any of those interface. AJ Rate if it helps..!!!