The use of TLS can be checked and confirmed as follows.

• System Status Application: The Extension details indicate the Layer 4 Protocol being used by the extension connection. TLS is shown when TLS is used.

• System Monitor: Within monitor, select Status > H323 Phone Status. The Transportcolumn shows TLS for extensions using TLS for their connection.

  Within monitor traces, H323 RAS Tx and Rx records indicate whether they are using TLS. Similarly, H323 CS and RAS records show the use of port 1300.