# CDI service definition

The CDI service enables you to perform station call control and board management functions on the CX 2000 and CX 2000C station interface boards.

The CDI service supports only the CX 2000 board family. For information on the CX 2000 board, refer to the CX 2000 Installation and Developer's Manual. For information on the CX 2000C board, refer to the CX 2000C Installation and Developer's Manual.

## CDI service call control

Using the CDI service, an application can perform basic call control operations on CX 2000 and CX 2000C boards. These operations include:

- Detecting DTMF tones

- Transmitting tones

- Setting on-board timers

- Sending and receiving signaling patterns

## CDI service board management and monitoring

The CDI service provides the following board management and monitoring functions:

- Temperature monitoring

- Telco power detection

- Station module detection