# Demonstration programs

The following demonstration programs are provided with Natural Access and can be used to verify that the CG 6565 board is operating correctly:

Program | Description
--- | ---
ctatest | Demonstrates Natural Access functions.
incta | Demonstrates handling inbound calls.
outcta | Demonstrates establishing outbound calls.
prt2prt | Demonstrates call transfer from an incoming line to an outgoing line and uses the Switching service to make connections and to send patterns.
vceplay | Demonstrates using the Voice Message service to play messages in voice files.
vcerec | Records one or more messages to a voice file.

Note: Executables for incta, outcta, and prt2prt are in the respective sub-directories under \nms\ctaccess\demos.

Running these demonstration programs requires a connection to either a live T1/E1 trunk or a connection to T1/E1 test equipment that supports call generation and voice path testing. You can use the T1/E1 crossover cable to loop back one trunk to another trunk. One trunk can then receive calls placed on the other trunk.

To run these demonstration programs on the CG 6565 board, specify the MVIP-95 stream and slot number of the local DSP resource on which to run the program.

For example, on a CG 6565 board configured as an E1 CAS board, the DSP resources on stream 64, timeslots 0..29 are connected to the first trunk. Timeslots 30..59 are connected to the second trunk, and so on. Assume that the board number is 0.

To run ctatest on the first channel of the first E1 trunk, enter the following command:

ctatest -s0 -b 0

To run ctatest on the first channel of the second E1 trunk, enter the following command:

ctatest -s30 -b 0