## Self-Test Procedure

NOTE: 9600 Series IP Telephones store two software code images in reprogrammable non-volatile memory. The primary image, called the “big app” must be running to perform a self-test. The backup image, called the “little app” does not support the self-test.

For self-testing, use the following procedure:

1. To invoke 9600 Series IP Telephone self-test procedures, press the following sequence of keys on the faceplate of the telephone:

Mute 8 3 7 8 # (Mute T E S T #)

NOTE: Press the Mute button momentarily. Do not press this button while pressing other keys/buttons.

All telephones show the following text, left-justified at the top of the display, for 1 second after self-test is invoked:

Self test #=end

A block character with all pixels on then displays in all display character locations for
5 seconds. Display of the block character helps to find bad display pixels.

The telephone displays one of the following:

If self-test passes: | Self test passed #=end

If self-test fails: | Self test failed #=end

1. To terminate the self-test, press the # button on the dial pad at any time. Doing so generates a confirmation tone, and returns the user interface to its previous state.