Specifications

310HD, 320HD and 420HD IP Phones
39.1.4 Handset Test
Upon successful completion of the LED test (in the previous section), perform the Handset
test. This test verifies the correct functioning of the handset, which includes the following:
 Handset’s microphone (transmitter) for speaking
 Handset’s receiver (speaker) for listening
 To test the handset:
1. Press the pound (#) key; the LCD screen displays the message ”Handset test. Off
hook to start”.
Figure 39-4: Off hook Handset Test
2. Off hook the phone; the LCD screen displays the message “Recording”.
Figure 39-5: Recording Test
3. Speak into the handset microphone; after about five seconds, the LCD screen
displays the message ”Playing”.
Figure 39-6: Playing Test
4. The voice that was recorded when you spoke into the handset microphone is now
played from the handset receiver.
5. Continue with the Headset test in Section 39.1.5 on page 239.
Administrator's Manual 238 Document #: LTRT-09910