16
The telephone will dial the number automatically.
You can also press the
key to dial out the last dialed number.
9- TROUBLE SHOOTINGS
No voice
Check if the handset is properly connected at the base or line cord
is not broken.
Receive only
Check that the microphone hole is not blocked
Battery rust or leak
Remove the rust then wipe out the leaking liquid.
Noise
Move the electronic devices near the Dallas 20
Ring once then disconnect when receive a call.
Check if connector is in a moist environment.
Check if too many extensions are used together or the quality of
extension is not good enough (Change the bad extension)
Check with your network provider that your Voicemail is not set on
one ringer
LCD becomes dim
Adjust LCD contrast, if the LCD is still dim, replace the battery.
Most of the functions failed
Check if the batteries are in low-battery state. (Change the battery.)
Batteries are in normal state (Remove the batteries, Unplug the
lines and reinstall after 10 minutes)
TROUBLE SHOOTINGS
