LOW BATTERY DETECTING
When the voltage is lower than 3.9V, LCD displays " " icon to remind the user to replace the
batteries.
LCD BACKLIGHT FUNCTION
The backlight will light on when receiving an incoming call, dialing, pressing any key or at the
music hold state. It is switched off after 10 seconds if no operation.
NOTE: If batteries are not loaded, there will be no LCD backlight function.
PAUSE FUNCTION
If dial a number from PABX extension, press PABX number (normally "0" or "9") + PAUSE +
desired number. When redial, need not dial PABX number and PAUSE key, just press REDIAL
key.
LOCK
Turn the key to yellow point, all numbers are locked except the emergency number
Turn the key to green point, all numbers starting with "0" are locked.
Turn the key to red point, all numbers are allowed to be dialed out.
NOTES
Please unplug telephone line and power (if any) when install or replace batteries.
TROUBLE SHOOTING
?
No voice
+
Check if the handset is on the phone or line is broken.
?
Receive only
+
Check if P/T mode is properly set.
Check if the unit is locked (use the key to unlock it)
?
Battery rust or leak
+
Remove the rust or wipe out the leaking liquid.
?
Noise
+
Check if the circuit is broken. (Change the circuit)
Check if the connector is moist or rust (Change the connector)
?
Ring once then disconnect when receiving a call. Dialing function is still available
+
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
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