VTech Telecommunications Ltd 80-8213-00 用户手册
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Appendix
Alert tones and lights
Handset alert tones
Two short beeps
You are pressing CID or DIR when the volume is already at
its highest or lowest setting.
-OR-
You have reached the end of the caller ID history.
its highest or lowest setting.
-OR-
You have reached the end of the caller ID history.
Three short high-pitched beeps
The telephone has completed the command successfully.
Four short beeps
Low battery warning.
-OR-
Out of range while the handset is on a call.
-OR-
Out of range while the handset is on a call.
Telephone base alert tones
Beeps once every 10 seconds
Message alert.
Four short beeps
Registration failure.
Handset indicator lights
CHARGE light
On when the handset is charging in the telephone base
or charger.
or charger.
Backlight (lighted display and dial pad)
On when the handset is lifted from the telephone base
or charger.
or charger.
On when a key is pressed.
/SPEAKER light
On when the speakerphone is in use.