GE twin set 21880 - Manual (Page 15)

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Base LED Description
There are following LED for corded base.
LED Functions
Speakerphone
If speakerphone is on, this LED is on.
In-Use Light up in conversation.
Blink in ringing or after receiving Message
Waiting Call in standby mode
Base LCD Description
This is a two line LCD.
First lower line: 12 dot-matrix characters.
Second upper line: 8 digits for date time display and 2 digits for
number of calls with some icons.
Symbol Comment
It turns on when the unit is in off-hooked condition
It turns on when the mute function is enabled in
off-hooked condition
It turns on when message waiting (VMWI) is on
M1 It turns on when direct memory M1 is being
accessed
MEM It turns on when indirect memory is being accessed
TIME It is 4 7-segment digits to indicate the time – time
duration or real time
COLON It blinks every seconds in standby during real
time update.
It turns on when TIME digits are displayed in
Call log.
AM / PM It turns on for AM / PM time
OUT It turns on when redial outgoing memory is being
accessed
CID It turns on when CID memory is being accessed
DATE It is 4 x 7-segment digits to indicate the date.
MINUS It turns on when DATE digits are displayed