Ericsson P.A.B.X. AKD741 How To Use Manual page 4

Common Control Keys
&
Lamps
i
Key TM
(GREEN)
Key for Trunk Monitoring.
AMP EF
' '@d extension is free.
Key
0
Operator's key to call or answer
an extension.
LAMP CO
Extension calling operator.
LAMPSO
Operator speaking to extension
or call to extension parked.
Key S
Press to mark a call requiring
connection to a number of
extensions.
LAMP CS
Glows when key S is depressed.
Glows when serial call returned
to switchboard.
LAMP AB
Alarm-Battery Charger
£ilure-Notify Service
+fficulties and Faults.
Key T
Test key to check which
exchange and extension lines
are busy.
Key R
Restore key.
1. to cancel a serial call
2. to monitor an I or E
connection
3. followed by C, to clear the
operator's line.
Key B
(YEL LOW )
Operate for continuous ring of
bell.
LAMP EE
Called extension is engaged.
LAMP TP
Steady dim glow indicates
receiver off hook.
Key P
Paging key. (Special instructions
will be issued if facility fitted.)
Key F
LAMP AL
Alarm-faulty extension
line-notify Service
Difficulties and Faults.
LAMP AF
Urgent Alarm-Notify Service
Difficulties and Faults.
Key I
Press to divide circuit and speak
exclusively to internal connection
or for interception.
LAMP IC
Glows when key I operated and
when an enquiry call is made to
switchboard.
Key C
Cancellation key to cancel an
incorrectly called number.
To cancel night switching.
When pressed with key X, to
clear an exchange line.
When pressed with key R, to
clear operator's line connection.
Key ET
(RED)
Key-press when technician
desires to test extension.
LAMP EB
Glow = extension barred.
Flicker= call already queued.
LAMP ET
Key operated for extension test.
Key
N1
Night switching key for calls to
be switched to preselected
extensions.
LAMPGC
Glows on incoming calls.
LAMP
N1
Glows when key N1 operated.
Key
N2
Night switching key for calls to
be answered from any extension.
LAMP N2
Glows when key N2 operated.
LAMP AM
Non-urgent fault: Notify Service
Difficulties and Faults.
Key E
Press to divide circuit and speak
exclusively to external
connection.
LAMP EC
Glows when key E operated and
when the operator cancels an
ineffective extension.
Glows when an extension returns
a call to an operator and hangs
up.
Key X
Extending key to connect
exchange and extension lines.
Also used to park a call and, in
conjunction with C, to clear a call.