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XEN Topaz
NEC Business Solutions Ltd
Features and Specifications Manual
Chapter 4 - 247
D
oc. N
o. 8846 -
Release
2.0
Apr
il 2005
Off Hook Signalling
• Description
When a user calls an extension busy on a call, they can send an off hook signal
through the handset and through the telephone’s speaker indicating they are trying to
get through. The signal is an off hook ringing over the idle (second) line appearance.
Off Hook Signalling helps important callers get through, without waiting in line for the
called extension to become free. The system provides the following Off Hook Signalling
options:
•
Called Extension Block
The called extension’s Class of Service may block incoming Off Hook Sig-
nalling attempts. This is beneficial to users that don’t want interruptions
while on a call.
•
Automatic Signalling
Calling a busy extension automatically initiates Off Hook Signalling. This
option is useful to receptionists, operators and others that must quickly pro-
cess calls. This is set in the called extension’s Class of Service.
•
Manual Signalling
After reaching a busy extension, manual signalling gives the caller the
choice of using Off Hook Signalling or activating other features. Extension’s
without automatic signalling have manual signalling. The users can dial a
service code or press a Programmable Function Key to send Off Hook Sig-
nalling to the called phone.
•
Selectable Off Hook Signalling Mode
The Off Hook Signal can be muted ringing, no off hook ringing, a single
beep in the handset, a beep in the speaker, or a beep in the handset - based
on the caller’s programming.
•
Off Hook Ringing
Use this option to enable or disable an extension’s Off Hook Signalling for
incoming calls (DID, trunk). If enabled, Off Hook Signalling occurs normally.
If disabled, calls queue behind the extension’s busy line appearance and
the user gets no Off Hook Signalling indication. The second line appearance
stays idle. The caller hears ringback tone while their call waits. This is set in
the called extension’s Class of Service.
•
DID Call Waiting
An extension can optionally have DID calls camp on with Off Hook/Call Wait
signalling, without Off Hook/Call Wait signalling or no signalling. This is set
in the called extension’s Class of Service.
•
Block Manual Off Hook Signals
This Class of Service option enables/disables a busy extension’s ability to
block off hook signals manually sent from a co-worker. If disabled (not
blocked), callers can dial the service code (assigned in 11-16-04) at busy or
busy/ring to signal the extension. If enabled (blocked), nothing happens
when the caller dials the service code (assigned in 11-16-04) to off hook sig-
nal.
•
Block Camp On
If an extension has Block Camp On enabled, callers to the extension cannot
dial the service code (assigned in 11-16-05) to Camp On after hearing busy