User`s guide

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99-07-15 D
115/155 34-ASB 150 02 Uen
FACILITY DESCRIPTION
Faktaansvarig - Subject responsible
SEA/EBBMP M. Plattner
SEA/EBBMP ASB 150 02
SEA/EBBX/E
AUTOMATIC CALLBACK -
BUSY/FREE EXTENSION
Definition
An extension that does not receive an answer or
encounters busy during a call to another extension,
can order callback.
On receipt of an order the system initiates monitoring
of both caller and called party.
When both of the monitored parties are free at the
same time, the party who ordered callback will be
rung.
When the ringing has been answered, a new call will
be initiated automatically to the extension that was
called originally.
Use
Automatic callback is a valuable function, when one
wishes to be sure of gaining contact with the caller
immediately after the latter goes free or after he/she
has used his/her phone again.
During the monitoring period the extension that
ordered callback can use the telephone freely.
Operation
All telephones
To order callback
An extension that, when initiating a call, encounters
busy or no answer , can order callback by pressing
digit key "5" or another selected digit.
When the system has accepted the order, the
extension will receive verification tone or silence.
If the order is rejected, the extension will continue to
receive busy tone.
Extensions equipped with EXECUTIVE Telephone
may press the menu key call-back.
NOTE: Callback may not be possible because of
categorisation or the current traffic
situation, even if the menu key call-back
is shown.
Callback
When both parties go free, the ordering extension is
notified by a special ring signal.
The call is presented on Line 1 or Line 2 as a normal
internal call.
A telephone with display shows:
EXECUTIVE Telephone
STANDARD Telephone
When the ordering extension answers, the monitored
extension is called as for a normal internal call.
The called extension receives an internal ring signal
and the caller ring control tone.
While the ordering extension is being rung the
monitored extension is blocked for own and other calls.
A CN call back will be handled as it is programmed via
the command 0177 (see also chapter
PROGRAMMING in this document)
For more information regarding Corporate Networking,
see "NETWORKING,
document 365/155 34-ASB 150 02 Uen.
10 Jul 14:40 +15˚
CALL BACK CALLING
directory redial prog
10 Jul 14:40 +15˚
CALL BACK C
115.fm
Database reference