British Telecommunications (BT) Senator, System Manual

Page: 31 / 75

5.5.4
5.6
5.7
5.6
While in 'Divert'
EXCHANGE LINE
CONFERENCE
CALLS
TEN ADDRESS
REPERTORY
DIALLING
Part 5 FACILITIES AND OPERATING
PROCEDURES
If required, the 'Divert' facility may be cancelled by programming the
extension's own number using the above procedures.
The diverting extension can make outgoing exchange or intercom
calls but all incoming calls are signalled at the nominated extension.
A green 'Calls Diverted' lamp (LED) beside the DIVERT button
glows on the diverting telephone and a green, 'divertee' lamp on the
nominated extension telephone glows. (See Fig 3.1.)
The nominated extension can call the diverting extension on
intercom. The diverting extension only receives a single tone whether
he is 'on-hook' or engaged on another call. If the diverting extension
is 'on-hook' the green message waiting lamp (LED) will glow until
the call is answered. This informs the diverting extension that the
nominated extension has called.
Transfer of a held exchange line call to the diverting extension can
only take place if the diverting extension presses the appropriate
exchange line button.
A 'conference' call can be set up between one exchange line and two
extensions so that all three parties can speak to each other. Extensions
connected via IPBX or External Extension adaptors cannot use this facility.
An extension must make or receive an exchange line call before a conference
call can be set up by using the following procedure:
Put the exchange line into HOLD and call the extension which is to
join the conference call.
When the extension answers he indicates his willingness to join the
conference by pressing his HOLD button. This causes the green
'Divertee' LED at both extensions to flash rapidly.
Push the HOLD button. This sets up the conference call and the LEDs
stop flashing.
Once a conference call has been set up neither of the extensions can use the
HOLD facility.
Either of the extensions, irrespective of which of them originally set up the
call, can leave the conference by replacing the handset, allowing the other
two parties to continue as with a normal call. Once this has happened the
extension which is still connected to the exchange line can Hold or Transfer
the call, or set up another conference call by repeating the above procedure.
Teles 8560 and 8561 have a ten address repertory dialling as standard. This
facility is also available on Teles 8521, 8551 and 8553. Up to 10 exchange
line numbers of up to 18 digits each can be stored, one under each button
from 1 to 0 of the push button dial unit. There is also the facility to repeat
automatically the last number keyed.
CPE/MS 526 Issue 2 (12/88)