10.
Divert Intercom Calls.
Any extension can arrange for intercom calls to be diverted automatically to
another extension.
To divert calls the diverting extension lifts the handset and dials
'O'
followed
by the number of the extension to which intercom calls are to be transferred. The divert-
ing extension can continue to use the telephone as normal but can only be called by
the extension to which his calls are transferred. While the divert facility is in effect the
transferring extension receives interrupted dial tone on lifting the handset as a reminder that
transfer is still in effect. To cancel "divert" the diverting extension lifts the handset, dials
digit
0
and then replace the handset.
Conference.
A conference call can be set up either between three extensions
or
two extensions
and the exchange line.
To set up a conference an intercom enquiry call is made and the called extension
invited to join the conference. To join the conference the invited extension dials his own
extension number.
Mains fail.
Under mains fail conditions extension
1
is connected to the exchange line and can
make and receive exchange line calls. Intercom calls are not possible during mains fail
periods. If extension
1
is using the exchange line when the power supply either fails or
is restored, the call will be unaffected.
