HOW TO OPERATE THE MAIN TELEPHONE
PLANS 105 & 107
TO MAKE AN EXCHANGE CALL
Lift the handset, press the key marked SPK TO EXCH, wait for dialling tone, then
dial or wait for the operator to answer.
TO ANSWER AN EXCHANGE CALL
Lift the handset and press the key marked SPK TO EXCH and answer.
TO EXTEND AN EXCHANGE CALL TO EXTENSION
Press the key marked SPK EXTN EXCH HELD and
ring the extension by pressing one of the long unmarked keys. When the
extension user answers, announce the call and then press the EXTN TO EXCH key.
Do not press this key before the extension answers or the caller may be cut off.
The white light behind the key will glow while the extension user is speaking and will go out when the extension handset is replaced.
TO SPEAK TO EXTENSION WHILE MAIN OR EXTENSION ENGAGED ON AN EXCHANGE CALL press the SPK EXTN EXCH HELD
Key, and ring the
extension if necessary. The red light behind the key will glow. To speak on the
exchange line again press the SPK TO EXCH key.
TO CONNECT EXCHANGE LINE TO EXTENSION
Press the EXTN TO EXCH key. Leave
the key down if incoming calls are to be answered at the extension. The extension bell
will ring in addition to the main bell (or buzzer).
TO SPEAK TO EXTENSION WITHOUT CALLING EXCHANGE
Restore all keys to normal by pressing the RELEASE key,
which does not stay down. Ring the extension if necessary.
An external extension user, when calling the main, must press the button on his telephone before lifting the handset.
Make sure that the mains electricity is switched on.