Canon fax basic 2000 Servicehandbuch
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BASIC OF TELEPHONE
1.2
Making a Call
There are names for the party being called and the party making the call.
When we make a call, one of the two parties must first dial to call up the
other party by the bell on its telephone. Making a call in this way, that is,
dialing is called the “outgoing call”, and the call that arrives is called the
“incoming call”.
Fig. 1-3 Telephone Call State (1)
When you lift the handset, the handset is “off-hook”. When you hang up,
the handset is “on-hook”.
These days, some telephones have an on-hook button. For example, even if
the handset is placed on the telephone body, pressing this on-hook button
sets the telephone to the same state (on-hook) as when the handset is
picked up.
Fig. 1-4 Telephone Call State (2)
Outgoing call
Incoming call
Off-hook
On-hook