Canon 700 Series - Manual (Page 240)

Using the Telephone 10-3
Other Special F
eatures
10
3
When the other party answers your call, speak into the
handset.
If you did not pick up handset in step 1, pick up the handset as soon as you hear
the other party answer. The other party cannot hear you until you pick up the
handset.
NOTE
If the other party does not answer, or if the line is busy, hang up the handset, press
(Hook), or
(Stop) to disconnect.