Sharp UX-B800 - Manual (Page 9)

7
Monitoring phone conversations
When speaking through the
handset, you can press to
allow a third person to listen to the
conversation through the speaker.
(To turn off the speaker, press the
key again.)
To adjust the volume of the speaker
when monitoring a conversation,
press or (the volume
reverts to the lowest setting each
time the handset is replaced).
Note that the speaker cannot be
used for speaking; it is only for
listening.
To avoid feedback (a loud howling
sound), be sure to turn off the
speaker (press once again)
before you replace the handset.
SPEAKER
SPEAKER
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