Monitoring phone conversations

When speaking through the

SPEAKER

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

speaker (press once again) before you replace the handset.

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Sharp UX-B800 manual Monitoring phone conversations, When speaking through, Used for speaking it is only for listening