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3) Hands-free Master Station
Privacy switch
Dial keys
Microphone
< Making a call >
1. Dial the desired station number regardless of whether
the Privacy switch of your station is in the ON posi-
tion or OFF position.
2. Start conversation after the calling tone stops.
3. When the line is busy, a busy tone is heard and you
can camp on the line by simply waiting. As soon as
the line becomes free, your call is automatically
connected.
4. While a continuous calling tone or Privacy tone is
being sounded, you can make a voice call by continu-
ously depressing the
5. When the party you call is in a high noise level area,
your continuously depressing the
one-way conversation to that party. As long as you
depress the
key, your voice has dominance
and releasing the
conversation from that party to you.
6. To terminate the conversation, depress the
All manuals and user guides at all-guides.com
Model HF-210M/210MB/670M/HS-670
Speaker
In-use lamp
Speaker volume
switch
HF-210M
key.
key allows
key will reverse the one-way
key.
< Responding to a call >
[Privacy switch is OFF.]
7. Respond to the call after the calling tone stops.
[Privacy switch is ON.]
8. A brief Privacy tone sounds from your station each
time there is an incoming call and all incoming calls
are refused.
To respond touch dial any key
other than the
between you and the calling party.
Note.
1. The sound volume of the speaker may be adjusted by
means of the 2-stage volume selector (VOL) switch.
2. With no speaker built inside, the HF-670M needs to
be connected to an external speaker. Also, the
HF-650M is fitted with no Privacy switch.
3. When the HF-670M is connected to the handset unit
HS-670, lifting up the handset responds to call.
— 5 —
PV Type
HS-670
HF-670M
key while the line is connected
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