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CONFERENCE
LOUDSPEAKER
MODE
BusinessPhone 250 / BusinessPhone 50
Portable DT400 / DT410 / DT420 / DT430
You have a conversation and you want to establish a
telephone conference.
Press
Dial tone.
Call the third party
Press to establish a three party conference
Now you have established a three party conference. To mark
the conference, all conference members will hear a periodical
conference tone.
Repeat the procedure to include other persons to
the conference
In this way, you can include up to six parties in a
conversation. How many of them can be external callers
depends on the programming of the system.
End the call to leave the conference
During a call, you can set the volume of the earpiece to
maximum with pressing just one key. Then use the volume
buttons to increase or decrease the volume to a suitable level.
This function is extremely useful in situations when you
need to follow instructions over the phone while having your
portable clipped on.
Press to change to loudspeaker mode
The volume of the earpiece is set to maximum
and the microphone is muted.
Press again to return to normal mode
The volume of the earpiece is set to normal and
the microphone is turned on again.
DURING CALLS
19
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