Ericsson DT288 User Manual page 21

CONFERENCE
BusinessPhone 250 - Portable DT288
BusinessPhone 50 - Portable DT288
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 CALLS
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