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20 EN
During an external call
1 Press INT to initiate an internal call.
The handsets available for intercom are »
displayed.
The external caller is put on hold. »
2 Select or enter a handset number, then
press [SELECT] to conrm.
The selected handset rings. »
3 Press on the selected handset.
The intercom is established. »
4 Press and hold INT on your handset.
You are now on a 3-way conference »
call with the external call and the
selected handset.
5 Press to end the conference call.
Note
Press • to join an ongoing conference with
another handset if [ADVANC. SETTINGS] >
[CONFERENCE] is set to [ON].
During the conference call
1 Press INT to put the external call on hold
and go back to the internal call.
The external call is put on hold. »
2 Press INT to toggle between the external
and internal call.
3 Press and hold INT to establish the
conference call again.
Note
If a handset hangs up during the conference •
call, the other handset remains connected to
the external call.