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18 EN
During an external call
1 Press and hold to initiate an internal
call.
» The external caller is put on hold.
» For multi-handset versions, The
handsets available for intercom are
displayed. Then go to step 2.
» For two-handset versions, the other
handset rings. Then go to step 3.
2 Select a handset, then press [OK] to
conrm.
» The selected handset rings.
3 Press on the selected handset.
» The intercom is established.
4 Press [Conf].
» You are now in a 3-way conference
call with an external call and a selected
handset.
5 Press to end the conference call.
Note
• Press to join an ongoing conference with another
handset if > [Conference] is set to [Auto].
During the conference call
• Press [Int.] to put the external call on hold
and go back to the internal call.
» The external call is put on hold.
• Press [Conf] 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.