During an external call
1 Press and hold 
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 [OK] to confirm.
»» The selected handset rings.
3 Press 
on the selected handset. »» The intercom is established.
4 Select [Conf] on your handset.
»» You are now on a
5 Press 
to end the conference call.
Note
•• Press [Conf] to join an ongoing conference with another handset if [Services] > [Conference] is set to [Auto].
During the conference call
Press and hold 
, you can:
•put the external call on hold and go back to the internal call.
»» The external call is put on hold.
•toggle between the external and internal call.
•establish the conference call again.
Note
•• If a handset hangs up during the conference call, the other handset remains connected to the external call.
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