Philips B155 Extended User Documentation page 16

During the conference call
1
Press and hold
on hold and go back to the external call.
» The internal call is put on hold.
2
Press and hold
call on hold and go back to the internal call.
» The external call is put on hold.
3
Press MENU/OK to go back to the
conference call.
Note
•
If a handset hangs up during the conference call, the
other handset remains connected to the external call.
EN
14
to put the internal call
again to put the external