Using a Headset
Forum Phone 515/525/535 System Telephones
35
You have entered a call
number (block dialling/
automatic dialling).
K
Press the headset
key.
The call number is
dialled (LED of the
key
K
is illuminated).
or
g
Press the call key
and when necessary
L
press the hands-
free/open-listening
key.
Hands-free/open-
listening is switched on
(LED of the key
L
flashes).
You are telephoning
over the handset and
want to switch to the
headset.
K
Press the headset
key,
keep it pressed
and
h
replace the
handset.
You continue the call
over the headset (LED
of the key
K
is illumi-
nated).
You are telephoning in
hands-free/open-
listening mode (the
handset is on-hook, LED
of the key
L
is illumi-
nated); you want to
switch to the headset.
K
Press the headset
key.
Hands-free/open-
listening is ended (LED
of the key
L
is off);
you continue the call
over the headset (LED
of the key
K
is illumi-
nated).
You are telephoning
over the handset and
want to let a second
person listen in on the
call over the headset.
K
Press the headset
key.
Listening-in over the
headset is now acti-
vated (LED of the
key
K
flashes).
End listening-in:
K
Press the headset
key (LED of the
key
K
is off).
Situation:
Operation:
Result: