P6
15.
SPD:
on hook status, press this key, and input speed
dialing group number, to make speed dialing function. Off
hook status, press this key, input system speed dialing
group number, to make peed dialing function.
16.
ICM:
press this key, system is in intercom status, the light
is on
16.
TRK:
press this key, system is in CO line access status, the
light is on, equal to off hook + 9
17.
TR.:
press this key, and input another extension number, to
transfer the call to another extension.
18.
HOLD:
during the call with C.O line, press this key, to hold
the current call, after finish the call with another C.O line,
press corresponding DSS key, to continue with previous call
19.
RD:
off hook, press this key, system will auto call the last
dialed number. You can select incoming/outgoing call
records to press redial.
