5
INTRODUCTION
GLOSSARY
OF TERMS
Base set number
The base set number is the local number assigned to
the base set for registration of a service. A handset of
this base set can have another number assigned to it.
Engaged handset
Somebody is using the handset.
Free handset
A registered handset ready to receive calls.
Handset number
A number by which the base set identifies a handset.
The current number of the hand set depends on the
current registration.
Key
Is a button on the telephone’s keypad.
Registration
The service registration is a prerequisite which must be
met before a handset can use the services of the base
set. Note that a handset can register with several base
sets.
Icon
Denotes a symbol with information on the operating
state of the device.
Tone
Denotes a tone generated by the receiver or loudspeaker
of the handset.
