GAI-TRONICS
VoIP Telephone Configuration Guide
Page 8 of 78
Handset phone
Used to denote a telephone from the GAI-Tronics Titan or Commander product ranges, with a
separate handset attached to the main telephone body by a heavy duty flexible cord. No
separate loudspeaker is fitted to these models.
Hands-Free phone
Used to denote a telephone from the GAI-Tronics Help Point or Vandal Resistant product
ranges, with a microphone and speaker integrated into a flat panel. No corded handset is
fitted to these models.
LNR
Standing for “last number redial”, this is a button provided on some models of GAI-Tronics
phone to redial the last manually dialled number.
Memory dial number
On an analogue or cellular phone, memory numbers are pre-stored digit sequences used to
start calls. With VoIP these can also be URI
’s rather than numbers, but are still referred to in
the same way.
Mute
A function to temporarily mute the microphone so that the remote party cannot hear. On GAI-
Tronics telephones this function is provided by the "S" button.
NU tone
Number unobtainable tone
– used to indicate that a call cannot connect due to the end point
not being recognised.
Off hook
Used to denote the state of a telephone during an active call, or when a call has been
initiated. For a handset phone, off hook usually means that the handset is lifted.
On hook
Used to denote a telephone in the idle state
– no call started or answered. A telephone is still
on hook when it is ringing on an incoming call. For a handset phone, on hook usually means
the handset is not lifted. If a call is terminated whilst the handset is still lifted (for example by
the CALL LIMIT timer), the telephone is placed into the on hook state. For a hands-free
phone, on hook means that no ON or WAKE & DIAL button has been pressed following a
terminated call or reset.
Register Fail tone
A tone played to the user initiating a call to indicate that the telephone is not currently
registered with a registrar, meaning that a call cannot be made.
Ring tone
A tone played to the user initiating a call to indicate that the call has been placed but not yet
answered. This usually signifies that the remote end is ringing.
Ringing
A loud alert tone made by the telephone indicating that an incoming call is ready to be
answered.
Secrecy (mute)
A function to temporarily mute the microphone so that the remote party cannot hear. On GAI-
Tronics telephones this function is provided by the "S" button.
Sidetone
On handset phones, part of the microphone signal is fed to the earpiece so that the user can
hear his or her own voice during the call. This makes it a more natural experience, and has
been a feature of analogue telephones since their invention. Not used on hands-free phones.