Nortel Networks NN43110-101 - Manual (Page 106)

Terms you should know
Special Prefix code (SPRE)
Special codes entered using the dialpad, followed by a two-digit
access code, that enable features (for example, Call Forward All
Calls requires entry of SPRE code + 74).
Soft keys
A set of keys programmed by your system administrator. These
four keys, located directly below the display area, have four
programmable layers. These keys are also used to configure
parameters in the Telephone Options menu.
Special dial tone
The three consecutive tones followed by dial tone that you hear
when accessing telephone features.
Station Control Password (SCPW)
Enables security features on your phone to prevent others from
making calls from your telephone and to prevent access to
protected features (for example, Remote Call Forward).
Status Messages
A message displayed to inform the user of important information.
A right arrow appears if more than one Status Message is
present. Examples of Status Messages include: Message
Waiting, All Lines Forwarded to: 6453, Do Not Disturb On, Ring
Again active, and Ringer is OFF.
System or Switch
Your office communication system.
Switchhook
A button on which the handset presses down, disconnecting your
call when you replace the handset. The handset (when lifted)
releases the switchhook, and you either answer an incoming call
or you receive a dial tone to make a call.