User`s guide

1.2 Overview
This user’s guide covers five different telephone models. The overall
operation of each telephone is very similar, but there are several
differences between the telephones:
• The 8112N and 8212N do not have speakerphone capability.
Therefore, you must lift the handset to perform any telephone
functions (making calls, answering calls, programming your
telephone, etc.).
• The 8112N and 8212N telephones cannot use the Group Listen
feature.
• The 8112N and 8212N telephones cannot use the Background Music
feature.
• The 8112N does not have any LEDs beside its programmable
buttons and, therefore, does not provide status indications for these
buttons.
• The 8112N does not have a MUTE key.
• The 8112N does not have a handset volume control.
• The IMIST module will only work with the 8212S and 8212N
telephones.
• The 8124S and 8112S telephones have a rocker-switch style volume
control instead of separate VOLUME UP and VOLUME DOWN
buttons.
• Message waiting lights:
– on the 8124S and 8112S telephones, the message waiting light is
above the HOLD button,
– on the 8112N, the message waiting light is above the numeric
keypad,
– on the 8212S and 8212N, there is a dedicated message button with
an associated light beside it.
• Only the 8212S and 8212N support the ICVOL handset with
independent volume control.
GCA70–249 Introducing The Telephone
Non-LCD Reference Manual 1 – 3