Nortel Meridian 1 Manual page 19

Table 1
Speaker Key Function
MODEL
M3820
M3310
M3110
The table below indicates the mode the terminal is in when the speaker key is
operated under the various switch and set operations.
Handsfree not
selected at the
switch
CPM and primary DN
key-Speaker LED is
not illuminated
CPM and Primary DN
key-Speaker LED is
not illuminated
CPM and Primary DN
key- Speaker LED is
not illuminated
Note 1: CPM is Call Process Monitor which enables the user to hear,
for example, the dial tone in the speaker. Group listening enables the user
to speak through the handset/headset microphone and one or more parties
can listen through the speaker, thus hearing both sides of the
conversation. In Handsfree mode, the user (or group of users) uses both
the handsfree microphone and speaker.
Meridian digital telephones
Handsfree selected
at the switch -
Group listening off
HF and Primary DN
key - speaker LED is
on when in Handsfree
mode
HF and Primary DN
key - Speaker LED is
on when in HF mode
N/A
Meridian 1 European Digital Telephones
Page 19 of 46
Handsfree selected at
the switch - Group
listening On
HF, Group listening and
Primary DN key - speaker
LED is on when in HF or
Group Listening mode
HF, Group Listening and
Primary DN key -
Speaker LED is on when
in HF or group listening
Group listening and
Primary DN key - speaker
LED is on when in Group
listening mode.