Nortel BCM50 2.0 Configuration Manual page 169

Figure 56 IP audio conference phone 2033 default button formatting
Table 55 IP audio conference phone 2033 default button formatting
Chapter 21 Default memory button programming for telephones
Use the Volume control buttons to adjust
the volume of the ringer and speaker.
Press the Mute button on the main unit or
any extension speaker to mute the ringer
and speaker.
Press the Mute key on the extension
microphone to toggles the mute state of the
entire telephone, not just that microphone.
Press the Line (DN) key to access the
single line and activate on-hook dialing. No
status icon or LED is provided.
Press the Release key to terminate an
active call.
Press the Hold key to put an active call
on hold. Press the Line (DN) key to return
to the caller on hold.
Device Configuration Guide
169