Nortel Meridian SL-100 Reference Manual page 57

Handsfree/group listen key and indicator
Press the handsfree key to use the speaker (with built-in microphone) instead
of the handset/headset. The handsfree LED lights when in handsfree mode.
Use the options mode or take the handset off-hook to return switch back to the
handset/headset at any time during the call. In group listening mode, the
handsfree indicator flashes. Refer to the Service Order Reference Manual for
Group Listen functionality.
Mute key and indicator
Press the mute key to mute the voice transmit path. While in handsfree mode,
the microphone is muted. When in mute mode, the mute indicator flashes. To
turn the voice transmit path on again, the user can press the mute key a second
time.
Headset with LED
Press this key to activate headset mode. The LED alerts the user that the set is
in headset mode.
Message key
This is a fixed feature key that corresponds to feature/option key 17. This key
must be programmed using SERVORD commands. Although it is permanently
labeled as message, it does not have to be datafilled as such. In order to access
voice mail without a message waiting, Nortel Networks recommends
assigning message to key 1 and autodial to the message key (key 17.) The
autodial key should be programmed with the voice mail system DN.
Quit key
Press the quit key to cancel actions and for applications and features.
Directory/log key
The following directories are optionally password protected. The directories
accessible by this key are:
• personal directory with a maximum of 100 entries
• call log with a maximum of 100
• redial list with a maximum of 20 entries
Application key
Use this key to connect to applications located on a remote server.
Note: This key is used to access the corporate directory application.
Copy key
Use the copy key for applications and features.
MSL-100 M3900 Meridian Digital Telephones Reference Guide MSL15
M3904 professional telephone 7-7