3-6 Operations and features
297-2041-900 Standard 02.01 October 1991
Release
The RELEASE (Rls) key performs a function similar to going on-hook -
when pressed, it terminates the currently active call. The LCD associated
with the released call changes from the ON state to the OFF state. If the
headset is not in use, the state of the set will remain off hook to the switch,
but with call idle (not busy line) until the handset is replaced in its cradle. If
the headset is being used, the M5212 ACD set will be available to receive
another call.
Hold
The hold function has two modes of operation, manual and automatic.
When a user is engaged in a call, that call can be put on hold either by
pressing the HOLD key or by pressing another DN key. In either case, the
LCD of the active call will change from ON to flashing quickly (winking),
and the user will be free to answer or make another call.
Dialpad
Before a call is established, no tone-feedback is provided when the dialing
keys are pressed. After a call has been established, end-to-end signaling
using Central Office (CO) generated Dual-tone Multifrequency (DTMF)
tones is enabled and tone-feedback is provided.
Volume control
The loudness of any sound which comes through the speaker, headset, or
handset (including ringing, dial tone, busy tone, and on-hook monitoring) is
controlled by one key with two toggle positions. Tapping or continually
pressing the key at the right side will increase the volume. Tapping or
continually pressing at the left side will decrease it. Headset volume is
controlled with the headset connected and the handset on hook. Handset
volume is controlled with the handset off hook. The volume settings for
both the headset and handset are controlled independently of each other.
Once they are set, ringer and speaker volume levels are maintained until
they are changed by the user or power is lost to the set. Disconnecting the
headset will cause its settings to revert to nominal. Similarly, placing the
handset back on hook will cause loss of its volume settings; the settings
revert to nominal.
The volume for alerting tones can only be adjusted while alerting is in
progress. The on-hook monitor volume can only be adjusted while
monitoring. Both volume levels are automatically stored, after completion
of adjustments, for subsequent calls, provided the local power supply (from
the ac transformer) is not interrupted. Note that an interruption of the local
power supply will occur not only if local power fails, but also if the linecord
is disconnected, because the local power supply is fed through the linecord.
