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GROUP LISTENING
This feature allows users to turn on the speaker while using the handset. It allows
a group of people to listen to the distant party over the speaker without the micro-
phone turned on.
HEADSET OPERATION
Every keyset can be programmed to allow the use of a headset. In the headset
mode, the hookswitch is disabled and the ANS/RLS key is used to answer and
release calls. Keyset users may turn headset operation ON/OFF by keyset pro-
gramming or more easily by pressing the headset ON/OFF key. The headset key
lights steady red when the keyset is in headset mode. The ANS/RLS key lights if
headset mode is activated by keyset programming only.
HEARING AID COMPATIBLE
All DCS 400si keysets are hearing aid compatible as required by Part 68 of the
FCC requirements.
LINE QUEUING WITH CALLBACK
When the desired outside line is busy, the user can press the CALLBACK key or
dial the access code to place his/her station in a queue. The user will be called
back when the line is available (a maximum of 100 callbacks are allowed system-
wide at one time including busy station and busy trunk).
LINE SKIPPING
When the user is talking on an outside line and the automatic hold feature is turned
off, he/she may press an idle line key and skip to that line without causing the
previous call to go on hold.
LOUD RINGING INTERFACE
The DCCP has 2 relays and the DMAP1 has 4 relays that can be programmed to
provide a dry contact closure for control of a customer provided loud ringing device.
Any of these relays can be programmed to operate with a specific station or station
group.
MANUAL SIGNALLING
Keysets can signal each other via a programmable key. This allows one station to
alert another without establishing a voice conversation. Each press of the key re-
sults in a 500 milliseconds of ring tone being sent to the intended station. An indi-
vidual manual signalling key must be programmed for each station to be signalled.
MESSAGE WAITING LIGHT/INDICATION
When a message indication is left at a keyset, the MESSAGE button will slowly
flash red. Single line telephones will receive a distinctive dial tone to notify them
that a message is waiting. Message waiting indications can be left for any station or
group of stations.
4.2.4
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