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C-20
Centralized Attendant Service (CAS)
General Description
For applications requiring multiple sites, but having common interests or operation, the NEAX2400 ICS
can operate in a Main (attended) or Satellite (unattended) configuration. Typically, incoming calls to the
satellite are routed to the main location for processing by the Central Attendant(s) within the CAS network.
This service feature can be used to improve overall communication efficiency.
Operating Procedure
Listed Directory Number (LDN) Call:
1.
Upon arrival of an LDN call at a satellite system, the LDN call is automatically directed to the main
system via a release link trunk.
2.
Upon receiving the incoming CAS call, the ATTENDANT CONSOLE(s) [A-3] will display the
incoming CAS call by flashing the "CAS" lamp.
3.
The Attendant answers the incoming CAS call by pressing the "CAS" or "ANS" key; hears the
Incoming Call Tone (480 Hz - 440 Hz - 480 Hz) for 300 msec.
4.
The Attendant operates the "SHF" key causing a switchhook flash; hears Special Dial Tone from
the satellite system.
5.
The Attendant dials the required station number in the satellite system.
6.
Upon hearing Ringback Tone, the Attendant presses the "RELEASE" key to make the release
link trunk available to serve another call.
Recall on Don't Answer Call:
1.
A satellite system is arranged to re-establish a connection from a calling party via a release link
trunk to an Attendant in the main system, if the called station does not answer within a prefixed
time.
2.
Upon receiving the recall on a No Answer Call, the ATTENDANT CONSOLE(s) [A-3] will display
the incoming CAS call by flashing the "CAS" lamp.
3.
The Attendant answers the incoming CAS call by pressing the "CAS" or "ANS" key; hears
continuous Ringback Tone (440Hz + 480 Hz) for 300 msec.
4.
After hearing the burst of continuous Ringback Tone, the Attendant and the calling party
converse over Ringback Tone because of ringing the called station continuously during recall
connection.
5.
If the calling party indicates a desire to hold the connection, the Attendant presses the
"RELEASE" key to make the release link trunk available to serve another call.
Camp-on:
1.
If the Attendant directs the satellite system to connect a call to a busy station, the satellite system
transmits a Camp-On confirmation tone (100 msec burst of 440 Hz) to the Attendant, also a
Camp-On Indication Tone (200 msec burst of 480 Hz) to the called station, and then reconnects
the calling party to the Attendant.
2.
If the calling party indicates a desire to wait, the Attendant presses the "RELEASE" key to make
the release link trunk available to serve another call.
3.
If the Camped-On station remains busy for longer than the prefixed time, the satellite system
reconnects the calling party via a release link trunk.
4.
Upon receiving the recall on a Camped-On call, the ATTENDANT CONSOLE(s) [A-3] will display
the incoming CAS call by flashing the CAS lamp.
NEAX2400 ICS Business Features and Specifications
NDA-24143, Issue 4
Centralized Attendant Service (CAS)
C-20
Page 143
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