AT&T 75 manual Centralized Attendant Service CAS V3 and Generic 1 Systems, Description

CHAPTER 6. CENTRALIZED ATTENDANT SERVICE (CAS)

CHAPTER 6. CENTRALIZED ATTENDANT SERVICE (CAS)

(V3 AND GENERIC 1 SYSTEMS)

Description

The CAS feature allows system users served by separate switches at two or more locations to concentrate the attendant positions at one location. This location is called the CAS main. The other locations, typically without attendants, are called CAS branches. All locations within the CAS environment have separate Listed Directory Numbers (LDNs).

Incoming calls to the CAS main are handled as if the switch is a stand-alone system. Any attendant-seeking calls at a CAS branch are routed to the attendant consoles at the CAS main over Release Link Trunks (RLTs). The RLTs are special trunks that are used only for attendant-seeking calls from the CAS branches. The CAS attendant cannot originate a call over an RLT.

The CAS calls may be any calls that would normally go to the local attendant console. The CAS attendant answers these calls and then extends them (over the same RLT) to the requested extension or external number at the branch. When the CAS attendant releases, the RLT is free for another call. The extended call will return to a CAS console if it is not answered within a preset time.

The CAS calls can also be held at the console, placed on Remote Hold, or released (ended). The CAS calls can be held on the console the same as any other call. Remote Hold is a feature used by CAS attendants that allows a call to be held at the branch location. This feature frees the console and the RLT for other calls. As with extended calls, a call on Hold or on Remote Hold will return to a CAS console if it is not answered within a preset time.

To speed the dialing procedure when extending a CAS call, the CAS attendant can use the following features:

ŽAbbreviated Dialing

Ž Attendant Direct Trunk Group Selection

ŽDirect Extension Selection (DXS) With Busy Lamp Field (BLF) (if a selector console is provided)

Note: The DXS does not indicate busy extension numbers at the branch locations.

ŽFacility Busy Indication.

Also, when extending a CAS call, the attendant can use some of the branch features such as Code Calling Access and Loudspeaker Paging Access.

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