Interactions for Centralized Attendant Service

Last Updated : Oct 03, 2016 |

This section provides information about how the Centralized Attendant Service (CAS) feature interacts with other features on the system. Use this information to ensure that you receive the maximum benefits of Centralized Attendant Service (CAS) in any feature configuration.

Abbreviated Dialing

The main attendant can use an Abbreviated Dialing button to extend CAS calls after the attendant obtains branch dial tone.

Attendant Auto-Manual Splitting

The Split lamp and button do not function on CAS calls to the main location that are extended through RLTs. Attendant conference does not function on CAS calls.

Attendant Control of Trunk Group Access

If a branch attendant has control of an outgoing RLT trunk group, the system routes new attendant-seeking calls to the branch attendant.

Attendant Override of Diversion

Use Attendant Override of Diversion with CAS.

Attendant Serial Calling

Attendant Serial Calling does not work for CAS calls.

Automatic Alternate Routing (AAR) and Automatic Route Selection (ARS)

You can use AAR and ARS to route CAS calls.

Automatic Circuit Assurance (ACA)

When CAS is activated, the ACA Referral Calls field on the Feature-Related System Parameters screen must be set to local. The system interprets a referral destination of 0 as the local attendant, if a local attendant exists. The CAS attendant cannot activate or deactivate ACA referral calls at a branch location.

Busy indicators can identify incoming calls over an RLT. You can also use Busy indicators to dial after the attendant starts to extend a call.

Busy-Indicator Buttons

Call Coverage

Use Call Coverage to redirect calls to a centralized attendant. Do not redirect calls to a CAS backup extension for backup service through Send All Calls to the coverage path of the backup extension.

Call Detail Recording (CDR)

If the CAS main RLT has the CDR option selected, the system generates CDR records for incoming CAS calls.

Call Forwarding

Do not forward calls to a CAS extension.

Call Park

If a CAS attendant parks a call and the call returns to the attendant after the Call Park expiration interval, the attendant hears incoming trunk-call notification.

Class of Restriction (COR)

Since COR information is not passed over RLTs, fully restricted service supports all CAS calls. Therefore, the system can use CAS to complete a public network call to a fully restricted telephone.

Distributed Communications System (DCS) operation

If an RLT trunk group is administered as a DCS trunk, the DCS message displays instead of the name of the incoming RLT trunk group on an incoming CAS call to the attendant. When the attendant answers the call, the attendant hears call identification tones. These tones indicate that the call is a CAS call. The attendant must use a Trunk-Name button to obtain the name of the RLT trunk group.

DXS and DTGS Buttons

DXS and DTGS buttons at the main attendant console can be used with CAS. With the DXS button, the attendant hears ringback tone after a delay of a few seconds.

Emergency Access to the Attendant

For CAS Branch Emergency Access calls that generate by a Feature Access Code, the system routes Off-Hook Alert to the branch attendant group. If there is no attendant in the branch, the system routes the call to the administered Emergency Access Redirection Extension of the branch. When the branch system is in CAS Backup Service, the system routes the calls to the backup telephone. The call is treated as a normal call.

Extending a CAS call by a nonattendant

CAS branch calls terminate at the CAS main location, based on the day-destination or the night-service destination of the incoming RLT trunk group. You can also answer a CAS call with the TAAS feature.

Usually, a nonattendant presses the Flash button to extend a CAS call. However, if the nonattendant does not have a Flash button, a nonattendant can extend the call in one of the following ways:

  • Multiappearance telephone users can press the Conference or Transfer button, and then dial the extension. To complete the call, the user drops the call. To drop the extended-to party, the user presses the Conference or Transfer button again.

  • Single line telephone users can flash the switch hook, and then dial the extension. To complete the call, the user drops the call. To drop the extended-to party, the user flashes the switch hook again.

Holding a CAS call by a nonattendant

A nonattendant with a multiappearance telephone can press the Hold button to hold a CAS call.

Hunt Groups

If the system directs an incoming CAS call to a hunt group, the system does not redirect the call to the coverage path of the hunt group. Depending on the circumstances, the attendant can get a busy tone or ringing.

Last Number Dialed (LND)

An attendant cannot extend calls with the LND feature.

Leave Word Calling (LWC)

If a message is left for a branch user, and the attendant at the CAS system tries to retrieve the message, permission is denied.

Night Service, Night Console Service

When the attendant places the CAS main location in Night Service, CAS calls terminate at the CAS main night-service destination. When an attendant places a branch location in Night Service, the system routes the CAS calls to the branch night console, to the LDN night telephone, or to the TAAS telephone.

Night Service, Trunk Answer from Any Station (TAAS)

In a multisystem DCS environment with CAS, transferring incoming trunk calls through Night Service Extension or TAAS varies. Such a transfer depends on the:

  • Home system of the transferred-to telephone

  • Home system of the connected trunk

  • Type of night-service function that is chosen. The type of night-service function can be Night Service Extension, TAAS, or both Night Service Extension and TAAS.

Nonattendant. Display Trunk Name

If a nonattendant with a display telephone presses the Trunk Name button while the nonattendant is active on a trunk call, the system displays the value in the Name field from the Trunk Group screen.

QSIG CAS

The QSIG CAS service is not provided through the RLT trunks, as the QSIG CAS service is administered when the Centralized Attendant field is set to y on the QSIG Optional Feature screen.

Releasing a CAS call by a nonattendant

A nonattendant can drop the RLT by going on-hook, and then use the Disconnect or Drop button. A nonattendant can also drop the RLT by selecting another call appearance.

Security Violation Notification (SVN)

CAS attendants cannot receive referral calls from branch locations.

Timed Reminder

You can set the timer value for recalling held calls at the attendant console on the Console screen.

If an attendant at the CAS main location transfers a call from a branch to an extension at the main location, the timed reminder does not apply. The call does not return to the attendant if unanswered. If a branch call is unanswered, the branch timed reminder times out, and the system routes the call to a new RLT trunk, and back to a CAS main attendant.

Trunk-Name button

Use the Trunk-Name button when you make an outgoing call over a trunk that is administered to have no outgoing display.