Administrable Language Displays

You cannot administer languages for ACA messages.

Communication Manager Messaging

Do not set the referral-call extension to a telephone that covers to a Communication Manager Messaging voice messaging system. You can overload Communication Manager Messaging with the volume of calls, because ACA calls remain active for up to three minutes.

Busy Verification

Once you identify a potentially defective trunk, you can use Busy Verification to check that trunk.

Centralized Attendant Services (CAS)

When CAS is activated, the referral-call destination must be on the local switch. 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.

Distributed Communications System (DCS)

Referral calls can be placed across a DCS network. The primary switch is administered to receive ACA referred calls from remote nodes for all switches within the network. You must administer the ACA Remote PBX Identification field on the Feature-Related System Parameters screen with the PBX ID of the node that is designated as primary.

If ACA referral calls are sent off the switch that generates the referral, the display and voicing information that indicates the failed trunk is lost, even if the referral call is made over a DCS network.

Night Service

The system does not place referral calls to the attendant if the system is in Night Service mode.

Visually Impaired Attendant Service (VIAS)

If the attendant presses the Display Status button and an ACA call has not been answered, the words Automatic Circuit Assurance are voiced.

If a visually-impaired attendant presses the Display Status button and the ACA call has been answered, the words Automatic Circuit Assurance and the extension that is assigned to the ACA call are voiced.

If the switch contains a voice-synthesis board, ACA referral calls are also accompanied by an audible message that identifies the type of ACA infraction encountered. The message is Automatic circuit assurance <long> or <short> holding time threshold has been exceeded for trunk group <#> member number <#>.

Voice Message Retrieval

If you use Voice Message Retrieval, you can assign a non-display telephone as a referral destination.

Wideband Switching

ACA treats wideband-trunk calls as a single-trunk call, and therefore triggers a single referral call. The call information shows the lowest B-channel trunk member that is associated with the wideband channel.