If no CPA ports are available, the inpulse rule is aborted. When the port is considered to be answered, the CPA port is released. Support Add SPC cards to the system database using the system administration Card Maintenance menu. When an SPC is added, the system controller assigns the first available contiguous block of port addresses to the card. As with all other service circuits, all CPA ports must be added to a single resource group to be used for call processing.
System administration allows only one resource group to be created for each service circuit type.
Additional logfile, printer, and on-screen messages are provided for CPA support. Call Progress Tones diagnostic utilities. When used to set up a voice path, the CPA must be used as a receiver only. The Call Progress Tone Monitor screen allows a CPA port to monitor the call progress tones during an active call, specifying the signaling events detected. To perform call progress tone detection, the SPCs must be configured for CPA operation.