ASAI and Call Routing

Permission denied (CS3/43)

Only incoming trunks (of any type, including ISDN, DTMF, and R2MFC) are eligible for ASAI-Requested Digit Collection. If the originator is not a trunk, a Route Select with the ASAI-Requested Digit Collection option is denied.

A call prompter/tone detector is not connected if the originating trunk (to which the tone detector is to be connected) does not have incoming disconnect supervision administered. The Route Select fails, the ECS sends a Route End, and the call continues in vector processing.

Call has been terminated (CS0/86)

If the call drops (for example, the caller abandons, a vector disconnect timeout occurs, a non-queued call encounters a “stop” step, or an adjunct clears the call), all outstanding Route Requests are cancelled.

Timer Expired (CS0/102)

The ECS does not accept digits from a Route Select received after the corresponding Route Request was cancelled.

Protocol Error (NAK) Causes

None for this capability

Considerations

If the Route Select is received after a Route End is sent, it is ignored by the ECS and vector processing continues.

7-10Issue 7 May 1998

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Lucent Technologies 555-230-220 manual Protocol Error NAK Causes