ASAI and Call Control

Call rejected (CS0/21)

The ECS drops the call due to an illegal action and/or request by the user (for example, attempting to merge two outbound calls without disconnect supervision).

No answer (CS3/19)

The classifier does not detect answer within the allowed number of rings.

Answering Machine Detected (CS3/24)

The call was answered by an answering machine.

Incompatible Destination (CS0/88)

The classifier detects answer back tone.

No Circuit or Channel Available (CS0/34)

Unassigned Number (CS0/01)

Invalid Number/Domain (CS0/28)

Normal Unspecified/SIT — Vacant (CS0/31)

Normal, Unspecified (CS0/127)

This value is a normal drop cause value when something other than an ISDN endpoint drops out of a connection. For example, when the host issues a Third Party Make Call (User-Classified) from a station to an announcement extension and the call is successfully completed. The calling party hears the announcement and the call is dropped. The Disconnect/Drop Event Report is also generated. See Chapter 3, ‘‘Event Reporting and U-Abort Capabilities’’ for more information on the Disconnect/Drop Event Report.

Denial/Reorder (CS3/42)

Provided when a Switch-Classified call (that has been answered by the far end cannot be transferred to the intended split/VDN.

Issue 7 May 1998 4-75

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Lucent Technologies 555-230-220 manual