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ASAI and Domain Control
Issue 7 May 1998
5-23
Third Party Selective Drop
The adjunct uses this controlling capability to drop a controlled extension from a
call.
Information Flow
The adjunct expects a response to its request.
The ECS either:
— Drops the party once it has validated the parameters, or
— Denies the request if it could not execute the disconnect operation or if the
call_id specified does not exist (invalid parameter).
Third Party Selective Drop Parameters
ACK (Positive Acknowledgement) Parameters
No parameters are contained in the acknowledgement for this capability.
Denial (NAK) Causes
The ECS issues one of the following reasons as the cause for ending the
association:
■ Mandatory information element missing (CS0/96)
The call_id is missing from the request.
■ Invalid association (CS0/81)
The association does not exist.
■ Message not compatible with call state (CS0/98)
The call is not currently active or in a hold state and therefore cannot be
dropped.
■ Invalid information element contents (CS0/100)
The call_id value is invalid (for example, it is alerting).
■ Invalid Information Element contents (CS0/100)
The UUI IE is longer than 32 bytes.
call_id [mandatory] Identifies the call to be disconnected
uui_info [optional] If an ASAI adjunct provides UUI in a 3rd Party
Selective Drop, then the ECS stores that UUI with the call.