ASAI and Call Control

Third Party Reconnect

The adjunct uses this controlling capability to reconnect an on-ECS party to a controlled call.

Information Flow

The adjunct expects a response to its request.

The ECS either:

Reconnects the party to the call after validating the parameters, or

Denies the request

Third Party Reconnect Parameters

party_id

Identifies the party to be reconnected

ACK (Positive Acknowledgment) 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 denying the request:

Invalid association (CS0/81) The association does not exist.

Invalid number/domain (CS0/28) The party_id is incorrect or invalid.

Invalid Information Element contents (CS0/100)

The party_id value of the request is invalid. For example, a Third Party Reconnect is sent for the destination of a ringing call (the call is ringing and not yet answered at that endpoint). The party_id specified in the party_id Information Element has not passed through the connected stage and is therefore invalid.

Message not compatible with call state (CS0/98)

The party is not currently in the “hold” state so it cannot be reconnected. The party was on-hook and did not go off-hook within five seconds after the request was made (the call remains on hold).

Resources not available (CS3/40)

The host attempted to connect a seventh party to a six-party conference call.

4-46Issue 7 May 1998

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Lucent Technologies 555-230-220 manual Third Party Reconnect Parameters, ACK Positive Acknowledgment Parameters