ASAI and Domain Control

Third Party Selective Hold

The adjunct uses this capability to place a controlled extension on hold. The effect is as if the specified party depressed the hold button on his or her terminal to locally place the call on hold. For analog sets (phones) with only one call active, selective hold places the call on conference hold (the same as if the switch-hook was flashed once). For analog sets which already have a held call, this request places the active call on hard hold.

Information Flow

The adjunct expects a response to its request.

The ECS either:

Places the call on hold and sends the adjunct an acknowledgement, or

Denies the request (see causes below)

Third Party Selective Hold Parameter

call_id

[mandatory] Identifies the call to be placed on hold

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:

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

Invalid number/domain (CS0/28)

The number contained in the request is an invalid call_id value.

Invalid state (CS0/98)

The call is not in the talking state in order to be put on hold.

Mandatory IE missing (CS0/96)

The required call_id is missing in this request.

Invalid information element contents (CS0/100)

The party_id or call_id value of the request is invalid (for example, the party is alerting).

User Busy (CS0/17)

The user is busy with another ASAI request.

Issue 7 May 1998 5-13

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Lucent Technologies 555-230-220 manual Third Party Selective Hold Parameter