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ASAI and Call Control
Issue 7 May 1998
4-39
Third Party Take Control
The adjunct uses this initiating capability to control a call already in progress.
Information Flow
The adjunct expects a response to its request.
An acknowledgement is sent to the controlling adjunct if the request is successful.
As part of the acknowledgement, a party and extension list of all parties on the call
(for all on-ECS extensions on the call) are provided.
NOTE:
The address list may contain parties in an alerting state as well as a group
extension (for example, if the call is in queue and has not been delivered to
an agent).
If the request is unsuccessful, the ECS denies the request and sends the adjunct
the appropriate cause code.
Third Party Take Control Parameters
ACK (positive acknowledgement) Parameters
The ECS responds with a list of up to six party identifiers (party_id) for the parties
on the call and a list of up to six extensions of the parties on the call.
call_id [mandatory] A call identifier for the call to be controlled. The
value is typically obtained through the Event Notification or
Value Query capabilities.
party_id list Provided by the ECS and sent to the adjunct in the
capability’s acknowledgment. The party_id list contains the
party_id for every party on the call. Each party identifier
corresponds to an entry in the extension list.
extension
list
Specifies the extension address of each on-ECS party to the
call. Addresses of every on-ECS party on the call are
provided for alerting, connected, or queued parties. The
address for queued parties is the split extension of the
queue. The default is provided for off-ECS parties.