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Section 470 - TSAPI Programmer's Guide
Service Parameters:
Ack Parameters:
Nak Parameter:
Notes:
Conference Call Service
This service provides the conference of an existing heldCall (C1-D1), and another activeCall
(C2-D1) at the same device. The two calls are merged into a single call, (C3) and the two
connections (C1-D1, C2-D1) at the conferencing device (D1) are resolved into a single con-
nection, newCall (C3-D1), in the Connected state.
DBS-92-470
The connection is left in the Null state. The connection identifier is no longer associated
with the call. The party to be dropped must be an extension.
A connection in the alerting or held state cannot be cleared.
call
noData
universalFailure
•
INVALID_OBJECT_STATE (22)
The specified connection at the station is not currently active (in alerting or held state)
so it cannot be dropped or the station user is off-hook.
•
NO_ACTIVE_CALL (24)
The connectionID contained in the request is invalid. CallID may be incorrect.
•
NO_CONNECTION_TO_CLEAR (27)
The connectionID contained in the request is invalid. CallID may be correct, but devi-
ceID is wrong.
•
RESOURCE_OUT_OF_SERVICE (34)
The DBS is off-line.
•
OUTSTANDING_REQUEST_LIMIT_EXCEEDED (44)
The application has too many outstanding CSTA requests.
•
MISTYPED_ARGUMENT_REJECTION (74)
DYNAMIC_ID is specified in alertingCall.
•
GENERIC_UNSPECIFIED (0)
Internal driver error.
•
Switch Operation - When a party is dropped from an existing conference call with
three or more parties (directly connected to the switch), the other parties remain on
the call. If this was a two-party call, the non-dropped party is listening to busytone.
Only connected parties can be dropped from a call. Held and alerting parties cannot
be dropped by the Clear Connection Service.
Issued April 2000
[mandatory] a valid connection identifier indicates the
endpoint to be disconnected.
None for this service.
7
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