Section 470 - TSAPI Programmer’s Guide
DBS-92-470
Issued April 2000
31
Established Event
Function: CSTAEstablishedEvent
Direction: C
←
S
Functional Description:
The Established Event Report indicates that the DBS detects that a device answers or con-
nects to a call.
The Established Event Report is sent as follows:
• When a call is delivered to a DBS extension and the party has answered the call (CSTA
Answer Call request, picked up handset or pressed the on/off key).
Service Parameters:
monitorCrossRefID
[mandatory] contains the handle to the monitor request for
which this event is reported.
establishedConnection
[mandatory] specifies the endpoint which joined the call.
answeringDevice
[mandatory] specifies the device which joined the call.
callingDevice
[mandatory] specifies the calling device. The following rules
apply:
• For internal calls originated at a DBS station - the station's
extension is specified.
• For incoming calls over a trunk the trunk number is speci-
fied.
calledDevice
[optional - partially supported] specifies the originally called
device.
lastRedirectionDevice
[optional - not supported] specifies the previously alerted
device in case where the call was redirected or diverted to the
answeringDevice
.
localConnectionInfo
[optional - not supported] specifies the connection state of the
monitored device for this call.
cause
[optional - not supported] specifies the reason for this event.
Failed Event
Function: CSTAFailedEvent
Direction: C
←
S
Functional Description:
The Failed Event Report indicates that a call cannot be completed or the monitored device
is the last remaining party in the call (i.e., listening to internal busy tone).
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