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7. ISDN Events and Errors
331
External Event Indicates:
SndMsg_Drop message type via the
cc_SndMsg( ) function.
The CCEV_CONFDROP event has two
different meanings that depend upon the type
of call:
Two-party call - the event is a request to
disconnect the call. The application should
respond by issuing a cc_DropCall( ).
Conference call - the event is a request to
remove the last party that was added to the
conference. The application needs to respond
to this request with either a
SndMsg_DropAck or SndMsg_DropRej
message to indicate the acceptance or
rejection of the request. If the request is
accepted, the party is dropped from the
conference.
The CCEV_CONFDROP event only pertains
to a Custom BRI 5ESS switch type.
CCEV_CONGESTION A CONGESTION message has been
received by the application, indicating that
the remote end is not ready to accept
incoming user information.
Use the cc_GetCallInfo( ) function to
retrieve additional information about the
event.
CCEV_D_CHAN_STATUS The D channel status was changed as a result
of the event on the D channel.
Refer to the sample code in the
cc_GetSAPI( ) and cc_GetCES( ) function
descriptions for more information.
CCEV_DISCONNECTED A DISCONNECT, RELEASE COMPLETE,