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LINECALLORIGIN_ Constants
The LINECALLORIGIN_ constants describe the origin of a call.
LINECALLORIGIN_OUTBOUND
The call originated from this station as an outbound call.
LINECALLORIGIN_INTERNAL
The call originated as an inbound call at a station internal to the same
switching environment.
LINECALLORIGIN_EXTERNAL
The call originated as an inbound call on an external line.
LINECALLORIGIN_UNKNOWN
The call origin is currently unknown but may become known later.
LINECALLORIGIN_UNAVAIL
The call origin is not available and will never become known for this call.
LINECALLORIGIN_CONFERENCE
The call handle is for a conference call, that is, it is the application's
connection to the conference bridge in the switch.
LINECALLORIGIN_INBOUND
The call originated as an inbound call, but the service provider is unable to
determine whether it came from another station on the same switch or from an
external line.
No extensibility. All 32 bits are reserved.
The origin of a call is stored in the dwOrigin field of the call's LINECALLINFO structure.
For backward compatibility, it is the responsibility of the service provider
to examine the negotiated API version on the line, and to not use the
LINECALLORIGIN_INBOUND value if it is not supported on the negotiated version
(LINECALLORIGIN_UNAVAIL may be substituted).
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