LINE_ADDRESSSTATE (TSPI)

This message is sent to the LINEEVENTcallback function when the status of an address changes on a line that is currently open by TAPI.

LINE_CALLINFO (TSPI)

This message is sent to the LINEEVENTcallback function when the call information about the specified call has changed.

LINE_CALLSTATE (TSPI)

This message is sent to the LINEEVENTcallback function whenever the status of the specified call has changed.

LINE_CLOSE (TSPI)

This message is sent to the LINEEVENTcallback function by the service provider to request that TAPI close the specified line device. Once closed, the line device handle or any call handles for calls on the line are no longer valid.

LINE_CREATE (TSPI)

This message is sent to the LINEEVENTcallback function when it desires to create a new device.

LINE_DEVSPECIFIC (TSPI)

This message is sent to the LINEEVENTcallback function to notify TAPI about device-specific events occurring on a line or address.

LINE_GENERATE (TSPI)

This message is sent to the LINEEVENTcallback function to notify TAPI that the current digit or tone generation has terminated.

LINE_LINEDEVSTATE (TSPI)

This message is sent to the LINEEVENTcallback function when the state of a line device has changed.

LINE_MONITORDIGITS (TSPI)

This message is sent to the LINEEVENTcallback function whenever a digit is detected while digit monitoring is in progress.

LINE_MONITORMEDIA (TSPI)

This message is sent to the LINEEVENTcallback function whenever a change in the call's media type is detected and media type monitoring is enabled.

LINE_NEWCALL

This message is sent to the LINEEVENTcallback function whenever a new call that TAPI has not originated arrives on a line that TAPI has open. This must be the first message sent regarding that call.

LINE_REMOVE (TSPI)

This message notifies TAPI that an existing line device has been or is about to be removed from the system.

PHONE_BUTTON (TSPI)

This message is sent to the PHONEEVENTcallback function to notify TAPI that it has detected a button press on a phone device that TAPI has open and for which button press monitoring is enabled.

PHONE_CLOSE (TSPI)

This message is sent to the PHONEEVENTcallback function when an open phone device has been forcibly closed.

PHONE_CREATE (TSPI)

This message is sent to the PHONEEVENTcallback function to create a new device.

PHONE_DEVSPECIFIC (TSPI)

This message is sent to the PHONEEVENTcallback function to notify TAPI about device-specific events occurring at the phone.

PHONE_REMOVE (TSPI)

This message notifies TAPI that a phone device has been or is about to be removed from the system.

PHONE_STATE (TSPI)

This message is sent to the PHONEEVENTcallback function to TAPI whenever a phone device's status changes.