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Application-specific Information

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Application-specific information allows applications to pass each other information concerning a session through TAPI. This information is not interpreted by TAPI and usage is entirely defined by the applications.

When application-specific information is changed by one application, TAPI sends all other applications with monitor or owner privileges on the session an event indicating that a change has occurred.

Not all service providers support use of this information.

TAPI 2.x: See lineGetCallInfo (dwAppSpecific member of lpCallInfo), lineSetAppSpecific, LINE_CALLINFO message (dwParam1 set to LINECALLINFOSTATE_APPSPECIFIC).

TAPI 3.x: See ITCallInfo::get_CallInfoLong, ITCallInfo::put_CallInfoLong (CIL_APPSPECIFIC member of CALLINFO_LONG).