Platform SDK: TAPI

Reason

The possible reasons for an incoming session, such as that it was transferred, are listed in the LINECALLREASON_ Constants.

Not all service providers support use of this information.

TAPI 2: lineGetCallInfo (dwReason member of lpCallInfo)

TAPI 3: ITCallInfo::get_CallInfoLong (CIL_REASON member of CALLINFO_LONG)