| Platform SDK: TAPI |
Device-specific buffers may be part of a service provider's implementation of extended operations. The service provider defines the meaning of these buffers.
Not all service providers support use of this information.
TAPI 2: lineGetCallInfo, dwDevSpecificSize and dwDevSpecificOffset members of LINECALLINFO
TAPI 3: ITCallInfo::GetCallInfoBuffer, called with CIB_DEVSPECIFICBUFFER member of CALLINFO_BUFFER