[MSDN Library June 1998] ITCallInfo::get_MediaTerminalsInUse (83.6801242236025%)
MSDN Library Visual Studio 6.0 > Platform SDK > Networking and Distributed Services > Telephony Application Programming Interface (TAPI) > TAPI Version 3.0 > Call and Media Controls > Call and Media Control Reference > Call and Media Control COM Interfaces > ITCallInfo