| Platform SDK: TAPI |
The country code is relevant only when telephone numbers are being used. It identifies an area of the world.
All service providers that support use of telephone numbers must support use of this information.
TAPI 2: lineGetCallInfo (dwCountryCode member of lpCallInfo)
TAPI 3: ITCallInfo::get_CallInfoLong (CIL_COUNTRYCODE member of CALLINFO_LONG)