INT F1 - Common ISDN API(Application Program[ming] Interface) The defined set of calls which a program may make to interact with or request services of the operating system or environment under which it is running.  Because the inputs and outputs of the calls are well-defined, a program using the API can continue using the identical calls even if the internal organization of the program providing the API changes. (CAPI) v2.0 - "CAPI_GET_VERSION"
	AL = F1h
	AH = CAPI version number * 10 (14h for v2.0)
Return: AH = CAPI major version number
	AL = CAPI minor version number
	DH = vendor-specific major version
	DL = vendor-specific minor version
Notes:	the caller is required to provide at least 512 bytes of stack space
SeeAlso: AH=F1h,INT F1/AL=01h,INT F1/AL=F0h,INT F1/AL=F2h,INT F1/AL=FFh