INT 2F - Communicating Applications SpecificationDCA and Intel's standard programmatic interface for sending and receiving FAXes via any of a number of internal FAX boards. - INSTALLATION CHECK AX = CB00h Return: AL = status 00h not installed, OK to install 01h not installed, not OK to install FFh installed Note: AH = CBh is the default identifier, but may be reconfigured SeeAlso: AH=2Ah,AX=8000h"FaxBIOS",AX=CB0Eh,AX=CBDCh