INT F1 - Common ISDN API (CAPI) v2.0 - "CAPI_GET_SERIAL_NUMBER" AL = F2h AH = CAPI version number * 10 (14h for v2.0) ES:BX -> 64-byte buffer for CAPI serial number Return: ES:BX buffer filled with ASCIZ serial number (seven digits), empty string if no serial number Notes: the caller is required to provide at least 512 bytes of stack space SeeAlso: AH=F2h,INT F1/AL=01h,INT F1/AL=F0h,INT F1/AL=F1h,INT F1/AL=F3h