Int F1 Fn 01  - Common Isdn Api (capi) V1.1 - "api-register" - Initialize  [-]

   AH = 01h
   ES:BX -> buffer for CAPI's use (refer to note below)
   CX = minimum number of pending messages
   DX = maximum simultaneous Level 3 connections
   SI = maximum concurrent received B3 data blocks
   DI = maximum B3 data block size

Return: AX = CAPI-assigned application ID
       0000h on error
       BX = error number
           1001h registration error
Range: INT 00 to INT FF, selectable by program parameter

Notes: the caller is required to provide at least 512 bytes of stack space
   the CAPI interrupt handler begins with a header which is nearly
     identical to the IBM Interrupt Sharing Protocol header
     (see #2256 at INT 2D"AMIS"), except that the short jump instruction
     to a hardware reset handler at offset 09h is replaced by the
     signature bytes "IA"
   the maximum length of a message is fixed at 180 bytes; the standard
     document suggests using CX=10, DI=1, SI=7, and DI=130 for
     applications which use only a single connection and standard
     protocols
   the total size of the application-provided buffer must be at least
     180*CX + DX*SI*DI bytes

See Also: AH=02h,INT F1/AL=01h
Index: installation check;Common ISDN API