INT F1 - Common ISDN API (CAPI) v1.1 - "API-SET-SIGNAL" - SIGNAL HANDLING AH = 05h DX = application ID (see AH=01h) ES:BX -> signal handler or 0000h:0000h to disable Return: AX = status (0000h,1002h) (see #04069) Notes: the caller is required to provide at least 512 bytes of stack space the signal handler is called as though it were an interrupt, with interrupts disabled; the handler must preserve all registers and return with an IRET SeeAlso: AH=01h