INT 2F - ZyXEL ZFAX v3+ - SEND DATA - DIAL NUMBER AND UPLOAD FILE WITH ZMODEM   
	AX = DB41h
	DS:SI -> source file name, including path (max 128 characters)
	DS:BX -> remote data number
Return: AX = status (see #03096)
SeeAlso: AX=DB00h,AX=DB28h