INT 6F - 10-NET - SUBMIT
        AH = 09h
        DS:BX -> submit record (see below)

Format of submit record:
Offset  Size    Description
 00h 12 BYTEs   destination node ID (must be logged in)
 0Ch    WORD    length+2 of following 'command line' text
 0Eh  N BYTEs   command line text (<=100 bytes), system adds CR