Int 7F Fn 0C  - G8bpq V4.00+ - Host Mode - Update Switch Information       [N]

   AH = 0Ch
   DX = function
       0001h update beacon text
       CX = length of data
       ES:SI -> data to be sent in beacons
       0002h (v4.07+) initiate NODES broadcast

See Also: AH=09h"G8BPQ"