I ALSO HAVE SAME PROBLEM BUT WHAT I AM GETTING IS
SET ONE AS CORDINATOR API MODE
OTHER AS ROUTER AT MODE
SET THEIR ADRESSES CROS IN DH AND DL.
MAKE FRAME 17(REMOTE AT MODE) SET ADDRESS OF REMOTE RADIO AND AT COMMAND LIKE D0,D1,D2 FOR DIFFERENT PIN.
PARAMETER VALUE 01,02,03,04,05 AS YOUR REQUIERMENT.
YOU WILL RECIEVE PACKET BUT CAN`T CHANGE STATE.