In TT, you'd write (I copied this out of the "manual"):

  	wait 'OK' 'ERROR'		Wait until 'OK' or 'ERROR' has
					received.
	if result=0 goto timeout	If time-out, go to ':timeout'.
	if result=1 goto ok		If 'OK' has received, go to ':ok'.
	if result=2 goto error

It's not _that_ different, I think.
The "support" is of course nil, though; but sources are available and as a bonus it contains also complete japanese support (including help) :-)

JW