Makes it possible to select department channels on intercoms.

code/_helpers/unsorted.dm

@@ -245,8 +245,8 @@ Turf and target are seperate in case you want to teleport some distance from a t
 //Ensure the frequency is within bounds of what it should be sending/recieving at
 /proc/sanitize_frequency(var/f, var/low = PUBLIC_LOW_FREQ, var/high = PUBLIC_HIGH_FREQ)
 	f = round(f)
-	f = max(high, f)
-	f = min(low, f)
+	f = max(low, f)
+	f = min(high, f)
 	if ((f % 2) == 0) //Ensure the last digit is an odd number
 		f += 1
 	return f
@@ -569,7 +569,7 @@ proc/GaussRandRound(var/sigma,var/roundto)
 	var/turf/current = get_turf(source)
 	var/turf/target_turf = get_turf(target)
 	var/steps = 0
-	
+
 	if(!current || !target_turf)
 		return 0