I am almost certain that it's just another alias for kung fu. Perhaps a kung fun instructor is teaching a less traditional form of the art and decided to market it as Chinese boxing. Regardless, it still has nothing on Muay Thai or regular boxing.
ummm, it is a traditional style (i.e. similar to wushu/kung fu), but i dont know too much about it
there are some variants of it (i think called natural boxing ut dont quote me on it) whih are dim-mak style death strikes (i saw somethng on here abou it before, it doesnt look v.practical)
there are other variants of it which are more hard style and combat based. i know they train hard as my club got bruise medicine from them so its definately not all soft style....go along and take a look