AT&T Co chairman Robert Allen is just back from a trip to China, and he is full of what he just saw: he says that the country offers tremendous opportunities in telecommunications for AT&T and other companies – It is an unbelievable opportunity for someone and it is certainly an opportunity for AT&T; we can deliver on their total needs better than anyone else in the world, Allen said, adding AT&T was well received by Chinese officials during his trip last week.