Under the ATSOCA crap thats exactly what the pilot can do. The controller can then drop them to a basic service if they so wish.
But as such they can't clear you for anything. Its a procedural service for participating traffic.
Which is a common miss conception to alot of CAT pilots they have zero protection just because they are talking to a procedural service or for that matter while flying a procedure in class G. Anything can be flying through the procedure airspace and hold with out talking to the service.
Personally I think CAT pilots should have procedural class G airspace rating. The knowledge level of most is utterly appalling as shown by flyme