JPM Corporate Client Banking vs JPM Corporate Banking

Can someone explain to me the difference between the two groups aside for the size of clients?

From what I understand Corporate Client Banking (CCB) handles clients with $500m - $2b in revenues while Corporate Banking (CB) handles clients with revenues >$2b.

Other than that, is there any difference between responsibilites? The job description makes it seem like you perform traditional CB services but also help out in deals/IB activities in CCB. Whereas in CB you focus only on CB activities.