The options are almost limitless, and it makes sense to offer a wide range. Communication is often the last thing they think about. But it's really key to the operation of the completed project. It has to be on the front burner on the priority list and it never, never is. It's the last consideration and they slam-dunk those things in.
Telecommunications falls into that.
They need to put it up front, because of the revenue potential it offers. People consider the phone charges to be just another part the price of doing business.