Communication system for healthcare industry

Healthcare as an industry lacks good communication system. The way healthcare is practiced is that most of the workers in the hospital are mobile. Very few have desktop phone number or a desktop where they can get email. They are moving about the hospital and they have critical business reasons to reach one another many times each day. They have been looking for an appropriate communications system for decades. They have not really found it. Phones are adequate but they are not really flexible. They are bulky and they are not handsfree. Two way radios are noisy. They are also bulky and they are also not handsfree. Seems like healthcare industry has a clear problem with not many good solutions.