If the handsets are going to be used on campus, one thing to keep in mind is that current Android and the follow-on tablets will almost all support encrypted WIFI, which would reduce the amount of network data you would consume while at the clinic.
I have an app on my X that tracks usage day/week/month, just so that I know what I am consuming for spec'ing customer use cases.
To be clear, I'm not suggesting you sign up for any vendor, rather if you are already a BigRed customer, just a friendly heads-up.
