[Gigablah]

this would likely make the test administrators liable if any of the phones went missing.

[listenallyall]

And who's liable if I pay a testing center to properly administer an important test that will heavily impact my future, and during such test a phone rings, another phone's alarm goes off, and another phone gets a series of audio notifications? - when the center could have simply taken all the phones to a another location until the conclusion of the test.