call box

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A roadside telephone used for reporting traffic accidents, breakdowns, and other emergencies.
• noun Chiefly British A public telephone booth.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun A telephone on the interstate to make phone calls in case of emergency.
• noun A telephone box.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun booth for using a telephone
• noun a numbered compartment in a post office where mail is put to be called for