### Question
How is the term essential telephones defined?


### Answer
The term **essential telephones** is defined in *47 U.S.C. § 610* as the following:

> only coin-operated telephones, telephones provided for emergency use, and other telephones frequently needed for use by persons using such hearing aids

#### Citation:
  - *47 U.S.C. § 610*
  - Heading: **CHAPTER 4-RADIO ACT OF 1927 > SUBCHAPTER VI-MISCELLANEOUS PROVISIONS**

