### Question
How does the law define telephone exchange service?


### Answer
Under *47 U.S.C. § 153*, **telephone exchange service** is defined as:

> (A) service within a telephone exchange, or within a connected system of telephone exchanges within the same exchange area operated to furnish to subscribers intercommunicating service of the character ordinarily furnished by a single exchange, and which is covered by the exchange service charge, or (B) comparable service provided through a system of switches, transmission equipment, or other facilities (or combination thereof) by which a subscriber can originate and terminate a telecommunications service

#### Citation:
  - *47 U.S.C. § 153*
  - Heading: **CHAPTER 4-RADIO ACT OF 1927 > SUBCHAPTER I-GENERAL PROVISIONS**

