### Question
What is the definition of multi-line telephone system?


### Answer
The definition of **multi-line telephone system** is as follows in *47 U.S.C. § 623*:

> given such term in section 1471 of this title.

#### Citation:
  - *47 U.S.C. § 623*
  - Heading: **CHAPTER 5-WIRE OR RADIO COMMUNICATION > SUBCHAPTER VI-MISCELLANEOUS PROVISIONS**

