### Question
How is the term teletypewriter exchange service defined?


### Answer
The term **teletypewriter exchange service** is defined in *26 U.S.C. § 4252* as the following:

> the access from a teletypewriter or other data station to the teletypewriter exchange system of which such station is a part, and the privilege of intercommunication by such station with substantially all persons having teletypewriter or other data stations constituting a part of the same teletypewriter exchange system, to which the subscriber is entitled upon payment of a charge or charges (whether such charge or charges are determined as a flat periodic amount, on the basis of distance and elapsed transmission time, or in some other manner)

#### Citation:
  - *26 U.S.C. § 4252*
  - Heading: **Subtitle D-Miscellaneous Excise Taxes > CHAPTER 33-FACILITIES AND SERVICES > Subchapter B-Communications**

