Videophone
https://en.wikipedia.org/wiki/Videophone
A <strong>videophone</strong> is (broadest definition) any smart phone that can send/receive/view videos; in particular, a <strong>videophone</strong> refers to the mobile device utilized by people who are deaf/speech-impaired, allowing them to communicate using sign language. <strong>Videophone</strong> are also popular in telemedicine, users with mobility issues, and in educational instruction.

Sign Language Communications via Videophones
https://en.wikipedia.org/wiki/Videophone#Sign_language_communications_via_videophones

Video Relay Services (VRS) - service offered by telecommunications companies where a sign language interpreter uses a conventional telephone, while at the same time communicating with the deaf person's party.
Video Remote Interpreting (VRI) - service where video equipment is used to do on-site language translation. Sign language interpreters work remotely with live video/audio feeds, allowing them to see deaf/mute part, and converse with the hearing party, and vice versa. Video interpreting can be used for situations in which no on-site interpreters are available, <em>however</em> video interpreting cannot be used for situations in which all parties are speaking via telephone alone.
VRS and VRI interpretation requires all participants to have the necessary equipment (hardware)
The U.S. (and other countries) compensate companies providing VRS.

Video Interpreter


<figure>
  <img src="https://upload.wikimedia.org/wikipedia/commons/thumb/a/a4/Video_interpreter.svg/407px-Video_interpreter.svg.png" alt="Video Interpreter" />
  <figcaption>
    <p>A <strong>Video Interpreter</strong> sign used at <strong>videophone</strong> stations in public places indicating <strong>Video Relay Service</strong>/<strong>Video Remote Interpreting</strong> communication is available.
      <cite><a href="https://en.wikipedia.org/wiki/File:Video_interpreter.svg">File:Video interpreter.svg, https://en.wikipedia.org/wiki/File:Video_interpreter.svg</a></cite></p>
  </figcaption>
</figure>

Video Remote Interpreting
https://en.wikipedia.org/wiki/Video_remote_interpreting
VRI is a videotelecommunication service that uses devices (web cams/<strong>videophone</strong>s) to provide sign language/spoken language interpreting services through a remote/offsite interpreter, whom communicates with persons with whom there is a communication barrier.</p>
<p><strong><abbr>vri</abbr></strong> is similiar to <strong><abbr>vrs</abbr></strong>, where the parties are each located in different places.</p>
<p><strong><abbr>vri</abbr></strong> is a type of <strong>telecommunications relay service</strong> (<abbr>trs</abbr>) and is not regulated by the FCC.</p>