American Sign Language Interpreters
A sign language interpreter is a person trained in translating between a spoken and a signed language. This usually means someone who interprets what is being said and signs it for someone who can't hear, but understands sign. Of course, the interpreter also will interpret and speak the words which convey the meaning of whatever the signing person signs so hearing people can "hear" what is signed.
Video Remote Interpreting
Video remote interpreting (VRI) is a video communication service that uses devices such as web cameras to provide sign language or spoken language interpreting services. This is done through a remote or offsite interpreter, in order to communicate with persons with whom there is a communication barrier. It is similar to a slightly different technology called video relay service, where the parties are each located in different places.