The assistant will repeat what the caller with the speech disability is saying.
The callee then responds in this three-way assisted phone conversation.
The service is available in Australia, Sweden, and in other nations on a trial basis.
STS Relay first became available in the US in California, in 1997; the service became available nationally March 1, 2001.
On May 12, 2006, the University of Wisconsin - Madison awarded Robert Z. Segalman, PhD (UW 1972), an honorary Doctor of Science for his work in creating Speech To Speech.