STS relay is the speech-to-speech relay service available to any telephone callers or callees with speech disability and to those who wish to talk with them.
STS relay is the speech-to-speech relay service available to any telephone callers or callees with speech disability and to those who wish to talk with them. (en)
STS relay is the speech-to-speech relay service available to any telephone callers or callees with speech disability and to those who wish to talk with them. (en)