A method of operating a captioned telephone call in which an assisted user is connected by a captioned telephone device which is connected both to one telephone line to a remote user and a second telephone line to a relay providing captioning for a conversation, the method comprising the steps of during a telephone conversation, the captioned telephone device receiving captioning for spoken words of the remote user from the relay and displaying the words in a visual display for the assisted user; and during the telephone conversation, the captioned telephone device using echo cancellation to cancel the voice of the assisted user from the second telephone line so that the relay does not hear the voice of the assisted user, so the relay can caption all the words on the second telephone line without causing confusion to the assisted user. view more

A method as claimed in claim 11 wherein the telephone line is a telephonic connection selected from the group consisting of a twisted pair telephone land line, a cellular telephone link, a POS link, and an internet protocol (IP) socket connection.

A method as claimed in claim 11 wherein the captioned telephone device and a telephone of the assisted unit are built into a single device.