*Independent, third-party professional certification is required.
Internet Protocol Captioned Telephone Service (IP CTS) is regulated and funded by the Federal Communications Commission (FCC) and is designed exclusively for individuals with hearing loss. In order to use IP CTS, you must have telephone service and high-speed Internet connectivity where the phone will be used.
The Hamilton CapTel 840i and 2400i require telephone service and high-speed Internet access. WiFi Capable.