Fact · Accessibility and health
In the most widely used form of IP CTS, a call is connected to a communications assistant, who repeats what the other party says, and voice recognition software turns the assistant's voice into text on the deaf or hard of hearing user's phone.
Checked against its source on October 16, 2026
In the source's own words
“The CA hears and repeats everything the other party says, and voice recognition software transcribes those words”
Suggested Best Practices for Audiologists' Determination of Need for Captioned Phone Services, American Speech-Language-Hearing Association, American Speech-Language-Hearing Association (ASHA), n.d., Description of IP CTS.
Open the original- What it measures
- The description covers the operation of IP CTS, the internet-based captioned telephone service that uses an existing voice phone and a computer, or another internet connected device.
- What it does not show
- The same page notes that one provider is app-based only and uses CART writers instead. Captions are therefore not always produced by the same method.