You can turn the CAPTION feature on or off at any point during your telephone conversations. Simply press the CAPTION button to turn the feature ON or OFF while on a call. When the captions button is lit, you will receive captions. When the Caption button is off, the call will not be captioned. (The default setting is “ON”.) There will be an initial delay before captions begin as the Captioning Service is connected to the call. Note: 2-line CapTel must be enabled to use this feature.