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Samsung Galaxy Z Fold4
Manage RTT Settings

2026-10-04 09:50:13.081

Samsung Galaxy Z Fold4
Manage RTT Settings

Use RTT to text in real time on calls from your Galaxy Z Fold4. This can help with hearing or speech issues or if you prefer typing.

Change RTT  Visibility

  1. Open the
    Settings app
    .
  2. Navigate:
    Accessibility
    Hearing enhancements
    Real Time Text
    .
  3. Tap
    RTT call button
    .
  4. Select the preferred setting:
    • Visible during calls
      : Show the RTT call button only during RTT calls.
    • Always visible
      : Show the RTT call button on the keypad and during all calls.

Make a Call with RTT

  1. With RTT enabled, open the
    Phone app
    .
  2. Do one of the following:
    • From the Keypad tab, enter a 10-digit number then tap the
      RTT call icon
      .
    • From the Contacts tab, select a contact then tap the
      RTT call icon
      .

Switch a Call to RTT

  1. While on a call, tap
    Real Time Text
    .

End an RTT Call

  1. While on a call, tap
    End
    .