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  1. Functional Accessibility Requirements
  2. 6. ICT with two way voice communication
  3. 6.2: Real-Time Text (RTT) functionality
  4. 6.2.2. Display of Real-time Text
  5. 6.2.2.1. Visually distinguishable display

6.2.2.1. Visually distinguishable display

Where ICT has RTT send and receive capabilities, displayed sent text shall be visually differentiated from and separated from received text.

Testing methods

Type of compliance Inspection
Pre-conditions
  1. The ICT under test has RTT send and receive capabilities.
  2. The ICT supports RTT mechanism(s).
  3. A "reference" RTT-capable terminal using mechanisms supported by the ICT system is connected at the other end of the system to the ICT under test.
Procedure
  1. The ICT under test is connected to the ICT system terminated by the "reference" terminal.
  2. The different elements of the ICT are in an operational status (the connection is active and the terminals are in the relevant RTT mode) and the two terminals are communicating to each other.
  3. A Short text sequence is sent by the ICT under test.
  4. A Short text sequence is sent by the "reference" terminal.
  5. Check, on the ICT under test, that displayed sent text is visually differentiated from and separated from received text.
Result  Pass: Check 5 is true
 Fail: Check 5 is false

NOTE:   A "reference" terminal is a terminal having RTT send and receive capabilities that uses the RTT mechanisms supported by the ICT network. This "reference" terminal is the responsibility of the test laboratory.

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