15.4 For each real-time text communication functionality, can the messages be identified (excluding special cases)?

Test 1 (15.4)

iOS and Android

1. Activate the application and the application's RTT functionality on two terminals and connect them to the same session.
2. Send a text message from both terminals to obtain messages with different statuses (sent and received) and with different authors.
3. Check that
   • sent and received messages are visually separated (for example, sent messages are in one window and received messages in another, or there is a line break between each received and sent message if they are presented in the same window);
   • it is visually possible to distinguish between messages sent and messages received. For example, by a layout or colour that differentiates them or by a visible text annotation (look for the words "Sent" near a sent message or "Received" near a received message);
   • information about the nature of the message (received or sent) is accessible to assistive technologies (text information is available to provide this information);
   • the authors of text messages are identified (for example, the presence of a name or identifier preceding the message).
4. If this is the case, the criterion is validated.