RTT or Real Time Text is a stock feature of all Samsung android phones that allows users to send the text message immediately as you type without hitting send button. With real-time text, you may send and receive text messages during a phone conversation. This article explains all about RTT calling, What is RTT Calling, how to use it and how to enable or disable RTT calling on androhttps://fixyourandroid.com/about/rtt-calling-on-android/id.
 

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