Real-Time Text (RTT) is the next generation synchronous communication technology that replaces aging TTYs. You may already notice RTT is available on your smartphones today, but we take RTT to the next level making it truly accessible and comfortable for users everywhere.
There are two types of RTT: Native RTT and Over the Top (OTT) RTT. Native RTT is available on all smartphones sold in the United States, and OTT RTT is available in apps that you can download from AppStore, for instance apps provided by Video Relay Services such as Global VRS, Z/P Together, and Sorenson.
This video shows how Native RTT is activated and then used on a smartphone.
It is thanks to RTT technology that we at nWise are able to deliver a customizable phone that breaks away from the limitations of hardware and into the flexibility of portable software solutions .
You can see in the video below how you activate Native RTT on your mobile phone. It is found in the Accessibility menu, and when activated it can be selected to be used in a call.