Android is a mobile operating system developed by Google. It is based on a modified version of the Linux kernel and other open source software, and is designed primarily for touchscreen mobile devices such as smartphones and tablets.
In May 2016, Android had 1.4 billion monthly active users, and it has been the best-selling OS on tablets since 2013. As of September 2016, Android devices account for more than 85% of global smartphone sales.
Android has been the best-selling OS worldwide on smartphones since 2011 and on tablets since 2013.
Android's user interface is mainly based on direct manipulation, using touch gestures that loosely correspond to real-world actions, such as swiping, tapping and pinching, to manipulate on-screen objects, along with a virtual keyboard for text input. In addition to touchscreen devices, Google has further developed Android TV for televisions, Android Auto for cars, and Android Wear for wrist watches, each with a specialized user interface.
Variants of Android are also used on game consoles, digital cameras, PCs and other electronics.
What is an RTT call on Android?
An RTT call is a type of phone call made on Android devices that allow users to communicate in real-time using text messages. This type of calling is beneficial for those who are hard of hearing or have difficulty speaking. RTT calls are also less expensive than traditional phone calls.
What is the difference between an RTT call and a regular call on Android?
When making a regular phone call on your Android device, your phone will use a technology called RTT (Regular Telephony) to connect to the network. This type of call uses your phone's data connection to make a call, so it will not use your minutes. RTT calls are made over the Internet, so they may sound different than regular phone calls. To make an RTT call, you will need to have a data connection (WiFi or mobile data) and be in an area with good coverage.
Frequently Asked Questions
What is an RTT call?
RTT stands for Real-time Text. A call feature that assists deaf and hard-of-hearing phone users, among others, with communication during voice calls.
What is rtt in Android 9?
Rtt is a new generic term for Text Telephone (TTY) technology that replaces Text Message Forwarding on Android 9. Rtt provides deaf or hard of hearing people with features to make voice and RTT calls using the same phone number, send text character-by-character while typing, enable 911 communications, and employ TTY backward compatibility.
What is real-time text (RTT)?
RTT is a technology that allows wireless phones using IP-based networks to send text messages immediately as they are produced, a process known as real-time text (RTT). If you’re using RTT, you don’t have to hit a “send” key as you would with SMS, chat, or other forms of messaging.
How do I use RTT on my phone?
To turn on RTT, go to your Phone app settings and toggle on "Record phone calls using Real-Time Text" under the Phone Conversation heading. You can place a call with RTT, or you can switch from voice to RTT during a call.
How do I switch from RTT to voice call on Android?
To switch from RTT to a voice call on Android, open the Phone app and tap More Switch to voice call.
