Modern instant messaging has evolved far beyond simple text chats. Today's platforms like WhatsApp, Telegram, Discord,
and Signal offer comprehensive communication solutions.
These services allow you to send and receive messages in real time to and from other users all over the world who are
connected to the Internet at the same time. In addition, instant messaging services now include file transfers, voice
messages, audio and video calls, screen sharing, and group conversations with hundreds of participants.
Once you've installed an app such as WhatsApp, Telegram, Discord, or Signal on your smartphone or computer, you have to
register a user name and a password (or phone number) in order to access the service.
The next step consists of adding contacts from your phone's contact list or by username. A messaging session can begin as
soon as you have added your contacts.