Telegram is a messaging app. Its founders are: Nikolai Durov, Pavel Durov are two Russian brothers. It was established in March, 2013. Telegram app users can send any type of document including images, stickers, videos, audios, messages through Telegram. It is also easy to use, just like WhatsApp. However, authorities consider it more "effective" and "secure" than WhatsApp in terms of usage.
Benefits:
1) Easy to download large size files
2) Easy, convenient to share large documents, videos (up to 1.5 GB).
3) Secure messaging
4) Messages can be deleted within 48 hours of sending and messages can be modified and deleted on both sides.
5) The associated number can be changed anytime and the user's contacts will get the new number automatically.
6) Users can give pseudonyms if they want, so that they can talk without revealing their number.
7) Telegram accounts can be deleted at any time and accounts are automatically closed after six months of inactivity.
8) It is private. Telegram messages are heavily encrypted
9) Data exchange is faster.
10) Secure
11) It is free
12) Secret chat facility
Disadvantages:
1) Finding the downloaded file is a bit difficult.
How the Telegram app can be used in education:
1) Students can choose this application as a medium to submit assignments to the teacher.
2) Classmates can share information, videos, documents, pictures related to the topic by creating study groups or creating channels.
Edit 1: Telegram currently offers one-on-one voice calls/video calls.