The popular messaging app Telegram marks its seventh year of business today (August 14, 2020). It has ushered this anniversary in along with a new feature: video calling. It now exists in alpha form, boasting picture-in-picture and end-to-end encryption, but only for its Android app thus far.
https://www.notebookcheck.net/Telegram-celebrates-its-seventh-anniversary-with-the-announcement-of-video-calling-for-Android.486613.0.html