The optimal dimension of the avatar on Telegram is 512px by 512px, and itโs recommended to use PNG format to deliver an unpixelated avatar. How to create a business channel on Telegram? (Tutorial) Telegram desktop app: In the upper left corner, click the Menu icon (the one with three lines). Select โNew Channelโ from the drop-down menu. A vandalised bank during the 2019 protest. File photo: May James/HKFP. In 2018, Telegramโs audience reached 200 million people, with 500,000 new users joining the messenger every day. It was launched for iOS on 14 August 2013 and Android on 20 October 2013.
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