How to create a business channel on Telegram? (Tutorial) 5Telegram Channel avatar size/dimensions Channel login must contain 5-32 characters To edit your name or bio, click the Menu icon and select “Manage Channel.” In 2018, Telegram’s 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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