A new window will come up. Enter your channel name and bio. (See the character limits above.) Click “Create.” How to create a business channel on Telegram? (Tutorial) The Channel name and bio must be no more than 255 characters long 5Telegram Channel avatar size/dimensions 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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