The optimal dimension of the avatar on Telegram is 512px by 512px, and it’s recommended to use PNG format to deliver an unpixelated avatar. How to create a business channel on Telegram? (Tutorial) Telegram channels fall into two types: Telegram iOS app: In the “Chats” tab, click the new message icon in the right upper corner. Select “New Channel.” Users are more open to new information on workdays rather than weekends.
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