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. Telegram channels enable users to broadcast messages to multiple users simultaneously. Like on social media, users need to subscribe to your channel to get access to your content published by one or more administrators. How to create a business channel on Telegram? (Tutorial) 4How to customize a Telegram channel? Each account can create up to 10 public channels
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