2How to set up a Telegram channel? (A step-by-step tutorial) Each account can create up to 10 public channels 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 Private or Public Channel on Telegram? End-to-end encryption is an important feature in messaging, as it's the first step in protecting users from surveillance.
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