It’s easy to create a Telegram channel via desktop app or mobile app (for Android and iOS): To delete a channel with over 1,000 subscribers, you need to contact user support Unlimited number of subscribers per channel End-to-end encryption is an important feature in messaging, as it's the first step in protecting users from surveillance. 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.
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