How to create a business channel on Telegram? (Tutorial) 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 iOS app: In the “Chats” tab, click the new message icon in the right upper corner. Select “New Channel.” Telegram offers a powerful toolset that allows businesses to create and manage channels, groups, and bots to broadcast messages, engage in conversations, and offer reliable customer support via bots.
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