best-secure-messaging-apps-shutterstock-1892950018.jpg The optimal dimension of the avatar on Telegram is 512px by 512px, and itβs recommended to use PNG format to deliver an unpixelated avatar. 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. Telegram desktop app: In the upper left corner, click the Menu icon (the one with three lines). Select βNew Channelβ from the drop-down menu. Telegram Channels requirements & features
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