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انجمن علمی مهندسی اپتیک و لیزر دانشگاه کوثر Telegram News
To delete a channel with over 1,000 subscribers, you need to contact user support 5Telegram Channel avatar size/dimensions 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. The main design elements of your Telegram channel include a name, bio (brief description), and avatar. Your bio should be: Telegram iOS app: In the “Chats” tab, click the new message icon in the right upper corner. Select “New Channel.”
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