How to Create a Private or Public Channel on Telegram? To upload a logo, click the Menu icon and select “Manage Channel.” In a new window, hit the Camera icon. Each account can create up to 10 public channels "Doxxing content is forbidden on Telegram and our moderators routinely remove such content from around the world," said a spokesman for the messaging app, Remi Vaughn. 5Telegram Channel avatar size/dimensions
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