How to Create a Private or Public Channel on Telegram? Members can post their voice notes of themselves screaming. Interestingly, the group doesn’t allow to post anything else which might lead to an instant ban. As of now, there are more than 330 members in the group. When choosing the right name for your Telegram channel, use the language of your target audience. The name must sum up the essence of your channel in 1-3 words. If you’re planning to expand your Telegram audience, it makes sense to incorporate keywords into your name. 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. 5Telegram Channel avatar size/dimensions
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