Telegram Channels requirements & features End-to-end encryption is an important feature in messaging, as it's the first step in protecting users from surveillance. Channel login must contain 5-32 characters Hashtags In 2018, Telegram’s audience reached 200 million people, with 500,000 new users joining the messenger every day. It was launched for iOS on 14 August 2013 and Android on 20 October 2013.
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