A vandalised bank during the 2019 protest. File photo: May James/HKFP. How to build a private or public channel on Telegram? Invite up to 200 users from your contacts to join your channel Developing social channels based on exchanging a single message isn’t exactly new, of course. Back in 2014, the “Yo” app was launched with the sole purpose of enabling users to send each other the greeting “Yo.” 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.
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