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Instant messaging (IM), Messenger, Slack, Mattermost, RocketChat, Gitter, Discord, Microsoft Teams, Skype, Amazon Chime, Zoom, Google Chat, AWS Chatbot, LiveChat, APNs, Arattai, Zulip, Chanty, Fleep, Spaces, Zoho Connect, QQ, WhatsApp, Cliq, iMessage, Telegram
