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Orbita provides multilanguage support allowing you to change the labels in the chatbot.
Refer How to configure text-to-speech for a multi-lingual bot to change the voice output of the chatbot.
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You have to Add and/or Arrange the languages in your browser settings for the above settings language support to take effect in your browser. The language you are trying to add should be at the top of the language list of the browser.
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