How to turn on the switch of my mobile phone?

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check,
suppose that the user subscribes to my web site
I need to authorize him to turn on the switch (because my site has voice transfer function)
I find that the google chrome, safari installed on the ios does not have a way to turn on the switch. What way do I need to get the "enable key" button?
android is also the same as

Javascript chrome safari android ios

Mar.20,2021

navigator.mediaDevices.getUserMedia ({audio:true})
document

only web pages that need to be encrypted by tls have permission to execute

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