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There are two options how to solve the issue from the notification inside the Voice for Browser:
Activate now - This helps with the problem temporarily because browser requires user interaction (just a click) with the phone before allowing it to play audio. However, this only helps as long as the current phone session stays open. You may also click anywhere on the phone instead of Activate now - this also removes the notifications. If the phone is reloaded, then the audio problem may appear again.
Change audio setting - An Advanced audio setting is available on Voice for Browser 2023.3.2 for a more permanent resolution of the issue. See below.
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