Android Question Voice Recognition 'Didn't catch that.' Dialog

zed said:

You are touching on a structural limitation of Android, and that is why all the examples in the B4A forum behave the same way: standard speech recognition (SpeechRecognizer) cannot be restarted automatically after a failure or a “No speech detected”, because Google requires user interaction to restart listening.
It's a continuous anti-eavesdropping protection imposed by Google.

You could restart automatically with a timer.
Even if Android blocks an immediate restart, you can restart it after a short delay (300–800 ms).

The most robust method would be to use a service with continuous listening.
Automatically restart the onError event and maintain background listening.
This is the technique used by voice assistants (Jarvis, etc.).

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zed said:

You're touching on a very interesting topic… but also a very regulated one.
Amateur radio operators are not allowed to directly call emergency services like 911 or any other official number.
International regulations (ITU) stipulate that amateur radio frequencies cannot be used for public traffic.
Emergency calls via amateur radio must be made on amateur radio emergency frequencies, not on telephone networks.
An amateur radio operator can request help by radio, but cannot trigger an automatic 911 call.
So: technically feasible, but legally prohibited.

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