I have wrote a simple script, that can be used to create tickets from a voicemail audio file, with speech recognition using Microsofts speech to text api.
If anyone is interested, you can have a look at:
Please use this at your own risk. Zammad tokens and Microsoft Azure api tokens are stored on your Asterisk instance. Using the Zammad api may lead to issues, if you don’t setup the s ript correctly. Use this in a test setup, before use it in production.