Voip integration

[synesthesiam]

Breaking change

Proposed change

Add voice over IP (VoIP) integration for use with phones connected to a Grandstream (HT801/HT802).
Runs pipeline for configured language in a loop, taking in STT commands and responding with TTS.

Type of change

• Dependency upgrade
• Bugfix (non-breaking change which fixes an issue)
• New integration (thank you!)
• New feature (which adds functionality to an existing integration)
• Deprecation (breaking change to happen in the future)
• Breaking change (fix/feature causing existing functionality to break)
• Code quality improvements to existing code or addition of tests

Additional information

• This PR fixes or closes issue: fixes #
• This PR is related to issue:
• Link to documentation pull request:

Checklist

• The code change is tested and works locally.
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• Tests have been added to verify that the new code works.

If user exposed functionality or configuration variables are added/changed:

• Documentation added/updated for www.home-assistant.io

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  Updated and included derived files by running: python3 -m script.hassfest.
• New or updated dependencies have been added to requirements_all.txt.
  Updated by running python3 -m script.gen_requirements_all.
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[home-assistant]

Hey there @home-assistant/cloud, mind taking a look at this pull request as it has been labeled with an integration (cloud) you are listed as a code owner for? Thanks!

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[home-assistant]

Hey there @balloob, mind taking a look at this pull request as it has been labeled with an integration (voice_assistant) you are listed as a code owner for? Thanks!

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[MartinHjelmare]

This is only needed if another integration will import names from this integration. I don't think that's the case here. We can remove it.

[MartinHjelmare]

This looks like something that should be done in a 3rd party library.

https://developers.home-assistant.io/docs/creating_component_code_review#4-communication-with-devicesservices

Abstract the asyncio datagram protocol interface so the library user doesn't need to know about that detail.