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Add vocal capabilities to existing PVA bot (Direct Line Speech)

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Posted on by uffing

We want to give vocal capabilities to one of our PVA bots.
"Direct Line Speech" channel on PVA panel gives an endpoint url in this form:

https://default...environment.api.powerplatform.com/powervirtualagents/bots/..../directline/token?api-version=2022-03-01-preview

but it's not clear how to connect to it.
The link provided as an help to configure the channel points to: https://go.microsoft.com/fwlink/?linkid=2208311

which returns a 404 error.

Can someone help?

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Publish & channel management

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Jameslew_MSFT on at

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The DirectLine Speech channel isn't actually native to PVA, it's implemented via the Azure Bot Service. You would end up building a Bot Framework bot, and then connecting your PVA bot to it. The below was lifted from a post by Henry Jammes (modified for DL Speech).

While not easy, I don't think it's impossible if you have Azure Bot Service and developer expertise.
Useful resources:
Add your PVA bot to Azure Bot Service channels: Add a chatbot to Azure Bot Service channels - Power Virtual Agents | Microsoft Learn
Connect your Azure Bot Service registration to the Direct Line Speech channel Connect a bot to Direct Line Speech - Bot Service | Microsoft Learn

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Gujano 4 on at

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Is there anyone has done this with actual "working" sample? I find the documentation (in the links) almost impossible to follow, and the sample code for the "RelayBotSample" from the github is actually nothing there... is it only me who find almost all the documentation on how to connect PVA to a Bot Service Channels not helpful at all?

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Jameslew_MSFT on at

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Due to the nature of it being non-native, this is going to require some code-level investment. An additional page that might be useful: Use a Power Virtual Agents bot as a skill in Bot Framework bots - Power Virtual Agents | Microsoft Learn.

Some other customers have engaged AudioCodes who have a pattern for extending PVA for telephony (largely using the same mechanism, but they've done a bunch of the work). It's a standalone offering from outside Microsoft but can be integrated with PVA.

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Farhaan 5 on at

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The solution helped me, thankyou.

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