问题
MS recently introduced direct speech channel and some samples for web frontend to use it. But i was wondering is it a good fit for use in call center scenario using some SIP or services like twilio phone? If so i would like to see some docs how to use direct line speech api and wire it up to some telephony? I've already created github issue but it stay wo attention https://github.com/MicrosoftDocs/bot-docs/issues/1162
PS: also i have related problem, i can't find any docs on how to exachange secret to direct line token. Link for original direct line is not working for speech direct line. Thanks
回答1:
Andrey! Thanks for your interest. I'm Travis, and I work with the engineering teams building Direct Line Speech.
You're correct that the concepts behind Direct Line Speech are a great fit for call center scenarios. There's a huge potential value to application there. At this stage, in preview, we don't currently have built-in support for SIP/RTP to seamlessly integrate telephony I/O, but this is a need that we've heard loud and clear and we're actively investigating solutions as we move forward.
The good news, though, is that you're not blocked on getting started--you can make this work today, just with a little more legwork. Conceptually, you can use an existing telephony endpoint solution (like what Ram's pointing to) as a "middle tier" between your telephony clients and your Direct Line Speech bot. This middle tier service, which could itself actually be a simple bot, would be responsible for handling the RTP/SIP and then forwarding audio between the end user and the "real" bot, using the Speech SDK there to connect with Direct Line Speech. This is a little clunky, to be sure, but so long as the services are co-located within regions, it should still be able to produce a high-quality, low-latency experience the same way you'd get out of a native client.
Thanks again, and please keep sharing your thoughts and questions on the products; we're using your feedback to actively guide where we focus and what we create.
回答2:
Please find the docs section that has Tutorials and so-on. we have the Direct Line Speech channel with which a few lines of code to the above assistant enables you to stream audio to one endpoint and benefit from STT/Bot/TTS all in one call – audio is streamed back.
The steps to add Speech are here. For CallCenter scenarios to integrate with the telephony system (PBX) of the customer, Speech Bot / VIL could take calls (SIP and RTP) from their PBX. Please find the docs for Voice first virtual assistants.
来源：https://stackoverflow.com/questions/56340032/is-new-ms-botbuilder-directline-speech-good-fit-for-call-center-scenario