Rasa Asterisk Intergration

Rasa Open Source
1

Hi, I have built a voice bot and further i want to implement IVR call centre, I have read that the next step is to integrate my voice bot with asterisk. Can anyone please help me with the integration or any other alternate solution

2

Hi Vin,

just to check, you’re referring to this asterisk service? Also, when you say you’ve built a voice bot. What exactly do you mean with that? What technology have you used for it?

3

yes i meant the same asterisk which you mentioned. I have built a customer support voice bot using Mozilla STT and TTS tools. I further want to use asterisk to achieve something like this.

4

I have never worked with asterisk so I can’t really help you there I’m afraid.

One last thing, you mentioned IVR call centre. What does the IVR abbreviation stand for?

5

Greeting all. I hope my answer will help you or someone.

Integration Asterisk with RASA:

  1. Use Asterisk Gateway Interface (AGI) or FastAGI (implementation the Asterisk Gateway Interface (AGI) over TCP sockets).
  2. AGI or FastAGI create record of voice.
  3. Send a record of voice to the utility of recognition a speech to text (in your case Mozilla STT).
  4. Received text from STT.
  5. Request and receive a response from RASA HTTP API
  6. Use the utility of text to speech (in your case Mozilla TTS) to create a voice from rasa response.
  7. Play audio file created by TTS

Use step 1-7 into a loop.

Start RASA HTTP API:

rasa run -p 8080 --enable-api

Example of request to RASA HTTP API:

curl -XPOST http://IP:PORT/webhooks/rest/webhook -d '{"sender":"ID","message":"TEXT"}'

IP - ip of rasa
PORT - port of rasa
ID - CALLERID(num)
TEXT - text from STT

IVR - Interactive voice response.

From Wikipedia the free encyclopedia:

Interactive voice response (IVR) is a technology that allows humans to interact with a computer-operated phone system through the use of voice and DTMF tones input via a keypad. In telecommunications, IVR allows customers to interact with a company’s host system via a telephone keypad or by speech recognition, after which services can be inquired about through the IVR dialogue. IVR systems can respond with pre-recorded or dynamically generated audio to further direct users on how to proceed.

Recommend to read:

  • RASA HTTP API documentation.
  • Question on this forum “How to connect RASA NLP to our web application”.
  • Asterisk documentation.
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