试图弄清楚twilio中的呼叫是如何工作的

Question

As subject says I am reading api docs for twilio but even after brainstorming for 2 hours I am still unable to figure out exactly how can I receive a call from twilio on my web application and answer the call with my own voice like we do in a real phone.

I know how to respond a call when someone call your twilio number but that's only text to speech conversion like their "Hello Monkey" example application but nothing so far about answering a call using their API.

Can anyone please explain how can we do that? Not everything, just main concept and few references if possible

I am using Laravel so would be good if it's in php

Answer 1

Twilio evangelist here.

I would suggest working through the Twilio Client for JavaScript Quickstart. This will walk you through both the server and client side code needed to build a phone in your browser, showing you how to both make outbound calls from the browser to a PSTN phone as well as receive incoming PSTN calls in the browser.

The magic that you are looking for in either of those cases is the <Dial> verb. When an incoming PSTN call comes into Twilio, you can use the Dial verb to tell Twilio to dial and bridge that call with a Client instance:

<Dial>
    <Client>jenny</Client>
</Dial>

When and instance of client make an outbound call and wants to connect to a PSTN phone number you again us the Dial verb:

<Dial>
    <Number>[phone]</Number>
</Dial>

The quickstart shows in more detail how this works.

Hope that helps.