Texting a follow-up survey - Twilio Tutorial

- A great practice whenever you're launching an application is to grab user feedback. I was thinking we could send an automated survey when the conference was over. I figured this would also be a good time to explore messaging services and check out all the awesome benefit that they provide. We should totally grab our user's feedback when they're done with the talk. Now a nice way to do this is to shoot off a text message to them using a status callback webhook on the conference. So let's do that. So you can actually set conference call settings when you create your participants. Now only the first one that actually causes a conference to get created will set the properties and afterwards it's ignored. So we can do that. Let's add it to our start talk code where we call the speaker. So, and this one here, we'll do it here. Add 'em at the bottom here. So we'll do ConferenceStatusCallback. And we are going to need…