twilio conference - get dialedin participants phone input
问题 All the participants to my twilio conference are muted except the presenter. I need to implement a feature where the dialed in participant wants to ask a question by dialing a key on his phone. Essentially a 'raise hand' feature. He can then be unmuted by the moderator and allowed to ask his question. I already have a build in dashboard to mute/unmute the participants. is there a way that the caller can hit *1 or some combination of keys that I can then use in my callback. I've tried using *