Twilio Client "mute" Button Not Working

I am having a problem 'Muting' an outgoing call through Twilio Client. I am able to mute calls when I receive an incoming call, however, when I make an outgoing call, the mute butt

Solution 1:

Shouldn't you be setting conn = Twilio.Device.connect(params);?

https://www.twilio.com/docs/api/client/device#connect