Currently I'm using this plugin as a template for warm transferring a call to an external number, but would really prefer to be able to cold transfer. I tried invoking the wrapupTask action after adding the participant to the call, but the call would end for everyone.
Another thing I noticed was when warm transferring to the external number, the caller Id is my Twilio number - is there a way where the caller Id can be the number of the person that called in?