title: Detecting if an answering service picks up
body: <p>In our Twilio application a number is dialed, the call is recorded, and it's url is emailed to an administrator. An issue occurs when nobody is there to answer the call and the clients call answering service picks up and deals with the caller (perhaps forwarding them to another number). Can we detect when the answering service picks up to handle the call and terminate the recording/hangup? Is there an event raised? I understand we can detect when an answering machine picks up (beeps) but is the above possible?</p>
  
  <p>Thanks.</p>