title: Twilio, Tropo - who else for SMS and Voice apps?
body: <p>I've found Twilio and Tropo so far as services to aid SMS and Voice apps.</p>
  
  <p>Are there others?</p>
  
  <p>I am interested mostly in real-time speech recognition (i.e. the user can speak things and the system can respond based on that).</p>
  
  <p>Also, if anyone knows what the speech recognition quality is like, it'd help!</p>