I'm Tropo's product manager. We've got quite a few companies using Tropo in significant capacity. In fact, because of our ability to scale and telephony experti

I'm Tropo's product manager. We've got quite a few companies using Tropo in significant capacity. In fact, because of our ability to scale and telephony expertise (Tropo's a product from Voxeo, the largest worldwide voice application host), we regularly see customers switch from other providers to Tropo.