[danielle17]

Thanks, there are different challenges with international routing by country and by receiving carrier. I'll definitely pass this information along, and if you have specific calls (I'd need your Twilio account ID to look at them, better sent via email) that will help a lot, too. We know international support is important to developers everywhere, and we're definitely working on it.

[visionik]

International is hard. I know from experience. That's where Tropo has one clear advantage over Twilio. Tropo is built on the Voxeo network, which has ten years of international experience, is deployed world-wide (seven data centers), and integrates directly with most of the carriers around the world.

I believe Twilio integrates directly with a single carrier (Level3). Last I checked they use/resell bandwidth.com for most of their calls.

-Jonathan (Voxeo CEO)

[jeffiel]

To correct a misconception, Twilio works with a variety of carriers, including Level3 and Bandwidth.com. Much like Google Voice, we work with a plurality of vendors for redundancy, geographic coverage, etc..

Voxeo also works with Bandwidth.com. "Bandwidth.com shares Voxeo's 'All-IP' worldview and as a result is an important voice network partner for us." --Jonathan Taylor, Voxeo CEO

http://bandwidth.com/about/read/flexNetwork.html