Add Voice and SMS to Your Applications
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Why people like Tropo
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Tropo is a powerful yet simple API that adds Voice and SMS support to the programming languages you already know.

Tropo's Features
  • Develop for FREE- Pay when you're ready- Tropo is completely free for developers. Pay when you deploy and only for what you use.
  • Feature Complete- Get all the features you want, today. Speech input, multi-language, and more.
  • Amazing Support- Ask us questions 24 hours a day. Via the web or IRC.
  • Backed by Voxeo- The worlds largest scalable, real-time app cloud.
  • Over 200,000 developers and thousands of apps.




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