Tropo

Tropo enables you to make and receive phone calls and text messages from any web or mobile application, using a simple web API and pay-as-you-go pricing. Tropo also offers voice recognition (in 24 languages), text to speech (with more than 70 voices), conferencing, even recording and transcription – all using the web technologies and languages you already know. Host your code with Tropo or use an existing web server, then with just a few simple added commands, your apps will be enabled with real-time communications functionality. No need to learn new languages, wrestle with VoIP software, or even learn about telephony beforehand – it really is that easy, whether you’re looking to create professional grade communications applications or just send a simple SMS thank you to a customer.