Writing coherent dialogs using Twilio

This article shows the complexity of writing a multistep interactive voice dialog for cloud telephony. It presents our dialog package to create such a dialog as a single and simple coherent script in Tcl. The script performs programmed interactive voice or messaging interaction using the popular cloud telephony platform, Twilio.

It should also work, after trivial modifications, with other similar systems such as Restcomm or Somleng that use TwiML or similar markups. The package can further be extended to support other popular dialog languages such as VoiceXML. The core idea can be re-implemented using other scripting languages such as Python.

Scripting VoiceXML and TwiML using Tcl

This article describes how to write XML-based programmable scripts such as for W3C's VoiceXML or Twilio's TwiML using Tcl, the Tool Command Language. The associated project is available as open source software at http://github.com/theintencity/tcl-vxml-twiml.

1. How easy is a programming language?
2. What is Tcl?
3. What are XML-based documents?
4. How do I get started?