The Changelog: Software Development, Open Source

Adhearsion, Telephony, XMPP (Interview)

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Wynn caught up with Ben Klang and Ben Langfeld of the Adhearsion project to talk about Adhearsion 2.0, the future of telephony apps, XMPP, and more.

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Featuring:

  • Wynn Netherland – GitHub, X

Show Notes:

  • Ben Klang Principal/Technology Strategist at Mojo Lingo, Project Lead for Adhearsion.
  • Ben Langfeld developer at Mojo Lingo, member of Adhearsion core team.
  • Adhearsion is an open source voice application framework.
  • Rails developers will find some familiarity in Adhearsion’s controllers and routers.
  • Adhearsion just released version 2.0.
  • New in 2.0, Adhearsion supports multiple backends including Asterisk, PRISM, Tropo, and others.
  • Tropo underwrites the development of Adhearsion and also provides features not available on Asterisk, such as high quality text-to-speech.
  • IVR stands for Interactive Voice Response.
  • Adhearsion plugins are simply gems that extend the Adhearsion DSL and are similar to Rails’ Railties.
  • XMPP support has been extracted into a plugin.
  • Adhearsion models voice applications as MVC.
  • Planning is starting for the next Adhearsion Conf. Follow @AdhearsionConf for details.
  • You can watch the AdhearsionConf videos.
  • These well done videos were done by our friends Opus Video. We love their split screen presentation. Never miss the speaker or the slides.
  • Video is still the frontier for telephony apps.
  • Ben Langfeld loves XMPP and helps maintain the Blather library, written by Jeff Smick.
  • XMPP pub-sub is hot right now, as employed by the likes of Superfeedr, the subject of Episdode 0.3.7.
  • Punchblock “is a middleware library for telephony applications. Like Rack is to Rails and Sinatra, Punchblock provides a consistent API on top of several underlying third-party call control protocols.”
  • Adhearsion uses Celluloid which makes Ruby “look and smell a bit like Erlang, but without the yuckiness.”
  • Mike Perham, Tony Arcieri, and Charles Nutter inspire Ben and Ben.

    • Special thanks to Julius Francisco for helping to arrange this episode.

    Something missing or broken? PRs welcome!

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