Building Telephony Applications with Perl and TwiML Dec 12, 2011 by Scott Wiersdorf Perl makes writing Twilio telephony applications simple and enjoyable. My previous article, Automating Telephony with Perl and Twilio showed how to use WWW::Twilio::API to make a phone survey using Twilio’s text-to-speech synthesizer as well as send an SMS message to a phone number of your choice. This article buil