Curious about adding voice menus and phone interactivity to your web apps? Twilio makes it easy and affordable to POTS-enable any app with just a few lines of code. Presentation references the twiliokit app on github.

1. CodeStock is proudly partnered with:
RecruitWise and Staff with Excellence - www.recruitwise.jobs
Send instant feedback on this session via
Twitter:
Send a direct message with the room number to @CodeStock
d codestock 503 This session is great!
For more information on sending feedback using Twitter while
at CodeStock, please see the “CodeStock README” in your
CodeStock guide.

3. Introduction to Twilio
Michael Kimsal, WebDev Publishing

4. FAT PENGUIN

5. Introduction to me :)
• Web development since 1996
• Mostly PHP, with some ASP, Perl and
Groovy over the years
• Publisher of GroovyMag and JSMag
• Host of webdevradio.com podcast

6. What is Twilio?
• Phone service in the sky
• Akin to a hosted Asterisk
• No hardware costs - pay as you go
• SMS,Voice calls, Automatic translations
• Built on the Amazon cloud

7. What can Twilio do?
• Phone recordings
• Conference calls
• Phone polls and voting
• Custom phone trees

8. What can’t Twilio do?
• Voice recognition
• No way to deal with “say yes” type apps
• Establish numbers outside US
• Can *call* outside US
• Probably other things I haven’t hit yet :)

9. OpenVBX
• Recently announced openvbx.org, a turnkey
open source PHP framework for managing
a phone system
• Mixed reaction - seen as competing with
developer community a bit

10. How does it work?
• register for account
• $30 sandbox credit
• sandbox dial in number
• uses acct-specific PIN code (only for
sandbox number)

11. How does it work?
• Map incoming number to URL
• Twilio server makes requests to your URL
• Your server app responds with TwiML, XML
for Twilio

12. Account Dashboard

13. Connect # to URL

14. Twilio POST to you...
$_POST[‘CallGuid’]
$_POST[‘Caller’]
$_POST[‘Called’]
$_POST[‘CallStatus’]
$_POST[‘CallerCity’]
and more...
http://www.twilio.com/docs/api/2008-08-01/twiml/twilio_request

15. You send back TwiML
<?xml version="1.0" encoding="UTF-8" ?>
<Response>
<Say>Hello World</Say>
<Play>
http://api.twilio.com/Cowbell.mp3
</Play>
</Response>

16. Twilio Verbs
<Gather> <Play>
<Dial> <Conference>
<Record> <Redirect>
<Redirect>
<Hangup>
<Sms>

17. Let’s look at code
• Will be demoing PHP code in with Zend
Framework
• http://bit.ly/a7bT8h - good example of
ASP.NET MVC app with Twilio services
• Twilio has good Ruby and PHP libraries
• Has others, not as full featured yet

18. Code!

19. Questions?

20. Thank you
Michael Kimsal
919 827 4724
michaelkimsal.com/blog
@mgkimsal