Dial A Joke with Asterisk

Dial-a-Joke with Asterisk
Alex Dong @ Sydney Barcamp 2009
http://www.AlexDong.com /

What’s Dial-a-Joke
A telephone service that users can call to listen to previously recorded jokes.
Goal: call a SIP address to listen to a random one from http://joke.alexdong.com /
SIP PBX TTS JOKE Asterisk Ceptral Swift Softphone X-lite

Heavylifting - TTS
text=`curl -s http://joke.alexdong.com/` swift -o /tmp/joke.wav -p audio/channels=1,audio/sampling-rate=8000 " $text " wait sox /tmp/joke.wav /tmp/newjoke.wav trim 7.5 cp /tmp/newjoke.wav /tmp/joke.wav

Asterisk on OSX
sudo port install asterisk
/Library/Asterisk/
sudo asterisk -cb

Asterisk - SIP Channel
sip.conf
[alex] type=friend username=alex secret=!@#$!#@$ host=dynamic context=joke

Asterisk - Workflow
[tour] exten => 1,1,Answer() exten => 1,n,System(~/joke.sh) exten => 1,n,Playback(/tmp/joke) exten => 1,n,Hangup()

SIP Softphone

http://asterisk.ru	106
http://mobile.asterisk.ru	17
http://www.slideshare.net	6

Dial A Joke with Asterisk

by alexdong on Jun 25, 2009

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