Asterisk Call Notifications to PushBullet

Pushbullet Notification for an Incoming Call - not my real number!
Pushbullet Notification for an Incoming Call – no, it’s not my real phone number 🙂

Several years ago, I wrote a python script to notify me when my asterisk server got an incoming call. I programmed this out of pure laziness: I wanted to know who was calling me without having to look at my phone.
This script would show a pop-up on my laptop whenever I got a call and the notification would show who was calling and for whom. This was very useful since I was traveling a lot during that time, so I would know if somebody was trying to reach me at home.
I’m still using this script, but I’m finding myself using my cellphone more often than my laptop when I’m out of the house. So, I modified my script to send a notification to my smart phone instead of my laptop.
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Incoming call popup under Ubuntu and Asterisk

When I worked in a survey firm, I was tasked with building a VOIP system to cut costs and to raise productivity. The biggest productivity drain in an outbound call center is the dialing time and getting someone on the line. By implementing an Asterisk server, we could control and expand the server to our needs. Furthermore, this meant we could have remote workers. We saved a bundle of money in long distance and in fixed costs. The hosted server and the bandwidth itself cost about 80$ a month, while the connectivity to the phone network was negligible and, more importantly, flexible. In other words, if it was a slow month, the cost was low, and conversely, if it was a very busy month, the costs were higher but the money was coming in.

Incoming call popup
Incoming call popup

Since it was my server and I was billing the company for it, I figured I could use the same server for my personal phones. So I decided to connect my PSTN numbers to this system. I could now use the server as my private VOIP server.

After configuring the VOIP server to my liking, I started to explore the Asterisk API and related Java and Python bindings. My first module was an interactive IVR system to manage callbacks from the survey outbound number. The callers could know who called them and remove their number from our calling lists.

Update (2012): Modified code for asterisk 1.6
Update (2014): Added code (end of page) for KDE

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