Now that everything is all setup, let’s run through and test the application.Īfter starting up Asterisk and our softphones on each of our machines in the topology, we start up the Node Notification Server with node server.js where server.js is the name of our server script. = // // = Configure Express HTTP Server = // // = // var app = express ( ) Īpp. We will see later in our configuration that the VoIP client khalil is registered on the Windows 8 machine and the VoIP client asia is registered on the Ubuntu Desktop machine. The topology shown in Figure 1 is comprised of 2 VoIP clients (a Windows 8 machine and an Ubuntu Machine) each configured with their own respective softphone software, one Cisco c7200 Router allowing internet access through NATed interface and a CentOS machine running the Asterisk PBX and our Node Notification Server code. Setup Node.js HTTP Server and Notifications Server.Configure Demo User Agents in sip.conf.Asterisk Manager Interface configuration to allow our Node.js script to listen for events over TCP.You can visit the code on Github here at How we’ll do it: To do this, we’ll use Node.js to detect a missed call to our VoIP phone through the Asterisk Server and use Twilio to send an SMS to our mobile phone notifying us of the missed call and the calling extension address. The CallerID Superfecta doesn't get rid of the creeps that call wanting to sell you something or urging you to vote for your favorite Coroner. As a final project for the class, I decided it would be cool to set up a system that works with Asterisk to notify a VoIP user of a missed call via SMS. Now sit back and enjoy a much enhanced CallerID experience when incoming calls arrive on your Asterisk server. I was recently exposed to Asterisk in my Public Carrier Systems class. Run on Linux, it can be used to set up a PBX (Private Branch Exchange), VoIP conference calls or even to connect to the PSTN– the legacy telephony system we all know and use today! That doesn’t even scratch the tip of the iceberg with things you can do with Asterisk. Asterisk is an open source framework for building communications applications.
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