Asterisk VOIP Tips

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I don’t know how I missed this, but I just came across an excellent Asterisk How-to guide on howtoforge.com, the excellent site that houses an increasing amount of guides of doing many things on Linux. The article is entitled “Installing the Asterisk PBX and The Asterisk Web-Based Provisioning GUI on Linux” and it provides a good step-by-step guide on getting started with Asterisk PBX on your favorite Linux distribution.

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Sure, you know about the basic features that come with your PBX systems. Features such as call forwarding, voicemail, call accounting, configurability, etc. But for those who haven’t been able to explore the full extent of their PBX’s features yet, this article will give you an idea of the more advanced PBX features you might have overlooked. Hope this post will teach you how to take full advantage of your business phone system.

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Gateways are essential aspects of any enterprise VoIP system. These transfer voice (and other traffic) between the Public Switched Telephone Network (PSTN) and the IP (Internet Protocol) network. This means VoIP gateways should be able to do much more than traditional PBXes that only interface your internal analog network with the PSTN. As such, you should also expect the gateway to handle other tasks, such as call management, and routing of voice traffic, and translation across the various VoIP protocols, when needed.

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The configuration files in Asterisk are all text based. Nothing too complicated. If you installed the sample .conf files, then they will have a default setup and will have everything commented nicely so that you can learn your way through them.

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My last post has generated some great comments (as I hoped it would) from those who have a lot more experience using Wireshark to view the network traffic from a SIP call. We’re going over these in more detail on the * forums, but one smart commenter brought a paper to my attention that will be great research material. Read the rest of this entry »

This time we will install a network protocol analyzer to watch the traffic on our LAN from initiating and connecting a SIP call.

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To get started on some askerisk hackin’, let’s head on over to nerdvittles for a very nice treat from a fellow Charlestonian asterisk guru (much more than I).

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