Asterisk is the world's leading open-source PBX, telephony engine, and telephony applications toolkit with immense flexibility. 'Asterisk Gateway Interface 1.4 and 1.6 Programming' book by 'Nir Simionovich' will give you a firm understanding of Asterisk Gateway Interface (AGI) development and proper AGI development practices.

Moovida is what used to be called elisa,it is an open source cross-platform media center solution designed to be simple for people not particularly familiar with computers.
By bringing together all your movies, TV shows, tunes and photos in one simple innovative interface.
More than that, Moovida brings you the best of internet video, music and images to play on your HDTV, laptop or PC.

Sangoma produces telephony cards and writes drivers that work with open source applications such as Asterisk, Yate, FreeSwitch, and CallWeaver. Sangoma CEO and founder David Mandelstam says that before Sangoma started producing cards to work with Asterisk, the open source project was "kind of a toy for hobbyists."

Open source projects have revolutionized operating systems, web servers, web browsers, and so why not carrier switches? The FreeSwitch open source project released its Release Candidate 1 (RC1) yesterday providing and by early accounts the software rocks.

Movial has joined the Khronos Group, and released an interesting "media engine" under the LGPL. The "Movial Octopus Media Engine" targets Linux devices such as MIDs and netbooks equipped with players, voice/video call applications, and other media applications.

One rather old laptop and one server were the test objects for this howto. Both systems do not have any RAID devices and use a simple partition scheme from a default basic Lenny install. If your setup deviates much from this, it's highly recommended to read all details of the Debian Release Notes before you continue. Be warned.

The HP Media Vault is a wonder of feature rich, simple file sharing. Based on Linux, it is capable of some pretty amazing feats despite it's simple, small design. It ships in sizes ranging from 500mb upwards to 1.5tb and is very easy to setup and use. But how simple is simple? A simple as sunshine on a cloudless day. But don't take my word for it. Instead, let me show you.

Asterisk bills itself as "the world's leading open source PBX, telephony engine, and telephony applications toolkit." You can use it as the basis of a fully featured, enterprise-class phone system in your organization.

2,500 years ago, the Chinese philosopher Confucius asked Lao-tzu, the founder of Taoism, "What is Tao?" Lao-tzu opened his mouth but said nothing. Confucius left with a smile, but his students were puzzled. Confucius explained, "Lao-tzu has passed us the Tao. In his mouth, there are no teeth but only a tongue.