Session Initiation Protocol (SIP) was conceived in 1996 as a signaling protocol for inviting users to multimedia conferences. With this development, the next big Internet revolution silently started. That was the revolution which would end up converting the Internet into a total communication system which would allow people to talk to each other, see each other, work collaboratively or send messages in real time. Internet telephony and, in general, Internet multimedia, is the new revolution today and SIP is the key protocol which allows this revolution to grow.

The book explains, in tutorial fashion, the underlying technologies that enable real-time IP multimedia communication services in the Internet (voice, video, presence, instant messaging, online picture sharing, white-boarding, etc). Focus is on session initiation protocol (SIP) but also covers session description protocol (SDP), Real-time transport protocol (RTP), and message session relay protocol (MSRP). In addition ... Read more to Download »

3D World is the best-selling international magazine for 3D artists, covering the fields of animation, VFX, games, illustration and architecture. Each issue provides analysis of latest trends in the market, artistic and technical advice, impartial product reviews, and exclusive behind-the-scenes articles on the making of key projects in this fast-paced industry. For those wanting to improve their technical skills, the magazine provides tutorials, tips and step-by-step guides covering every major 3D software package, from freeware to professional applications such as 3ds Max, Maya, Cinema 4D, LightWave 3D and Softimage.

Download 3D World – March 2011 Edition