WorldOfVoIP

• Nov 25, 2006 : New Skype handset doesn't require a PC -- A Danish company has begun selling a cordless telephone handset that works with Skype and doesn't require a personal computer. The DualPhone 3088's base station connects to both a broadband Internet connection for Skype calls and a traditional analog landline connection for making calls over the PSTN... check out the actual product at www.dualphone.net
• Nov 23, 2006 : Skype Reaches 25 Million Chinese Users -- Skype is available in china in partnership with a Chinese company TOM . It's one of the fastest growing market for skype now. Though skypeOut to china is still not available.
  

Skype is one of the most popular Voice Over IP (VoIP) software around. It has kind of revolutionized the VoIP field. The reason behind that were the great features it started with:

• excellent voice quality
• free computer to computer voice chat
• support for voice conferencing
• transparent working across NAT boxes
• a peer-to-peer design that allowed it to scale

Skype was developed by the same people who designed the Kazaa file downloading system. They have used the P2P skills they have developed for Kazaa in a very successful way to deliver scalable VoIP. The success of the Skype system can be measured by the fact that Ebay paid around $2.6 billion to buy the company. As per november 2006, skype seems to have registered users of 136 million and expected revenues around $200 million.

• H Schulzrinne, J Rosenberg, Internet Telephony: architecture and protocols - an IETF perspective , IEEE Computer Network, Feb 1999
• H Schulzrinne, J Rosenberg, A Comparison of SIP and H.323 for Internet Telephony , July 1998, NOSSDAV'98
• Rosenberg, J., Schulzrinne, H., Camarillo, G., Johnston, A., Peterson, J., Sparks, R., Handley, M., and E. Schooler, SIP: Session Initiation Protocol , RFC 3261, June 2002.
  

Voice Over Internet Protocol (VoIP) is doing voice communication over the Internet. Commonly the voice communication (i.e. telephonic call) is made either over the telephone network (also called PSTN for Public Switched Telephone Network) or over the mobile network using mobile phones.

VoIP allows one to make telephone calls over the Internet..