1.        Backgroud

2.        SIP brief intro

3.        SIP vs. JXTA

4.        DisVoIP bootstrap

Part1: Background

Wireless telephony in the future, 3G? We maybe want to have some alternatives, such as using the Wi-Fi and Skype on WinCE, thought it’s seems somehow awkward, but 802.16 and the WiMAX/Wi-Fi combined wireless world vision did incited my imagination to pursue the possibly, the so-call “WiMAX Phone”: a hand-held device provides VoIP and multimedia service which highly relevant to Web. No matter it’s hype or not: but I did see Skype becoming popular, while none of them think they would use Skype to dial an emergency number.