Recently, there has been a strong focus on the development of scalable voice over IP (VoIP)
protocols, which are suitable for wide scale deployment. SIP (session initiation protocol) is …

Bare PC computing is a novel approach to computing in which there is no operating system,
and applications are provided with direct interfaces to the hardware. Bare PC systems are of …

Unsolicited bulk email or spam is a menace to the usability of Internet email. The possibility
of cheap Voice over IP (VoIP) services have introduced the threat of Spam over Internet …

As an extensible signaling protocol, SIP (session initiation protocol) can be applied in
developing video conference system. Traditionally, for SIP-based centralized video …

In this paper, we present and evaluate the performance of a mobility management system
called the Proactive and Adaptive Handover (PAHO) system. PAHO is an application-level …

Bare PC applications run on ordinary desktops and laptops without the support of an
operating system or kernel. They provide immunity against attacks targeting an underlying …

Voice over Internet Protocol (VoIP) is an active area of research in the world of
communication. The high revenue made by the telecommunication companies is a …

In this paper, embedded software engineering approach is employed for the development of
a SIP-based VoIP server. Signaling control functions of SIP servers are integrated and …

We describe the architecture, design, and implementation of a VoIP softphone that runs on a
bare Intel-386 (or above) based PC. We compare the performance of bare PC and WinRTP …

SIP认证机制的研究和改进 Page 1 CN431258/TP ISSN 1007—130X 计算机工程与科学
COMPUTER ENGINEERING & SCIENCE 2006年第28卷第4期 V01.28.No.4.2006 文章编号:1007—130X(2006)04—0013—02 …