SIP, H.323 and Jingle have been widely used as VoIP protocols. As the session establishment period differs in these protocols and their different implementations, interoperability problems occur. This paper presents a middleware on mobile devices with a generic framework supporting the three protocols and their different implementations. The applications ( rmobvoip, rmoblog, mobrmi, mobcorba ) ...

People have been utilizing Voice over Internet Protocol (VoIP) in most of the conventional communication facilities which has been of assistance in the enormous attenuation of operating costs, as well as the promotion of nextgeneration communication services-based IP. As an intimidating upshot, cyber criminals have correspondingly started interjecting the environment and creating new challenges...

BACKGROUND The association between the orosensory detection of lipids, preference for fatty foods, and body mass index (BMI; in kg/m(2)) is controversial in humans. OBJECTIVE We explored the oral lipid-sensing system and the orosensory-induced autonomic reflex system in lean and obese subjects. DESIGN Lean (BMI: 19 to <25; n = 30) and obese (BMI >30; n = 29) age-matched men were enrolled. T...

A growing class of applications, including VoIP, IMS and Presence, are enabled by the Session Initiation Protocol (SIP). Requests in SIP typically traverse through multiple proxies. The availability of multiple proxies offers the flexibility to distribute proxy functionality across several nodes. In particular, after experimentally demonstrating that the resource consumption of maintaining stat...

Because of the best-effort service in Internet, direct routing path of Internet may not always meet the VoIP quality requirements. Thus, many researches proposed Peer-to-Peer VoIP systems such as SIP+P2P system, which uses relay node to relay RTP stream from the source node to the destination node and uses application-layer routing scheme to lookup the best relay nodes. The key of those systems...

While more and more users turn to IP-based communication technologies, privacy and anonymity remain largely open issues. One of the most prominent VoIP protocols for multimedia session management is SIP which, despite its popularity, suffers from security and privacy flaws. As SIP messages are sent in plain text, user data are exposed to intermediate proxies and eavesdroppers. As a result, info...