A comparative study of SIP programming interfaces

Analysis and Modeling of VoIP Servers: A Linear Programming Approach

The SIP protocol was standardized by the IETF at the application layer for initiating, managing, and terminating multimedia sessions and has been widely used as the main signaling protocol on both the Internet and VoIP networks. Most challenges in this protocol are overload and lack of proper state distribution. These challenges cause a wide range of next-generation network users to face a shar...

PrivaSIP: Ad-hoc identity privacy in SIP

Security testing of session initiation protocol implementations

The mechanisms which enable the vast majority of computer attacks are based on design and programming errors in networked applications. The growing use of voice over IP (VOIP) phone technology makes these phone applications potential targets. We present a tool to perform security testing of VOIP applications to identify security vulnerabilities which can be exploited by an attacker. Session Ini...

A Survey of Open Source Products for Building a SIP Communication Platform

The Session Initiation Protocol (SIP) is a multimedia signalling protocol that has evolved into a widely adopted communication standard. The integration of SIP into existing IP networks has fostered IP networks becoming a convergence platform for both realtime and non-real-time multimedia communications. This converged platform integrates data, voice, video, presence, messaging, and conference ...

A Push-Based VoIP Service for an Internet-Enabled Mobile Ad Hoc Network

VoIP (Voice over IP) services are gaining more popularity recently. This work considers providing VoIP services in an Internet-enabled mobile ad hoc network (MANET). Since MANET does not have a fixed connection to the Internet, we propose to attach one or multiple cellular interfaces to the gateway of the MANET to establish the connection so that users can enjoy mobile VoIP services. Connecting...