— Voice over IP (VoIP) services based on the Session Initiation Protocol (SIP) gain ground as compared to other protocols like MGCP or H.323. However, the open SIP architecture c...
These days a massive deployment of VoIP is taking place over IP networks. VoIP deployment is a challenging task for network researchers and engineers. This paper presents a detaile...
VoIP represents the future of digital voice communications and many carriers are preparing for the VoIP revolution. However, a number of outstanding issues need to be settled. The...
Many emergent security threats which did not exist in the traditional telephony network are introduced in SIP VoIP services. To provide high-level security assurance to SIP VoIP s...
-- Voice services over Internet Protocol (VoIP) are nowadays much promoted by telecommunication and Internet service providers. However, the utilization of open networks, like the ...