Nowadays, is more and more usual to implement the voice service over Internet (VoIP), due to the reduction in price both for the network operator and for the final users. In this paper, it is presented a new traffic shaper that increases the number of stablished connections and minimizes the delay time in the case of using an IP/ADSL (Internet Protocol/Asymmetric Digital Subscriber Line) enviro...

Traditional valuation tools do not adequately support management’s decisions because they ignore the benefits of managers’ flexibility and future opportunities. A new technique for evaluating strategic investment decisions is the real options approach, which is capable of including the value of active management and strategic opportunities under uncertainty. This paper applies real options tech...

VoIP (Voice over IP) services are using the Internet infrastructure to enable new forms of communication and collaboration. A growing number of VoIP service providers such as Skype, Vonage, Broadvoice, as well as many cable services are using the Internet to offer telephone services at much lower costs. However, VoIP services rely on the user’s Internet connection, and this can often translate ...

With the advent of various web-based applications and the fourth generation (4G) access technology, there has been an exponential growth in the demand of multimedia service delivery along with speech signals in a voice over internet protocol (VoIP) setup. Need is felt to fine-tune the conventional speech codecs deployed to cater to the modern environment. This fine-tuning can be achieved by fur...

In recent years, there are growing interests to provide telephone services over the Internet. In particular, Internet Services Providers (ISPs) may become the next generation telephone company especially in providing international telephone services. This paper proposes a novel method called quantum IP (QIP) for transporting international voice traffic over the Internet via QIP routers. Emulati...

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 softphones on the Internet by determining call quality and measuring the values of jitter, delay, and packet loss. We also conduct experiments on a LAN to test the limits of the bare PC softphone under heavy load conditi...

The convergence of traditional telecommunications and the Internet is creating new network-based service delivery opportunities for telecommunications companies carriers, service providers, and network equipment providers. Voice over Wireless IP is one of the most exciting new developments emerging within the telephony market. It is set to revolutionize the delivery of mobile voice Services and...

This document defines terminology and enumerates requirements for the context resolution of emergency calls placed by the public using voice-over-IP (VoIP) and general Internet multimedia systems, where Internet protocols are used end-to-end. Table of

In this paper new, lightweight security and control protocol for Voice over Internet Protocol (VoIP) service is presented. It is the alternative for the IETF’s (Internet Engineering Task Force) RTCP (Real-Time Control Protocol) for real-time application’s traffic. Additionally this solution offers authentication and integrity of voice send and it is capable of exchanging and verifying QoS and s...