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This paper aims to describe the effect of VoIP network architectures on the cost modelling of termination rates of VoIP services.

The study investigates and organises the arguments available in the technical and regulatory field related to VoIP networks and services in order to ascertain the possible impact of VoIP techniques, the provisioning of voice features in VoIP networks, and network interconnection issues on the cost of regulated VoIP services.

The information and analysis reveals how the provision of VoIP services is related to a number of issues that will have an effect on the cost of VoIP termination rates. In particular, the study analyses the impact on a cost model of the components of a VoIP network architecture, the usage factor of network elements, and the traffic volume generated by VoIP applications.

The issues described in the article can be used in elaborating a cost model for termination rates in VoIP networks. For the present study, no cost model was built, and therefore no quantitative estimations were made of the specific impact of every cost parameter on the termination rates.

The findings of this study can be used by policy makers, voice operators, and researchers.

Most studies of VoIP that are available in the literature address, on the one hand, the costs of corporate VoIP networks and, on the other, the regulation of VoIP services. This article, however, presents a comprehensive study of the most relevant features of VoIP network architectures that should be considered when determining regulated termination rates.

Global commerce demands flexibility in when and how work gets done, as modern businesses increasingly require real‐time responses to partners and customers. With low costs, companies look to mobility as a way to speed responsiveness and increase the personalization of customer service offerings. Mobility is a key element of networking allowing enterprises to unlock their business process from fixed points. A unified approach to enterprise mobility delivers integrated wired/wireless networking, mobile extensions to unified communications, geographic, and end‐point independent network access and location services as major architectural components. As a consequence, this paper aims to focus on a converged architecture that spans wired and wireless networks to enable a seamless delivery of integrated services across the enterprise.

This paper builds a framework to facilitate a continuous delivery of voice services. It also examines an architecture that traverses wireless local area network and local area network. And, proposes a mathematical model of the services delivery in order to analyze network behavior as a response to the new services introducing.

The authors constructed a service scenario framework and also put forward an analytical model of the services delivery for analyzing network behavior response for the inclusion of new services. They also evaluated a network infrastructure, services, and applications, including the prospective converged services, as well as the technology for the transition to future services.

This paper contributes to the development of seamless services delivery model for providing enhanced business services to the enterprise customers along with the ability to migrate more tightly.

Telecom in developing countries faces a distinct challenge as compared to developed countries. The technology of voice over Internet protocol (VoIP) would be a key enabler for growth and service delivery in the former case. VoIP, though reported not widely accepted in developed countries, would be acceptable in developing countries owing to its affordable quality and lower costs. This hypothesis was tested through a user survey conducted recently in India. Five different attributes of voice quality, telephone billing, VAS, reliability and responsiveness were analysed for testing the hypothesis, along with a few case studies from other developing countries.

The internet has been used to transport data in the form of packet. Multimedia applications including voice and video are being sent using the internet. In the past, the internet did not support any kind of sophisticated quality of service (QoS) mechanism. Although the type of service (ToS) field in the internet protocol (IP) header has been present and allowed the differentiated treatment of packets, it was never really used on a large‐scale. IP applications have been mostly used on terrestrial networks so far. This paper aims to describe the architecture of a DVB‐RCS based satellite network supporting interactive and multimedia applications.

The use of TCP/IP has made it possible to have two way communication using open standard satellite networks based on digital video broadcast return channel via satellite (DVB‐RCS). The voice and video are sensitive to delay and jitter so bandwidth must be guaranteed while transporting it. With the extensive use of IP for carrying voice and video, there is a need to add QoS functionality in satellite networks. The performance of data transfer using voice and video with reference to QoS parameters in satellite network is analyzed in this paper.

The results show that satellite networks based on DVB‐RCS can carry voice and video traffic and offer good quality of service in terms of packet loss and jitter but are poor in quality in terms of packet delay.

This paper describes the architecture of a DVB‐RCS based satellite network supporting interactive and multimedia applications.

The purpose of this paper is to present the necessary analyses to be made by incumbents and other players in the telecommunication sector regarding the change from PSTN voice services to voice over IP (VoIP). This change will in many circumstances be combined with the supply of TV via the broadband access connection (TVoIP). Thereby, triple play can be offered.

This paper provides a description of trends for demand and supply for VoIP and TVoIP and analyses of consequences for market structure, prices and regulation.

Price issues as well as strengths and weaknesses for the different players are presented. The introduction of VoIP and of TVoIP will also change the regulatory regime. Two‐way access interconnection problems will increase and the choice between the peering or termination payment needs to be made.

The paper provides a framework allowing different kinds of player to assess strategies of whether, how and when they might enter the VoiP market.

This paper presents a non‐intrusive method of determining network performance parameters for voice packet flows within a Voice over IP, or Internet Telephony call. An advantage of the method is that it allows not only end‐to‐end performance monitoring of flows, but also makes it possible to inspect the transport parameters of a specific network or link when delay sensitive traffic transits through it. The results of a preliminary test, to check the validity of the method, are also included.

This paper aims to examine the design and implementation of an advanced ToIP platform for the interconnection of ToIP operators based on the concept of multilateral peering, with a special focus on the design requirements and implementation.

Based on the key design requirements of a ToIP peering platform analysed at the beginning of the document, an open source‐based network architecture is proposed. Subsequently, a detailed explanation of the elements and their functionalities that integrate both core platform and management platform is presented.

The paper finds that open source‐based ToIP platforms provide a cheap solution for deploying ToIP services such as ToIP peering. Although not as stable as hardware‐based ToIP platforms, software‐based platforms provide a very scalable high‐performance solution for delivering customised ToIP services.

The paper studies the implementation of advanced VoIP services such as video telephony and the call termination in public switched telephony network or mobile networks.

The deployment of an experimental ToIP peering platform in Catalonian will help to the large‐scale adoption of ToIP by both enterprise and residential customers. Furthermore, operators can reduce both capital and operating expenditures if they exchange traffic through the ToIP peering platform, reducing, thus, the cost of ToIP calls to end users.

The paper aims to discuss the business issues surrounding the choice between the end‐to‐end internet architecture, in particular peer‐to‐peer networks, versus managed telecommunications architectures, in particular IMS, for the migration towards a next‐generation mobile system.

The paper organises the arguments available in the literature and technical field along four critical business design dimensions, providing a balanced overview of both sides of the argument.

The paper discriminates between weak and strong arguments on both sides, and introduces a number of recommendations towards actors that will implement IMS.

The arguments collected from the literature and industry are not exhaustive but selected on their relevancy for business repercussions.

While most position papers on IMS or P2P are written from an opinionated perspective, this paper offers a trade‐off view of both side's advantages and disadvantages. It reframes the dispute as a number of design trade‐offs to be made on various levels.

This paper aims to share the vision of integrated building systems based on internet protocol (IP) based on the presentations and facilitated discussions at the BuilConn: Cisco's Connected Real Estate Roundtable in Spring 2006.

Based on the observation of the BuilConn Conference Roundtable and related literature, this paper lays out requirements to support IP‐ and computer‐based integration of building systems.

The authors detail the value proposition, challenges, and related engineering and business transformations of integrated building systems. While cost savings, new advanced services, and flexibility in building operations are the major benefits, the main challenges are the missing awareness and knowledge in the building industry, the educational gap among real estate professionals and owners, the implementation of appropriate security, the use of intelligent building technology, performance and cost saving issues, specific problems for building renovation projects, and the realization of reliable critical building operations. Furthermore, the balance between IP and non‐IP devices, benefits of the IP itself, and the need for more elaborate standards were discussed at the Roundtable. The Roundtable participants identified the following critical transformations within the building project environment to make integrated IP‐based building systems a reality: more flexible design, construction, and facility management contracts, earlier involvement of integration experts, and more flexibility in today's design process.

The participants felt that only when these transformations are accomplished and the mentioned challenges resolved will companies be able to take full advantage of the benefits and realize the vision of integrated IP‐based building systems.

This paper summarizes the presentations and facilitated discussions at the Roundtable, which have, so far, only been accessible to the roundtable participants, and provides a reflecting point of view of participants from the building industry, building owners, and academic representatives on strategic and operational issues around IP‐based building systems.

Emerging real‐time multimedia services over IP have penetrated into the daily lives of normal people with the advent of advanced broadband communications and innovated interconnection technologies. To protect shared Internet from unfairness and further congestion collapse, rate control plays a crucial role for many multimedia services such as streaming applications. Streaming applications such as video on demand (VoD) or voice over IP (VoIP) services face some critical problems such as insufficient bandwidth and improper performance of transmission protocols. Besides, the new generation networks are anticipated to integrate all heterogeneous wired and wireless networks and offer seamless customized multimedia services anywhere, anytime. However, wireless networks usually with low and variable bandwidth, and non‐congestion related loss do bring the challenge to the existing transport protocol, such as TCP, TFRC etc.

The paper uses simulations and compares other methods. The purpose of this paper is to address these issues. The paper, proposes a rate control scheme named Jitter‐based Rate Control (JRC) to fit wired‐wireless hybrid network which has better performance than the current rate control scheme.

Extensive simulations and comparisons with other methods verify the effectiveness of our method for accurate and smooth estimation, no matter whether the wireless links are located.

The paper introduces the JRC.