Product Description
This book covers all aspects of telephony over IP networks, known as Voice over IP (VoIP). VoIP hit the headlines during the mid-1990′s amid claims concerning its impact upon existing Switched Circuit telephony services. Whilst VoIP has clearly provided a focus for much debate within the telecommunications industry, there has been a clear gulf between hype and reality. This book examines VoIP as a technology and its consideration within the industry, the motivations for VoIP networks, a review of the status of the major components of a VoIP network and their development, and both current and emerging applications. This makes for essential reading for those with a technical or business interest in this rapidly developing area of telecommunications.Also available:Telecommunications Network Modelling, Planning and Design – ISBN 0863413234
Location and Personalisation: Delivering Online and Mobility Services – ISBN 08634133820852960298… More >>

Voice Over IP: Systems and Solutions

In order to understand how VoIP works for the benefit of a business, let us first make a glance into its functioning:

VoIP or Voice over Internet Protocol refers to the technology which allows voice communication to take place over the Internet. VoIP Phone Systems utilize this technology to convert audio signals into digital format for internet transmission and then again convert the digital signals into the telephone audio. In this way, IP Phone sets allow the communication to take place using the internet connection.

A VoIP Phone system is designed specifically for Internet Telephony from which long distance calls can be made at much lower cost.

Voice over IP system and business

Business activities are growing complex and in order to be successful, one has to keep track of the latest changes and communicate it to the employees as well the clients. Every time it is not possible for a business to personally deliver the messages and also it involves a lot of time, effort and money. In such situation, VoIP Phone Sets offer the advantage of making calls to any location via the internet. So, a business can connect to all its branches anywhere in the world by replacing its old telephone equipment with an IP phone set. VoIP makes communication quite easy within an organization which entails greater work efficiency. No matter where headquarter of a business is, important information is timely delivered among its employees at various office locations. Nowadays organizations also rely on video conferencing for better communication.

Fast forward 15 years and things for VoIP have changed dramatically. Now, thanks to a massive advance in technology, a different protocol and the ability to link an ordinary telephone to a Voice over IP system, the voice clarity is equivalent to that of an ordinary telephone landline, if not better. One of the major advances has been the increase in Internet broadband speeds. Thanks to fibre optics and a host of advances in broadband technology, the old bugbear of connections being dropped in the middle of a call that the old Voice over IP systems suffered from has been eliminated.

New technology and new deals

But its not just new technology that has meant a huge improvement of the voice clarity and quality of VoIP calls. Voice over IP is ideal for businesses that have satellite offices in other parts of the world because of the range of call plans that providers are now offering. With VoIP to VoIP calls charged at a vastly discounted price compared to the more traditional landline calls, many businesses are making large cost savings on their communications bills by adopting a VoIP call plan. It means that they can call an office on the other side of the world for the same cost as dialling a local number, improving business communications and making calls to suppliers and customers cheaper than ever. Call plans can include several countries, free UK and weekend calls as well as specific packages designed to suit the individual customers needs.

Because VoIP uses the broadband system, the clarity of the calls is also better than the crackly, delayed quality that traditional distance landlines offered. This presents a more professional business image and the use of the very latest technology also indicates that the user is up to date with modern business methods. All of this can go a long way to improving a businesss reputation with international customers and associates.

Whats the future for VoIP?

The future is looking good for Voice over IP. The latest technology allows an ordinary phone to be connected to a VoIP system with just a small adapter, meaning that using the technology is literally as simple as picking up the phone. The savings that incorporating a VoIP system into a companys business communications plan are substantial, and as more people adopt VoIP, the marketplace is growing at a phenomenal rate. Better quality and flexible call packages designed to suit any size business also means that the advantages of VoIP are not restricted to big business. Small and medium sized companies can take advantage of the latest in telephony as well. Communications experts are watching the VoIP phenomenon with interest, and it could be that, particularly for international calls, the old landline system is in its twilight years, eclipsed by a faster, cheaper and better quality technology. VoIP is the future of business communications, and its all thanks to broadband.

A VOIP telephone is changing the way personal users talk to their families and giving them more time to share and communicate like it was originally intended. Distance no longer needs to mean cost thanks to VOIP telephone services.

Having a VOIP phone may make you the most popular person in the office. Imagine having the capability to use your VOIP anywhere in the world and still get excellent rates, possibly even pay no money at all, for long distance phone calls.

Incoming calls can be automatically moved to your VOIP phone, regardless of where you have decided to connect to the VOIP network. This gives the VOIP phone user a great deal of mobility and functionality, on the road or abroad. The VOIP telephone is certainly the thinking person’s communication device, enabling the entire world to draw closer as the user continues to move through it.

Business VOIP is one of the most popular services available from VOIP providers. Most providers offer free VOIP telephone numbers to use nearly everywhere in the world. These numbers are arranged through organizations that compile and connect people on VOIP networks.

VOIP User is one of these organizations and it enables customers the ability to connect to any network and at time anywhere in the world for free. This mobility makes VOIP telephone systems the wave of the future for corporate users and for business VOIP plans.

You can also use a VOIP call center to enable connectivity for customer service at all hours of the day, every day, any day of the year. This type of service is unique to VOIP users because the VOIP call center can actually be mobile, too. As long as the VOIP call center user has a good connection to the internet or to another network, helping out with customer service calls is possible.

Many VOIP systems or providers also provide a series of bundled extras for no extra charge. This PSTN features include great items like 3-way calling, call forwarding, call waiting, automatic redial, and the ever-popular caller ID.

The services VOIP call centers provide are also bundled with these great features, making VOIP an even more popular choice among people looking for a great deal with great service features as well. It is a program that seems too good to be true to many people, but the technology is real and the programs work just as they say they will.

The future in terms of VOIP telephone systems is here. Without a doubt, VOIP telephone technology is on its way to taking over the communications work and establishing new trends within a matter of mere years.

As systems change and evolve to offer even more capabilities to customers, the customer base of companies like Vonage VOIP will grow significantly and people will flock to VOIP providers to upgrade their existing telephone services to something better. VOIP will change the way we communicate once again.

Product Description
The Perfect Reference for the Multitasked SysAdmin
This is the perfect guide if VoIP engineering is not your specialty. It is the perfect introduction to VoIP security, covering exploit tools and how they can be used against VoIP (Voice over IP) systems. It gives the basics of attack methodologies used against the SIP and H.323 protocols as well as VoIP network infrastructure.
* VoIP Isn’t Just Another Data Protocol
IP telephony uses the Internet architecture, similar to any other data application. However, from a security administrator’s point of view, VoIP is different. Understand why.
* What Functionality Is Gained, Degraded, or Enhanced on a VoIP Network?
Find out the issues associated with quality of service, emergency 911 service, and the major benefits of VoIP.
* The Security Considerations of Voice Messaging
Learn about the types of security attacks you need to protect against within your voice messaging system.
* U… More >>

How to Cheat at VoIP Security

Product Description
This book explains why people and companies are converting some or all of their existing (legacy) telephone systems from dedicated telephone systems (such as proprietary PBX) to more standard IP telephony systems. These conversions allow for telephone bill cost reduction, increased ability to control telephone services, and the addition of new telephone information services. Through the use of IP telephony service, companies can immediately reduce their telecommunication costs 40% to 70%. This book provides an overview of the different types of IP Telephony systems including IP PBX, IP Centrex and Internet Telephone systems. You will learn the key functional parts of voice over IP systems and how voice over Internet protocol (VoIP) systems work. Explained are the processes used to setup and control IP telephony service. The common IP Telephony protocols including session initiation protocol (SIP), Media Gateway Control Protocol (MGCP) and H.323 are desc… More >>

Introduction to IP Telephony: Why and How Companies are Upgrading Private Telephone Systems to use VoIP Services, Second Edition