Technology makes the common man’s life easier and comfortable. Making frequent international calls was unthinkable as they were expensive and lacks in accessibility. But, nowadays things have changed dramatically with an introduction of VoIP. The voice over IP is an inexpensive and high tech solution to make international calls economical and affordable for business entities, professionals as well as common men. As a matter of fact, the cost of making internet telephony calls is at least three times cheaper than the traditional international calls. Various call plans are available in the internet telephony segment. One can choose the plan that is most suitable for the needs of users. Business entities especially with global presence have opted for advanced telecommunication to lower down their calling cost, as business demands frequent and regular networking with their customers and employees. On that front, the IP technology has made this a viable proposition. The voice over IP technology boasts of voice quality. As a matter, voice sound reception is secured, as internet telephony solution is based on the packet switching technique, wherein calls are routed over the internet. Unlike circuit switching technique, voice reception is clear and free of all disturbances which are a regular feature with phone lines. With Voice over IP technology long distance calls are made free or at minimum charges, if the person on the other side is using the same audio equipment. In the high-tech Internet technique, bandwidth governs the quality of the voice heard. As a matter of fact, when the bandwidth is higher, one can get better sound quality. The voice data is passed even when there is an apparent network congestion or disturbance. The VoIP service is up loaded just like any other common software application. The internet telephony works on power unlike the traditional telephone PSTN services which work independent of the power connection. Moreover, one of the most astonishing feature of this VoIP technology is that the telephone number can be accessed from any part of the globe, merely by having the VoIP converter. The voice mail messages can be listened with the help of online method. In order to keep track of the incoming and out bound telephone calls it is possible to utilise the call log option available on the VoIP . These logs are periodically renewed so that users can keep tabs on the number of calls made and also the time it was made or received. However the system has to be upgraded in regular intervals in order to keep the functioning of VoIP smooth. The VoIP service providers, wholesalers and resellers are big players operating in this internet telephony industry. The VoIP providers are business entities who offer a wide range of IP services to their clients. There clients may be either wholesalers, resellers or end users. As a matter of fact, the demand for VoIP services is increasing with each passing day, and there exists a tough competition in the IP market . Therefore, it won’t be wrong to say that in the global VoIP market, there are millions of VoIP service providers offering a wide range of value-added services. The additional services cater to the evolving needs and requirements of small and medium business users. Apart from its inherent features including cost efficiency and improved productivity, these services come with other telephony features. Among the vital features some of them are caller ID, call waiting facility, redialling, three way calling and voice mail. To conclude, it can be said that the VoIP services are successfully ruling the years old PSTN market with its high-end services and products. With the advanced internet telephony solutions, the business entities can enjoy more profits as they lower down the calling cost and increases the productivity.