The shift to voice over IP telephony from public switch telephony network has been a gradual one. In recent years though, it has gained momentum as industry and the residentials alike have started acknowledging its advantages. There was a need in the telecom industry for a technology that would allow inexpensive calls to local, long distance and international destinations. Communicating with one another on a social level and also networking is necessary for businesses. However, in the absence of an inexpensive mode of communication, corporates had no other option but to await the long phone bills at the end of every month. Recognising this need for a cost-effective and qualitative mode of communication, voice over Internet protocol telephony services was introduced. It is perhaps one of the biggest achievements of the telecom industry, which has completely changed the way communication was perceived. Cheap VoIP telephony services have been warmly accepted by everyone across the globe and all sectors of the industry.

VoIP Service providers offer top class quality of voice, one-stop business solution, voice over IP telephony services, wholesale carrier services and reseller programs. With thousand of service providers offering the same service, it becomes an arduous task to select the one that would prove to be advantageous to one's organisation. VoIP resellers and wholesaler carrier service providers should be extremely careful while opting for a particular provider for their business. Competitive rates is definitely one such criteria for analysing different providers of VoIP. However, since one is selling a service, the quality cannot be sacrificed. To ensure good voice quality, always test the routes by making a real live call. This will provide you with the true picture regarding the quality of service on sale. Moreover, a provider which has multiple POP's and servers also offers quality routes by cutting down the latency, thereby increasing the connectivity. Excellent quality would help keep your clients yours forever and also help to attract new clients.

On analysing the VoIP reviews, one common problem that is faced by many clients is if they face any technical problems with voice over IP telephony service, they have nowhere to look for help. Most of the service providers either don't provide support or don't bother to reply to the endless emails send by the frustrated client. In such a scenario, the client's business suffers a great deal. To avoid yourself from going through all this hardship and ensure smooth functioning of the organisation, it is highly recommended to work in tandem with a service provider who offers 24/7 support around the year via MSN chat and email.