A New Step on Transforming VoIP into the Ubiquitous Service Era

Over the coming years, operators will be using IP networks to replace their current PSTN. VoIP opens doors of opportunities such as cost saving and increased flexibility as well as for the uninvited users, viruses, worms and other unexpected threats from the network. In this paper, I have described benefits and threats that VoIP should face to get the leading place in providing the public phone service. By deploying a mobile wireless networking technology, we can step into the ubiquitous VoIP era. However, only talking about the service model and high technology challenges is not enough. More facets should be tackled like regulatory requirements.