@article{(Open Science Index):https://publications.waset.org/pdf/4447,
	  title     = {A Novel Approach to Avoid Billing Attack on VOIP System},
	  author    = {Narendra M. Shekokar and  Satish R. Devane},
	  country	= {},
	  institution	= {},
	  abstract     = {In a recent year usage of VoIP subscription has increased tremendously as compare to Public Switching Telephone System(PSTN). A VoIP subscriber would like to know the exact tariffs of the calls made using VoIP. As the usage increases, the rate of fraud is also increases, causing users complain about excess billing. This in turn hampers the growth of VoIP .This paper describe the common frauds and attack on VoIP based system and make an attempt to solve the billing attack by creating secured channel between caller and callee.
	    journal   = {International Journal of Computer and Information Engineering},
	  volume    = {4},
	  number    = {2},
	  year      = {2010},
	  pages     = {340 - 344},
	  ee        = {https://publications.waset.org/pdf/4447},
	  url   	= {https://publications.waset.org/vol/38},
	  bibsource = {https://publications.waset.org/},
	  issn  	= {eISSN: 1307-6892},
	  publisher = {World Academy of Science, Engineering and Technology},
	  index 	= {Open Science Index 38, 2010},