iTelBilling - A powerful, flexible and real time VoIP billing and monitoring software which let a VOIP operator run his business smoothly. Integrated with Origination, Termination/Wholesale and Call Shop modules on both postpaid as well as prepaid platform, iTelBilling has been able to meet the requirements of most of the VoIP operators. iTelBilling supports extensive monitoring report as well as Graphical monitoring report which makes it more appealing to ITSP.