Calling card business is one of the evergreen businesses in the VoIP industry. The PIN-less dialing and callback services have always been in demand. To run a calling card business, it is very important to manage all entities accurately and keep the billing process fast and accurate. At iNextrix, we provide a comprehensive Calling Card Solution to empower the calling card service providers with a widespread feature range. All actions, including bulk updates, can be done with a few clicks in a GUI based web panel, which can be accessed from anywhere, at anytime. Our Calling Card Solution also supports reseller module to strengthen calling card businesses with affiliation and partnership.