Automated Taxi Dispatch System

Hi, I am looking for fully automated, low cost, android based taxi dispatch system. Below are the very high level requirements; - Multiple cab companies can register as admin for their company account and manage various roles and rights and customize the apps and interface (header image) per their company name - Admins can be cab booking system owners, fleet owners or even call center owners who are registered for their area of expertise and revenue sharing partners on the basis on whose service was used for cab booking - Internet enabled android app for field executives to register cabs for common pool - Customized web based API for admins for their websites - Windows based CMS for contact center that can be integrated to any asterisk based VOIP - Portable (android based) cab booking app for executives - All cabs equipped with internet based android tab within configurable range receive booking request and bid for booking - Cabs can bid only if they have sufficient credit and no expired documents - Google translate option for cabs to display on-screen content in native language - Integration with SMS gateway for driver and passenger confirmation - Back end accounts for commission collection from cabs and distribution with respective cab companies on basis of bookings - Daily, weekly, monthly, quarterly and yearly detailed analytics for all possible data for admins in their dashboard - Minimalistic layout design and minimal bandwidth usage structure. - Option to use open source, stable system is preferred. As this is a very high level view. Please scope in additional possibilities.