Build a Website for Service Call Management

We have a Service business and we would like to bring it on our website where service calls are registered , tracked and closed and consumer/user/customer is able to track the call status online either through website,sms or a mobile application Some of the roles in this business Users - ALL Consumers / users of website -Can register and track their call Service Providers - Based on the type of service, Service Providers can be registered with information and some documents attachment Technitians - Can track call and can close Admin - Can Monitor the call using a dashboard Backend Team - Can register , assign , un assign ,change, modify , delete the calls . Finance Team - Can manage the receivables and payable and can see related reports Highlevel details Good looking Home Page depicting the purpose of the website User can register himself using g+, fb,linked in or website controlled login User can put service request (place a call) by either by loggin in or without login , by providing some details like City , Type of Service , Mobile number, email address etc Upon placing the call , users gets a unique number through sms and email . Backend team can assign this call to Partners's Technitians based on his availability with time details etc Upon Assignment the user is informed about the service timing Technitians after resolution can close the call. Various Report / dashboard access to various roles. We should be able to add cities We should be able to add Services in various cities we should be able to add Service Partners in various cities We should be able to add Technitians for Partners We should be able to create roles and attach activities to roles . Access should be role based Log of all critical transactions required Site should be configurable as and where required . No hard coding UI has to be web responsive and fast loading , HTML5,CSS,JS ,Java to be used Database MySQL Home Page can have information like Contacts, About and other company information All designing work like images etc to be done by you Service Providers should be able to pay for the call that they have been assigned to from website.