Asterisk/A2Billing project

Your task will be to install the the open source PBX Asterisk and A2Billing on my dedicated server and add a frontend / web interface (you can choose the web interface, it should be open source or free). The dedicated server: OS: Fedora Core 6 250 GB hdd Dual Xeon 2.6 2Gb RAM I need the following features working in Asterisk and I need to be able to change them easily via the web frontend: Also configure SMS callback using the web callback in A2Billing infomation. Configure A2Billing to set the maxinum number of minutes for inbound and outbound DID calls. Edit the A2Billing software with bug fixes. Connect my server with [login to view URL] * All the basic functions like incomming and outgoing calls. * IVR creation system * Queues management * Policies system for users/groups management * LCR (Least Cost Routing) * Call Transfer * Call Waiting * Caller ID * Call forwarding * Conference rooms / Conference calls * Music On Hold * Music On Transfer * Voicemail / Voicemail to email (+ 1 or 2 other little features perhaps) Remember that some of these features are on A2Billing. Protocols: * SIP * IAX (if possible) You will also need to assist me with the mentioned features of the web fronted so that I can use them and set them up. SUMMARY: You get a blank dedicated server with Fedora installed and need to install Asterisk as well as a web frontend for Asterisk (which you can choose). Then you need to make sure that my SIP account works with the installation and that all requested features work. Good communication is essential!