Cloud/web based audio recorder

Looking to have a Website/Cloud service built to run on Amazon S3 The site will require at minimum: - A database for user management - A database for device management (track by MAC address only and associated with a user(s)) - A database for Message management - A table for "groups" where users can be invited to the "group" The application is truly relatively simple, but has multiple layers. The purpose of the site / application is to take an inbound 'data stream' in this case, audio - could be either a VoiP or RTP audio stream and "record" the audio to the central site. A user would first setup their own personal account, and then add/register a device to their account based on a MAC id of the source audio file. In it's simplest form, the server could wait to hear a stream and record it to that users account based on MAC id. Some mechanism to name a stream should be allowed. The user should be able to 'invite' others to listen to a recorded audio stream. Similar to how dropbox does it where a direct link URL links them to that specific file or folder. This is Phase I of a bigger project. The successful implementation of Phase I will most likely guarantee you a second phase to this project. Please send any questions regarding the project.