Using FREEPBX and Sugar CRM, have to create a growing PBX from multiple remote servers that have to 'interlink'. Will have upwards of 1000 extensions when fully operational. All extensions can call each other. In bound calls are to be filtered according to the geographic location of inbound UK only callers. Each extension user is to be billed separately for their outgoing calls. This project is likely to be an ongoing work in progress and could offer a continuity of work on a near daily basis of 1 or 2 hours. Please quote for the project and/or the ongoing management/expansion of the system.