Technical Writing For an IP Telephone system using FREEPBX

Industry: Internet/Software Topic: IP Telephone System Technical Document Tone: Formal/Professional Outline & Structure: Hi, I am looking for an engineer who has experience in writing a technical document about FREEPBX system and its high availability setup. . System Technical Documentation (Low-Level Documentation) detailed design, individual modules identified in the designed, specifications of the items (server/system setup information, server spec, firmware/release system is using, the hardening being applied, extension, DDI, etc...) Administrator/User instructions Operating instructions System Maintenance/Servicing instructions Installation manuals Software manuals 3. System Acceptance Test Documentation 4. User Acceptance Test Documentation Extensive research needed: yes Extra notes: