CTV Installing DVR Software Installing or Net configuration and Web address configuration Access Control system Installing Access Control System Software Installing IP Camera Installing and Software Installing or Net configuration and Web address configuration. Panasonic Pabx telephone system Installing and programming. DSL HDSL ADSL and SDSL Modem or Router Configuring amp Maintenance and System LAN Connection or System’s hardware Installing ConfiguringQManagement System LAN Connection Video Audio System installation amp programming. Take care all the cable connection Cable repairing amp connecting with Switch Or Security System setup and Configuring. Established a lot of Local Area Network in small office