We have the abilities and qualification for undertaking big-sized long-distance mainline optical cable laying, connecting and mobile communication equipment installation; SDH optical transmission, WDM（Wavelength Division Multiplexing）system, digital microwave communication, SPC exchange, No.7 signal instruction, optical network access, PAS, ADSL, DDN, packet switching, ATM equipment installation and test; power supply engineering for big projects; intelligent building system integration; and long-distance, city and rural telephone network engineering, pipe work, etc. We are also able to conduct related communication engineering design, prepare budget estimate and budget, provide technology consultancy, technical instruction and equipment supply for communication projects. It requires us to pay attention to a rational deployment of resources. We have invested a large amount of funds to upgrade and purchase construction devices and testing instruments. It has improved our equipment for construction and production, monitor and control and logistic management. These devices, instruments and equipment ensure the development of our new businesses and satisfy the needs of various big-scale constructions.