Construction of communication facilities

• data transmission networks;
• office automatic telephone exchanges, including line facilities;
• networks, systems and structures of local telephone communication (linear and station structures of the local telephone network);
• networks, systems and structures of zone telecommunication (linear and station structures of zone telecommunication);
• networks, systems and structures of intercity telecommunication (linear and station structures of intercity telecommunication);
• networks, systems and structures of international telecommunications (linear and station structures of international telecommunications);
• networks, systems and structures of radio broadcasting (line and station structures of wire broadcasting);
• networks of distribution receiving systems for television and radio broadcasting;
• dispatcher communication networks, telemetry;
• networks, systems and structures of fixed radio communication;
• networks, systems and structures of land mobile radio communications;
• networks, systems and structures of personal radio calling (radio paging);
• networks, systems and structures of cellular telephone radio communication;
• networks, systems and structures of air-cable television;
• networks, systems and structures of satellite fixed and mobile communications;
• installation of local area networks (LAN) and structured cable networks (SCS);
• installation of mini-automatic telephone exchange;
• installation of intercoms;
• installation of loudspeaker and dispatch communication systems;
• device of deep grounding from copper-plated (galvanized) electrodes up to 30 m deep.