Telephone communication network

The patent of a a telephone system for or the single telephone line in the chamber of buildings improving (10), the system supporting the AC and easy to the multi-channel outwires. The existing telephone circuit served and local data communication network media, the outer multi-channel audio channels. Each lead-out wire (88a and 105a); one or more voice channel switch for adjusting telephone line interface. The low-frequency spectrum range is configured use and data communication network frame; the realising emergency line function, and special connector (91) with lead-out wire for providing to the frequency band accessing. External telephone feeder line (86a and 86b) is transformed the digital, formed in the interior and data communication network interface.