9 [ Post and telecommunication equipment, namely, copper cables, foam-skin insulated telephone cables, data transmission cables, trunk cable, coaxial cables, control cables, copper drop wire for connecting customer equipment to the central office; terminals namely, telephones, multi-functional telephones, digital cordless telephones, cardphone telephones; connection equipment and accessories, namely, cable cabinet for the distribution of main telephone cable to the subscriber box, subscriber distribution boxes, cable closures, main distribution frame linking the switching system to the subscriber cable network, and protects the exchange from over voltage of over current by outside plant, optical distribution frame used for final termination or distribution of optical fibers; connection block, namely, vertical block and horizontal block used for connecting cable pairs from exchanges; accessories for optical cable distribution network, namely, optical distribution box, optical cable closures; power supply equipment, namely, power supply system comprised of different independent electrical power supplies, independent electrical power supply supplying stable electrical energy for telecommunication equipment, photovoltaic solar cells; lightning protection equipment, namely, direct strike lightning protection actively capturing lightning strikes to earth, large protection area, easy and simple installation, protection lightning transferring on power line protecting equipment from lightning transferring through power line, shunting out all lightning surges, very short reaction time, data line lightning protection preventing the damages caused by lightning against the equipment, feeder line (used to connect outdoor antenna to indoor telecom equipment) lightning protection, subscriber lightning protector used for protecting terminal equipment such as telephone, fax machines, and modems when lightning or abnormal voltages induce on the line, lightning protector for computer networks used for protecting local area networks (LANs), lightning protector for connection module used for protecting cables and connectors from abnormal voltage and lightning; software for billing customer support system used for billing for various other fields in telecommunications, software for cable network management system CABMAN/GIS (Cable Network Management System - CABMAN/GIS) specialized in management of telecommunications map information system applying in various other sectors such as geodesy and telecommunications, Code Open System Application software used for enterprise network operators and Internet service providers to offer services such as mail, web hosting, domain name server, and file transferring, software for education information system providing clients with various education information-related services through public switched telephone network and Internet, namely, information about student recruitment, information exchange between school and student's family, software for information and application gateway (infogate) used for services using combination of telecommunication technology (mobile and fixed networks), computer technology and data processing technology, multimedia communication server, security software comprised of fingerprint recognition technology used in various fields such as telecommunications, banking, police and army for controlling access to network and workstation using biometric methodology, controlling access to applications using biometric methodology, centrally managing user network and user's access permission system, information management system software used for system expansion, system administration, system information update, information content censor, security, software for vulnerability scanning and detecting system comprised of operating system, web server, mail server, ftp server, telnet server, and gopher software for organizing and displaying files on Internet servers, software for Internet based training in the field of university entrance examination training tutorial services, customer relationship management software used for keeping customers information as well as their relations with the enterprise, storing contracts signed between the enterprise and the customers, managing users according to their role in the system, reporting on contacts with customer and relation expansion, communicating between the marketing staff and the management group of the company, making statistical analysis reports on market and customer situation, on-line information network software providing current news, highly-interactive forums, specialized references for specific issues, events, digital IT, football, culture, and the like, on-line in Internet, VASC Webmail used for providing a large array of features such as reading, composing and sending emails via different computers with various attached utilities; postal equipment, namely, postage meters, electronic scales ]