PT-90 98000A program-controlled telephone switch is based on the full market research and the accumulation of communication products in Fengtai Communication for many years. It fully absorbs the advantages of many digital switches at home and abroad, using embedded technology and modular design. And in accordance with the technical requirements of ITU-T Recommendations, using the most advanced FPGA technology, patch technology, development and production of a new generation of IPPBX multimedia exchange platform that truly meets the needs of users.