Our company specialze in manufacturing PCM multiplexer, PDH multiplexer, SDH multiplexer, STM multiplexer, BBPCM30, RS232-V.35 converter, media converter etc
We are Tianjin Hengguang Technologies Co., Ltd located in Tianjin and specialized in developing and manufacturing telecommunication equipments such as PCM, PDH, SDH and other related products. Our....
compete telephone function, internal and external adapter, external line substitute call, forced insertion, hang-up urging , call quit , call monitor , internal and externalline reservation, PSTN, ....
Hengguang Technologies Co., Ltd., a reputed manufacturer founded in 1993, has been engaged in the innovation and manufacture of telecommunication products and engineering services. Hengguang' s....