... 1.Support GSM900M/1800M/850M/1900M 2.With PSTN network, and switch the GSM and PSTN freely. 3.Supporting SMS function ... divided into sixteen category, including wireless telephone, GSM terminal, wireless network card, PBX related to GSM, CDMA, TD-SCDM, WCDMA. ... Now, our corporation gains twelve patent and succeed in passing ISO 9001, CE, ROSH etc. 2.4G GSM fixed wireless phone ...