... .Support GSM900M/1800M/850M/1900M 2.With PSTN network, and switch the GSM and PSTN freely. 3.Supporting SMS function. Basic ... /1900M digital mobile communication network.2. Support PSTN network, and switch the GSM and PSTN freely .3. SMS function.4. 32 ... products which can be divided into sixteen category, including wireless telephone, GSM terminal, wireless network card, PBX related to GSM, CDMA, TD ...