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The GSM/CDMA all-weather wireless phones are providing a reliable and effective communications terminal when it is limited or no infrastructure can often be costly and time-consuming, they usually are fully contained in a composite waterproof housing with a handset or hands-free design, resulting in high reliability of the product long MTBF.

Additionally, these GSM telephones are fully programmable, remotely via SMS, designed to be shipped complete to site ready to operate, with the only requirement being the insertion of an appropriate network SIM card, perfect for many applications where an economical and reliable solution is required. 

Our GSM core module supports quad-band GSM / GPRS, its working frequency band is: GSM850MHz, GSM900MHz, DCS1800MHz and PCS1900MHz can be compatible with all countries of the mobile network. they embedded TCP, UDP, FTP, PPP and other protocols, according to the customer requirements custom background management system. 

PSST focused on the communication needs of the world's industrial markets.we produce water resistant cordless phone and weather resistant telephone.We welcome merchants from all over the world to cooperate with our factory for mutual benefit and win-win, and jointly create a better future.