longhua, ShenZhen, Guang Dong, China

Shenzhen Telestar communication TEC. Co., Ltd. Founded in 2001, is a high-tech corporation professionally engaged in specialized researching and manufacturing GSM 900MHZ/1800MHZ/1900Mhz, PHS, CDMA450M...

shiang-shung north, taichung, Taiwan

PORTech is the original manufacturer in Taiwan with 34 years, therefore we&＃039;ll do our best to offer the best service and support. PORTech offer E1 /T1 GSM Channel bank VoIP GSM Channel ban...