PorTech Communications Inc. PORTech is the original manufacturer in Taiwan with 30 years; therefore we’ll do our best to offer the best service and support. PORTech offer
E1 /T1 GSM Channel bank
VoIP GSM Channel bank
1/2/4/8/16/32 Ports VoIP GSM Gateway... Member since 6 October, 2009, Taiwan - Taichung
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