By using Portech SBK-32 expander for 32 SIM-cards, you can increase the number of channels in the Portech MV-37X GSM VoIP gateway series using the Internet.
PT GERBANG DATA LINTAS BENUA was established in early 2000 and is a subsidiary company of the THP Group. The company is based in Jakarta, Indonesia and also operates an associate company domiciled in Melbourne, Australia.