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.
With over 12 years of experience providing the most robust and scalable TDM to IP and IP to IP solutions, Bodenor S.A. understands the needs of the world''s most demanding wholesale service providers and enterprises.