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.
Softech Dialer is one of the leading Voip dialer specializing in Internet Telephony Solutions for various businesses, Our vision is to emerge as a major VoIP Dialer by integrating telephony system with the contemporary online world.