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.
IntelePeer is a leading provider of SIP trunking carrying over 25 billion minutes of traffic annually. Our cloud communications services and SIP trunking make it easy for contact centers and enterprises to connect using IP communications.