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.
Cypher 7 is an international telecom carrier serving the world`s largest telecom operators. Using our proprietary VoIP technology we implement our own direct telecom routes as well as providing and maintaining routes for our partners across the globe.
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.
