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.
Mymplus VOIP is the next generation VOIP. Headed by Mr. Lance Lomako CEO of Momentum Plus Inc. The company deploys state of the art VOIP IPBX systems for Small and Medium sized companies