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.
Infiniwiz offers VoIP Phone services to small businesses. Maximize your business with a product that is scalable, accelerates productivity and drives growth. VoIP by Infiniwiz answers the communication and sharing needs of your business.