VoIP GSM Gateway - HG-4000 Series

VoIP GSM Gateway Series supports up to 72 VoIP GSM ports, and provides superior voice technology for connecting legacy PBX systems with IP networks, and new IP-based PBX and devices with Cellular networks.

The VoIP GSM Gateway - HG-4000 series enables inbound and outbound VoIP and Cellular calls - all in one compact box. Given the systems' flexibility, modularity and scalability, the VoIP GSM Gateway - HG-4000 can be pre-configured to meet precise customer requirements. Companies can easily expand the cost-effective systems to meet their evolving telephony needs over time, and establish telephony connectivity between the company and its branches.
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Main Features:

*From 12 to 72 Cellular ports
*Up to 288 SIM Cards
*3G, GSM and CDMA networks
*Advanced LCR & Routing Groups
*IP address & DDI pattern restrictions
*USSD pre-paid SIM cards Top-Up support
*GSM worldwide use (850/1900 or 900/1800)
*Integrated antennas combiner
*WEB management and control
*Embedded VoIP (no need for any external VoIP GW (Cisco, Qunintum and others)
*High quality of voice
*Inbound and Outbound calls
*Redundant power supply - Ready
*Fast and easy installation

Source : http://www.hyperms.com/