The PLANET VIP-281GS VoIP GSM Gateway is a signal-GSM channel gateway that supports SIP and H.323 VoIP protocol at the same time. The VIP-281GS provides a total solution for integrating voice-data network and the Global System for Mobile Communications (GSM).

The VIP-281GS is equipped with both FXS and PSTN interfaces, which gives the gateway a wide range of potential applications. The VIP-281GS can be installed on a PBX trunk line to enrich its trunks-GSM and VoIP routes. The PBX is able to have voice communication to either VoIP or GSM environment by the least costs.
Meanwhile, the VIP-281GS is designed for comfort, ease-of-use with a sophisticated and satisfaction to customers. The VIP-281GS not only inherits traditions of quality voice communications and network data over IP networks but the VIP-281GS also eliminates the human resource of VoIP network deployment. With optimized H.323 / SIP architecture, the VIP-281SG is the ideal choices for P2P voice chat and ITSP cost-saving solution, but also provides network-converting feature to translate the packet network into traditional PBX system.
With built-in PPPoE / DHCP / DDNS clients, up to 2 concurrent connections in VIP-281GS, voice communications can be established from anywhere around the world. The VIP-281GS comes with intuitive user-friendly and powerful management interface (web / telnet), that can dramatically reduce IT personnel resource and complete GSM / VoIP deployment in a short time. Plus remote management capability, administrators can monitor machine / network status or proceed maintenance / trouble-shooting service via Internet browser or telnet session. Besides, it provides voice channels status display and optimized packet voice streaming over managed and public (Internet) IP networks.