PLANET VIP-281GS This is a 2-Port VoIP GSM Gateway (1*FXS + 1*GSM + 1* PSTN) - SIP/H323 Dual Protocol which is equipped with both FXS and PSTN interfaces and can be installed on a PBX trunk line to enrich its trunks. With it's built-in PPPoE / DHCP / DDNS clients and up to 2 concurrent connections and provides voice channels status display and optimized packet voice streaming over managed and public (Internet) IP networks.
Built-in adaptive buffer that helps to smooth out the variations of delay (jitter) in voice traffic
Voice channels status display: This function displays each port status such as on-hook, off-hook, calling number, talk duration, codec
Network Features
Point-to-Point Protocol over Ethernet (PPPoE) Client Support:
The router has a built-in PPPoE client for establishing a DSL link connection with the ISP. There is no need to install a further PPPoE driver on computers.
DDNS (Dynamic Domain Name Server)
DDNS is a service that maps Internet domain names to IP addresses. It allows you to provide Internet users with a domain name (instead of an IP Address)to access Virtual Servers.
NAT Traversal
The NAT traversal allows gateway to operate behind any NAT / Firewall device. There is no need to change any configuration of NAT / Firewall like setting virtual server.
