How Failover/Failback Function Works?

When network equipment is disconnected from the Internet, resulting in the disconnection of applications, the connection must be restored as soon as possible in order to minimize the risks of network loss and relevant losses. 

Failover/Failback Function from Billion

Users can select primary or secondary WAN interfaces based on the conditions of the usage environment. When the system detects that the primary WAN interface malfunctions and fails to connect, the secondary WAN interface will be used automatically instead to connect to the Internet (Failover) and maintain the connection. If the system detects that the malfunctioned primary WAN interface has been restored and can connect normally again, the connection will be switched from the secondary WAN interface back to the primary WAN interface automatically (Failback) and resume normal connection. In this way, the Internet connection can be kept stable.

Dual-SIM

In addition, using the Billion LTE Dual-SIM Router allows users to insert SIM cards from two different telecommunication companies. After the system boots up, it will first connect to the Internet using the SIM card in the SIM-1 slot. When the system detects that Internet connection is not possible with the SIM-1 card, it will use the SIM card in the SIM-2 slot for connection instead. The connection continues until the system discovers that Internet connection is not possible with the SIM-2 card. In this case, the SIM-1 card will be used again for Internet connection. This function is designed specifically for vehicles that travel to different regions. Since service qualities differ due to the network deployment by different telecommunication companies, this function can select the better telecom service to keep the Internet connection stable.

Billion M2M series – M120N Dual-SIM Wireless VPN Firewall Router

Reliable and Stable Internet Connection Quality to Ensure Normal Operations of Network Equipment and Applications

Provide a safe and stable network between SD-WAN (vCPE/uCPE) and corporate headquarters without losing connection

LTE Industrial/In-Vehicle Multi-Carrier Router

Billion M120N

The Billion M120N Advanced Industrial/In-Vehicle LTE Router is a high performance all-in-one fixed/mobile wireless communications platform with advanced software enabling high availability, reliable and secure connectivity for mission critical applications. The compact, rugged design integrates dual SIMs, four-port Gigabit Switch, Wi-Fi Access Point, embedded multi-GNSS receiver for GPS or GLONASS, and ignition sensing for in-vehicle applications. The M120N is specifically designed to support a wide range of applications in Smart Bus and M2M segments.