iSurfJanus is a next-generation of multi-WAN IP service gateway with Cell's proprietary Custom Real-time Intelligent Operation System (CRiOS) and unique Intelligent Packet Processing Engine (IPPE) developed and embedded into an appliance system. It provides sophificiated capabilities of link dynamic load balancing with inbound and outbound, stateful firewall, intelligent NAT (iNAT) and intelligent routing capability, QoS (Quality of Service), link monitoring and automatic failover that keep business connected even during link failure and support triple-play services at a quality level for enterprises and service providers. Cell Janus supports continued access to hosted servers by using an integrated DNS Server to direct inbound traffic through the backup link. It supports augmented bandwidth services by including dynamic session-based WAN load balancing for both inbound and outbound IP traffic. It supports multiples of WAN links that have different bandwidth capabilities and asymmetrical upstream and downstream bandwidth.