The Cisco Fourth-Generation Network Interface Modules provide improved wireless WAN primary and backup solutions. They ensure persistent, reliable LTE connectivity with fallback and transparent handoff to earlier technologies. They enable high-performance, secure, reliable, and transparent multimedia applications anywhere and anytime and allow customers to deploy and manage the same device for multiple applications, simplifying deployment and management. For businesses requiring rapid setup or temporary connectivity, they offer the capability to deploy a site quickly. These modules provide resilient WAN access, which is a crucial requirement for branch offices connecting to a corporate site or the Internet.