The 4331 Integrated Services Router from Cisco offers a multicore CPU architecture running modular Cisco IOS XE Software that can be quickly adapted to the changing needs of your branch-office environment. It separates control, services, and data plans, providing application-aware network services while maintaining a stable platform and a high level of performance during periods of heavy network load. Additionally, the router is able to integrate application-aware services and scale performance without a complete equipment upgrade. The 4331 features encryption acceleration, voice- and video-capable architecture, application firewall, call processing, and embedded services. The platform supports a range of wired connectivity options, including T1/E1 and fiber Gigabit Ethernet.