Product overview
the cisco 1921 builds on the best-in-class offering of the cisco 1841 integrated services routers. all cisco 1900series integrated services routers offer embedded hardware encryption acceleration, optional firewall, intrusionprevention, and advanced security services. in addition, the platforms support the industry's widest range of wiredand wireless connectivity options such as serial, t1/e1, xdsl, gigabit ethernet, and third-generation (3g)wireless (figure 1).