Provide Secure Unified Communications With Cisco IOS Firewall Session Initiation Protocol

Many organizations have discovered that unified communications - the convergence of data, voice, and video onto a single network infrastructure - can enhance employee productivity and mobility, while dramatically reducing communications costs. What is crucial to attaining these advantages is securing unified communications systems to maintain service availability and system integrity. To increase protection, Cisco recommends an approach in which multiple layers of security are integrated throughout Cisco Unified Communications applications and systems. The four primary components of a unified communications system include the endpoints; call control; applications; and, perhaps most critically, the converged IP network infrastructure. Cisco router-based security solutions provide a solid foundation toward building a secure unified communications architecture that can secure each of these four critical components.