The CCIE certification recognizes the increased importance placed on IT professionals of today who are responsible for integrating the technology into underlying network architectures. Individuals who earn a CCIE certification can help create a telephony solution that is transparent, scalable, and manageable. Earning a CCIE certification validates a robust set of skills in implementing, operating, configuring, and troubleshooting a converged IP network. The certification content focuses on Cisco Systems CallManager, quality of service (QoS), gateways, gatekeepers, IP phones, voice applications, and utilities on Cisco routers and Cisco Catalyst switches.