As mentioned earlier in this chapter, the hardest problems to resolve in a VoIP deployment relate to call quality and reliability. Many problems in these categories can be avoided by using a staged deployment, QoS, and careful tuning. This chapter has provided many QoS and tuning recommendations to help you get your VoIP deployment up and running with good call quality. After a VoIP deployment is up and running well, it becomes your job to keep the call quality and reliability high. Thorough, ongoing VoIP management is the key to keeping a successful VoIP deployment successful.
Chapter 6 covers the core components of a comprehensive VoIP management infrastructure, the parts of the network that need to be managed and monitored, maintaining call quality, and optimizing server performance and availability.