Modifying an Existing Network
to Support Voice over IP
The previous section discussed the issues surrounding a voice-capable network,
but an even more important issue exists: adapting an existing network infrastructure
to support VoIP solutions under the Cisco AVVID umbrella.This section will
extend the previous ideas into political decisions regarding how to modify an
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350 Chapter 10 • Designing and Implementing Single Site Solutions
existing network so it supports VoIP should the decision be made to go forward.
It must be understood that once this decision is made, most actions are neither
reversible nor stoppable without a loss of capital investment. Perhaps the only
action outside this rule would be an upgrade to the wiring infrastructure.