It is also important to the incident response plan, including the alert process.If is much better to discover a gap in the plan during a practice run than when a real incident occurs. Regular practice helps identify the need for change in response to technological changes. For example, some organizations are switching from a traditional telephone system to one based on voice over IP (VoIP). This can save considerable money, but it also means that if the computer network goes down, so,too,does the phone system. This side effect may not be noticed until the incident response plan is practiced.