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System Scalability

Some VoIP equipment vendors discuss scalability in terms of the number of IP phone users or the expected number of calls. Others use the terms busy hour call completions (BHCC) and busy hour call attempts (BHCA). These terms represent the number of calls or call attempts that can be processed during the busiest hours of the day.

The UC Monitor components, particularly the collector, support a BHCA of 25,000. In laboratory testing, the collector handled a higher BHCA. The collector is designed to handle temporary situations where the volume of VoIP traffic is far greater than normal.