Don't use your bills to collect call data for your traffic study. They'll only show the calls you paid for, not the calls that got a busy signal, says Lee, a former MCI traffic engineer. You might be able to leverage your on-premise or hosted call accounting system to collect the raw data to run a traffic study, Laino says. Contact your call accounting vendor to sec whether the system can be set up to report on the usage of outside lines. You also can request reports from your carrier's switch, Yonemoto recommends. But note that carriers might refer to an "incoming" call as one placed from your enterprise, though your inclination might be to think of an incoming call as one your enterprise receives.
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