In telecommunications, an audit is one of: The simplest audits consist of comparing current telecommunications billing and usage to the underlying rate structure whether that is dictated by contract, tariff, or price list.
Complex audits utilize software applications, direct bargaining with service providers and activity reports that include detail down to an individual employee's usage.
Audits may focus on mobile phones and devices, Internet service or land line telephony, or they may encompass all three.
Internal Audit: A business accounting department will generally only conduct a telecom bill review in the months that trigger a red flag due to the sudden spike in the expense of a communications service.
This is usually contained to the one telecom service provider who triggered the red flag and the rest of the invoices are left unexamined because they fall within the considered norm of a small monthly cost increase.