A telecom audit is an analysis of a company's telecommunications expenditures like local service, long distance, data, internet, wireless, and conferencing. The audit identifies billing errors and overcharges, which commonly amount to 15-25% of annual telecom spend. Conducting an audit can secure credits and refunds while reducing ongoing service costs. Tri-Solve is an expert auditing firm that identifies savings through audits without requiring changes to service providers. Their process involves analyzing bills at their office and presenting results with minimal client involvement.