When someone says "telecom audit," they mean one of two very different things. The first is what a CFO does once a year when she stares at the invoice total and asks her team whether the number seems right. The second is a formal, structured review by an independent advisor who compares every line item on every invoice against the original contract, the current market, and the actual inventory of services. Only the second kind actually finds anything. This guide is about that one.
What a telecom audit actually is
A telecom audit is a structured review that answers four specific questions. First: what are you actually paying for? Second: what are you actually using? Third: is the pricing fair relative to the current market? Fourth: are there contract errors, stranded services, billing mistakes, or sub-optimal configurations that can be corrected for savings without any disruption? A good audit produces a written report that answers each of those questions with numbers.
What a telecom audit covers
A full audit covers every category of telecom and technology spend a business has. That typically includes:
- Voice services: POTS lines, SIP trunks, hosted voice, UCaaS seats, toll-free numbers, long-distance, and international calling plans.
- Data and connectivity: dedicated internet, broadband, MPLS, SD-WAN, private point-to-point circuits, fixed wireless, and LTE/5G backup.
- Mobility: cellular lines, data plans, device protection, and telecom expense management platforms.
- Contact center and collaboration: CCaaS seats, call recording, workforce management, video conferencing, and collaboration tools.
- Cloud and managed services: colocation, IaaS, managed security services, and any carrier-billed managed offerings.
- Cabling and inside wiring: landlord-billed MDU/MTU fees, inside wire maintenance charges, and other facilities-side costs that hide on telecom invoices.
What a telecom audit typically finds
Across hundreds of audits we've run, the findings fall into a predictable pattern. Here's what mid-market businesses usually discover in the first audit:
- Stranded services. Lines, circuits, and seats the business is still paying for but no longer using. A common culprit: disconnected offices where the services were never formally cancelled.
- Billing errors. Simple math mistakes, double-billed services, taxes calculated on the wrong base, or pricing that doesn't match what the contract says. Billing errors affect somewhere between 60% and 80% of mid-market invoices in any given month.
- Above-market pricing. Services the business is paying 30%, 50%, or more above current market rates for, usually because the contract is old and was never re-quoted.
- Evergreen rollovers. Contracts that silently auto-renewed into another multi-year term at the old price without the business knowing.
- Over-subscription. Bandwidth, seat counts, or feature bundles that are materially larger than the business actually needs.
- Feature misconfigurations. UCaaS or contact center deployments where expensive add-on features are enabled but no one is using them.
On a typical first audit for a mid-market business, we recover 15–30% of total telecom spend. For businesses that haven't been audited in five or more years, 40% is not uncommon. For businesses in the middle of rapid growth or recent M&A, the savings are almost always larger because complexity hides waste.
How long a telecom audit takes
For a typical mid-market business — say 5 to 50 locations, a couple hundred users, a mix of voice and data services — a full audit takes about two weeks from the day we get the invoices and sign a letter of agency. Larger multi-site businesses with 100+ locations can run three to five weeks. The majority of that time is spent waiting on carriers to produce contract copies and circuit records, not on the analysis itself. The work is mostly invisible to the client — once you send us the invoices, you can go back to running your business.
What a telecom audit should cost
A reputable broker-led telecom audit should cost you nothing. That's not a promotional claim — it's how the broker model works. The carriers pay the broker a commission on any services that end up being placed or renegotiated, and the audit is the front end of that engagement. If a firm is asking you to pay hourly or a flat fee for a telecom audit and also wants to place business on your behalf, ask why. Fee-for-service audits do exist, usually from specialized consulting firms that explicitly refuse to take carrier commissions, and they can make sense at very large enterprise scale. For most mid-market businesses, the broker model is the right fit.
How often you should audit
Every two years is the right cadence for most businesses. The market moves fast enough that pricing can drift materially above fair in 24 months, and contracts for core services (voice, SD-WAN, dedicated internet) are usually 24 to 36 months long, so the audit cadence and the contract renewal cadence line up naturally. Businesses that are growing, opening new locations, or going through M&A should audit annually — complexity compounds, and so does waste.
Every new ITG client starts with a free audit. We collect 90 days of carrier invoices, sign a letter of agency, and produce a written findings report within two weeks. The report shows what we found, how much we can recover, and what our recommendation is. If the answer is "you're getting a fair deal, stay where you are," we'll tell you that too. No pressure to switch anything.
Ready for a Free Audit?
Forward a recent carrier invoice and we'll give you a quick read within two business days on whether a full audit is likely to find meaningful savings. If it is, we'll schedule the full two-week review at no cost. If it isn't, we'll tell you that and you can go back to your day.
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