Telecom Audits: What You're Probably Overpaying For
I've sat across the table from facility managers, IT directors, and CFOs who thought their telecom spend was under control. Then we pulled the invoices. Almost every time, we found 15 to 30 percent in waste they'd been carrying for years — sometimes longer. Not because anyone was careless, but because telecom billing is designed to be opaque, and nobody has time to dissect 40-page carrier invoices every month.
That's what a telecom audit does. And if you haven't done one recently, there's money sitting on the table.
What a Telecom Audit Actually Uncovers
A proper telecom audit isn't a spreadsheet exercise. It's a line-by-line reconciliation of what you're being billed against what you're actually using — and what you actually need. Here's what turns up, nearly every time.
Ghost Lines and Zombie Circuits
This is the most common finding, and usually the most expensive. A ghost line is a phone number or circuit you're still paying for but nobody's using. Maybe it belonged to a conference room that got converted into an office two years ago. Maybe it was a fax line from an acquisition that nobody shut down. Whatever the backstory, the carrier keeps billing.
We recently audited a 40-location property management group and found 23 analog lines still active for elevator phones that had already been migrated to cellular — at $65 per line, per month. That's $17,940 a year in pure waste. Nobody caught it because the invoices were buried in a 60-page consolidated bill.
Double Billing and Billing Errors
Carrier billing systems are complex, and mistakes happen. More often than you'd think. Common errors include being billed for the same circuit under two different account codes, incorrect taxes and surcharges, or promotional rates that expired without anyone flagging the jump to standard pricing. I've seen a single location billed twice for the same fiber circuit for 14 months before an audit caught it. The carrier refunded the overage, but they won't proactively tell you about it.
Mismatched Service Tiers
This one is subtle but pervasive. You're paying for 500 Mbps dedicated fiber at a site that never pushes more than 80 Mbps of traffic. Or you're on a metered SIP trunk plan with burst pricing when a flat-rate plan would cut the bill in half. Carriers sell you the tier that made sense when the contract was signed — five years ago, maybe. Usage patterns change. The contract doesn't adjust itself.
Contract Terms You're Not Using
Many enterprise telecom contracts bundle features and services that sounded good during negotiation but never got deployed. Managed router services nobody configured. SD-WAN licenses that sat in a portal. International calling blocks on lines that only make domestic calls. If you're not using it, you shouldn't be paying for it — but nobody's checking.
Why Now Is the Right Time
Three things make this the ideal moment for a telecom audit.
First, carrier pricing has shifted dramatically. Fiber internet costs have dropped significantly over the past three years, yet most businesses are still locked into contracts negotiated at higher rates. An audit gives you the data to renegotiate or switch providers with confidence.
Second, the copper sunset is accelerating. As carriers phase out POTS lines and legacy T1 circuits, you need a clear inventory of what you have, what it costs, and what the migration path looks like. An audit is step one of that process.
Third, multi-site organizations that grew through acquisition often have telecom environments stitched together from different carriers, different contract cycles, and different technology eras. An audit normalizes that chaos into a single, actionable picture.
How to Get Started
You don't need a team of telecom analysts to start. Begin by collecting the last three months of invoices — every carrier, every location. Look for line items you don't recognize. Flag any service that costs more than $200 a month and ask someone: Is this still in use? That simple triage alone often surfaces five figures in savings.
For a deeper audit, you need someone who knows what carrier invoices should look like — what the taxes and surcharges ought to be, what competitive pricing looks like in your markets, and where the industry is headed. That's the difference between finding the obvious waste and finding everything.
If you haven't audited your telecom environment in the last 18 months, you're almost certainly leaving money with the carriers. Let's have a conversation about what that number looks like.
Carter Dewey
Carter Dewey leads solution architecture at TrustedNetworx, helping multi-site organizations navigate telecom modernization, POTS replacement, and AI-powered operations. With deep experience across property management, senior living, hospitality, and healthcare, Carter translates complex infrastructure challenges into practical, phased migration roadmaps.