IT knows which services are running. Finance knows what's being paid. Procurement holds the contracts. But none of those three teams has the complete picture — and the data they each hold rarely lines up.
The result: invoices get approved that shouldn't. Services stay active after they've been decommissioned. Charges creep above contracted rates, billing cycle after billing cycle, and nobody catches it because catching it would require matching data that lives in three different systems, owned by three different teams, none of them with accountability for the full picture.
Telecom and network spend is where this shows up most visibly. Carrier invoices are fragmented, formatted differently by every provider, and complex enough that validating them manually is impractical at any scale. Add multi-site operations, multiple carriers, and a mix of legacy and modern services, and financial leakage becomes structural — not occasional.
Telecom expense management (TEM) is the discipline that addresses this. This article explains what it involves, why it matters to both IT and finance, and what the difference is between managing it in-house and deploying a managed service.
TEM covers the processes, tools, and services an organization uses to manage, audit, and optimize its telecommunications and network spending. In practice, that means:
The scope has expanded significantly over the past decade. What began as fixed-line invoice management now routinely includes mobile, data circuits, SD-WAN, unified communications platforms, and in many programs, broader technology and SaaS spend. The term "technology expense management" reflects this broader remit and is increasingly used interchangeably.
Carrier billing systems are complex, and errors are common. Contracted discounts fail to apply when contracts renew. New services are provisioned but billed at list rates rather than negotiated rates. Taxes and surcharges are misapplied or duplicated. PwC research documents that organizations typically lose 3–8% of revenue to billing errors and reconciliation gaps — direct EBITDA erosion that no standard report surfaces, because the data needed to detect it sits across systems that don't talk to each other.
A TEM program with monthly invoice auditing catches these discrepancies before payment and pursues credits where charges have already been applied. Sophia FinOps clients typically recover 3–8% of their technology spend through this process.
Every enterprise has them: circuits disconnected when an office moved, phone lines belonging to employees who left years ago, services cancelled in the IT system but never formally disconnected with the carrier. These "zombie services" sit in carrier billing systems generating recurring charges because nothing connected the operational change to the billing record.
Finding them systematically requires maintaining an accurate, current inventory and auditing it against what's actually being billed. Without that, individual instances get caught occasionally, but the pattern continues.
Telecom contracts are typically multi-year. When they expire without active renegotiation, they often auto-renew on terms that were competitive when they were signed but have drifted against market rates in the intervening years. Finance teams rarely have visibility into when carrier contracts are due for renewal, and IT teams rarely have the market intelligence to know whether the rates on offer are appropriate. The result is another multi-year commitment at a rate that could have been renegotiated with six months' notice.
Enterprise finance teams need telecom spend allocated to the right cost centers to budget accurately and hold business units accountable for their consumption. When invoices arrive from multiple carriers in different formats without standardized cost center coding, that allocation either doesn't happen or requires significant manual effort every month.
Telecom expense management crosses three organizational functions that rarely share systems or meet regularly: IT manages service delivery — provisioning, changes, decommissions. Finance manages payment — invoice receipt, approval, AP processing. Procurement manages contracts — negotiations, renewals, rate agreements.
When IT decommissions a service, finance doesn't automatically know to stop paying for it. When procurement negotiates a new rate, that rate rarely gets reflected in the validation rules finance uses to approve invoices. When finance flags an unusual charge, neither IT nor procurement may have the context to respond quickly.
TEM — done properly — functions as the connective layer between these teams. It centralizes the inventory, contract, and billing data that each holds in isolation, creating a single source of truth that all three can act from.
Software-only platforms give the IT or finance team a tool to centralize invoices, manage inventory, and run reports. The team still does the work — validating invoices, filing disputes, tracking contracts, responding to exceptions. This works well when there are experienced people available who understand carrier billing and have time to run the program. Most large enterprises do not have that combination.
Managed TEM means a service provider handles the operational work: collecting invoices, running audits, filing disputes, maintaining inventory, and managing renewals on the client's behalf. The IT and finance teams retain visibility and decision-making authority; the provider handles execution.
Managed services account for 42.6% of the TEM delivery market in 2025 — the largest single segment, according to Future Market Insights — reflecting that most enterprises prefer to hand off the operational burden rather than build internal capacity. Whether a software-only or managed approach fits depends on how much internal expertise and bandwidth exists to run the program consistently.
Periodic sampling leaves gaps. Discrepancies outside the sample go undetected for multiple billing cycles. Look for a service that audits every invoice against contracted rates every month — systematically, not by exception.
The managed TEM provider should have no commercial relationship with any carrier that creates an incentive to overlook discrepancies or steer contract decisions. A carrier-neutral model means the provider's interest aligns with the client's: find the errors, file the disputes, recover the spend.
Inventory updated quarterly does not support accurate billing validation. Services change continuously — new sites, decommissioned locations, workforce changes. The inventory needs to reflect the current state of the environment to catch billing that doesn't match it.
The platform needs to be usable by IT, finance, and procurement — each with appropriate access to the data relevant to their function. A solution that lives only in IT or only in finance replicates the siloed problem it's meant to solve.
A managed TEM engagement that takes twelve months to go live is not delivering value. Sophia FinOps reaches production within 8–12 weeks — at which point invoice processing, auditing, and exception management are running. An Implementation Manager leads the setup: gathering invoices, carrier data, and contracts; configuring services, cost centers, and approval rules; and managing the process from onboarding to live invoicing.
Every invoice that arrives — across all carriers, in whatever format — is digitized, standardized, and audited monthly against contracted rates and the current inventory. Discrepancies are flagged before payment and investigated. Disputes are filed. Approved invoices are routed for payment with full coding and audit trail.
Clients get one portal covering all carriers, with a dedicated support lead managing inventory, contracts, disputes, and reporting. The finance team sees spend trends, contract status, renewal alerts, and variance analysis. The IT team sees a live, carrier-agnostic inventory with a clear view of what services are active and what each costs. Procurement gets the contract data and benchmarking insight needed to negotiate renewals from a position of knowledge, not guesswork.
Typical client outcomes:
The platform also supports SOX compliance through structured financial controls and full audit trail visibility.
If your organization is carrying telecom spend it cannot fully validate, or spending significant team time on invoices that should be automated, talk to our team about what Sophia FinOps would look like for your environment.