Telecom Audit Guide

VoIP Statistics & Trends 2026

Market growth, adoption, AI, security and the shift from traditional phone lines — with FCC data through June 2025.

Last reviewed: July 17, 2026

63.4M
U.S. VoIP subscriptions
80.8% of fixed voice

Interconnected VoIP, June 2025 (FCC)

+4.1%
Business VoIP YoY
Residential −13.4%

June 2024 → June 2025 (calculated)

9.3%
OTT business VoIP growth
Bring-your-own-broadband

Business OTT interconnected VoIP YoY

$38.95B
Global telecom fraud
≈2.5% of telecom revenue

CFCA estimate for 2023 losses

Introduction

Voice over Internet Protocol has moved far beyond its original role as a cheaper alternative to the traditional telephone network. VoIP now supports cloud phone systems, mobile calling apps, contact centers, embedded communications, video meetings and AI voice agents.

That broader role makes the industry harder to measure. A residential VoIP line, a Microsoft Teams user, an international WhatsApp call and an AI agent answering a customer-service question all use internet-based voice technology, but they rarely appear in the same market report.

This page separates observed data from forecasts and explains what each trend means for businesses, carriers and communications technology providers. Latest official U.S. subscriber figures: FCC Voice Telephone Services status as of June 30, 2025 (released May 2026).

  • Traditional switched telephone lines continue to disappear.
  • Business VoIP adoption remains stronger than residential fixed-line adoption.
  • International voice traffic has shifted from metered carrier calls to internet applications.
  • Cloud communications increasingly combine calling, messaging, meetings and contact-center functions.
  • AI is turning recorded conversations into structured business data.
  • Fraud, caller identity and service resilience have become central purchasing considerations.

Key VoIP statistics

Headline figures from FCC subscription counts, international traffic research, platform milestones and fraud reporting. Percentages derived from FCC totals are identified as calculated.

At-a-glance metrics (observed unless noted)

At-a-glance metrics (observed unless noted)
MetricFigurePeriodSource / note
U.S. interconnected VoIP subscriptions63.4 millionJune 2025FCC; vs 15M switched lines
VoIP share of U.S. fixed voice≈80.8%June 2025Calculated from FCC totals
Business fixed connections on VoIP≈83.6%June 2025Vs 75.2% residential
Switched-line annualized decline17.9%Jun 2022–Jun 2025Calculated from FCC
Business VoIP YoY+4.1%Jun 2024–Jun 202542.2M → 44.0M
Residential VoIP YoY−13.4%Jun 2024–Jun 202522.4M → 19.4M
OTT business VoIP YoY+9.3%Jun 2024–Jun 2025≈95% of OTT VoIP is business
Cross-border OTT minutes>1.3 trillion2024 est.TeleGeography vs ≈305B carrier
Global population online6.0 billion (74%)2025ITU
Zoom Phone seats>10 millionOct 2025Vendor milestone
CS leaders exploring gen-AI voice85%2025 surveyGartner; 5% deployed voicebot
Global telecom fraud losses$38.95 billion2023CFCA
U.S. phone-call fraud losses$948 million2024FTC reports; median $1,500
UK analogue network targetJan 31, 2027OpenreachNew analogue sales stopped Sep 2023

Do not treat vendor milestones or survey intentions as the same class of evidence as FCC subscription counts.

VoIP share of U.S. fixed voice connections (June 2025)
All fixed voice on VoIP80.8%
63.4M VoIP / 78.4M total fixed
Business fixed on VoIP83.6%
44.0M VoIP vs 8.6M switched
Residential fixed on VoIP75.2%
19.4M VoIP vs 6.4M switched

How large is the VoIP market?

There is no single universally accepted valuation for the VoIP industry. Published estimates differ substantially because researchers measure different combinations of services.

Some reports count only paid VoIP subscriptions. Others include cloud PBX platforms, international calling, consumer applications, managed services, UCaaS, mobile VoIP or related contact-center revenue.

Published market estimates by category (separate methodologies — do not add together)

Published market estimates by category (separate methodologies — do not add together)
Market categoryRecent estimateForecastHorizonWhat it may include
Core global VoIP$60.2B (2025)$153.3B2035Consumer and business VoIP products/services
Broad VoIP services$172.5B (2025)$308.4B2030Managed, hosted, mobile, enterprise
Business cloud VoIP + UC$23.4B (2025)$65B2035Cloud business calling and adjacent UC
Mobile VoIP$64.7B (2026)$104.9B2030Voice apps primarily via mobile (≈12.9% CAGR from 2023 base)
Contact Center as a Service$8B (2026)$32.7B2033Cloud CCaaS: voice, digital, analytics
CPaaS (BT synthesis)—≈$20B2027APIs for voice, messaging, verification (~11% CAGR 2025–27)

Categories overlap. A business seat may appear in VoIP, UCaaS and mobile VoIP estimates simultaneously.

Recent market-size estimates (USD billions, not additive)

Horizontal view makes the definition gap obvious: “broad VoIP services” is several times larger than business cloud voice alone.

Same series as the chart
  • Core global VoIP (2025)60.2
  • Broad VoIP services (2025)172.5
  • Business cloud VoIP + UC (2025)23.4
  • Mobile VoIP (2026)64.7
  • CCaaS (2026)8.0

VoIP now accounts for four out of five U.S. fixed voice connections

The clearest evidence of VoIP adoption comes from the FCC’s count of U.S. voice subscriptions (Voice Telephone Services: Status as of June 30, 2025).

Traditional switched lines lost almost half their remaining subscriber base in three years. Interconnected VoIP also declined slightly — not a return to landlines, but a shift toward mobile, software-based business communications and apps that may fall outside the FCC’s interconnected-VoIP definition.

U.S. voice subscriptions — June 2022 vs June 2025 (FCC)

U.S. voice subscriptions — June 2022 vs June 2025 (FCC)
Connection typeJune 2022June 2025Change3-year %
Traditional switched access lines27.2M15.0M−12.2M−44.7%
Interconnected VoIP subscriptions68.0M63.4M−4.6M−6.8%
Total fixed voice (switched + VoIP)95.2M78.4M−16.8M−17.6%
Mobile voice subscriptions366.7M394.5M+27.8M+7.6%

Percentages and totals calculated from FCC published figures.

U.S. fixed voice mix — June 2025

VoIP is ≈80.8% of remaining fixed voice connections.

Accessible data for the doughnut chart

Accessible data for the doughnut chart
TypeMillionsShare of fixed
Interconnected VoIP63.480.8%
Switched access lines15.019.2%
Fixed voice subscriptions over three years (millions)

Same series as the grouped bars

Same series as the grouped bars
PeriodSwitchedVoIP
June 202227.268.0
June 202515.063.4

The traditional phone network is shrinking, but the U.S. has no single shutoff date

U.S. carriers had approximately 181 million switched access lines at the end of 2003. By June 2025, only 15 million remained — a decline of roughly 92%. Historical reporting definitions mean the long series is directional rather than exact.

Unlike the United Kingdom, the United States has no single national PSTN shutoff date. Carriers retire copper and migrate customers through FCC network-change and discontinuance processes. For businesses, lines still get harder and more expensive to maintain.

U.S. switched access lines (millions) — long decline

Anchor figures from the briefing/FCC series. Historical definitions differ — treat as directional (~92% decline 2003→2025).

Anchor points used in the chart

Anchor points used in the chart
YearSwitched lines (M)Notes
2003≈181End-of-year carrier lines (briefing)
202227.2FCC June
202515.0FCC June

Hidden endpoints that still depend on analogue or special circuits

Hidden endpoints that still depend on analogue or special circuits
Endpoint classWhy it mattersMigration note
Elevator & emergency phonesLife-safety / codeTest failover, power, monitoring
Fire & building alarm panelsAHJ / insurer requirementsCoordinate with alarm vendor
Fax machinesHealthcare, legal, finance workflowsPrefer secure eFax / digital
POS / payment terminalsCheckout continuityConfirm Ethernet or cellular path
Entry systems & intercomsPhysical securityValidate door release during outage
Telecare / medical alertVulnerable usersUK transition shows this is rate-limiting
Modems & telemetryBuilding / industrial controlInventory before copper cut
Paging / mass notificationCampus safetyMap to IP or radio alternatives

Business VoIP is growing while residential fixed voice declines

Aggregate U.S. VoIP subscriptions hide a sharp business–residential split. Businesses still need public numbers, routing, extensions, queues, recordings, emergency calling and admin controls — so VoIP remains the practical delivery model even as households go mobile-only.

Business vs residential fixed voice — June 2025 (FCC) with YoY

Business vs residential fixed voice — June 2025 (FCC) with YoY
SegmentVoIPSwitchedVoIP shareVoIP YoY
Business44.0M8.6M83.6%+4.1%
Residential19.4M6.4M75.2%−13.4%
All fixed63.4M15.0M80.8%−6.8% (3-yr)

YoY for business/residential VoIP is June 2024 → June 2025 (calculated). All-fixed VoIP % change shown is the three-year figure unless noted.

Interconnected VoIP subscriptions by segment (millions)

Same series as the chart

Same series as the chart
SegmentJun 2024Jun 2025YoY
Business VoIP42.2M44.0M+4.1%
Residential VoIP22.4M19.4M−13.4%

Over-the-top (OTT) interconnected VoIP — June 2025

Over-the-top (OTT) interconnected VoIP — June 2025
MeasureFigureWhy it matters
OTT interconnected VoIP total27.7 millionUses broadband from another provider
Share that is business≈95%Cloud phone architecture in the wild
Business OTT VoIP YoY+9.3%Connectivity and UC increasingly unbundled

International voice traffic moved into applications

Internet calling has not eliminated international conversation. It has changed who carries the traffic and how users pay for it. TeleGeography estimates cross-border OTT voice surpassed international carrier traffic in 2016.

International voice channel shift (TeleGeography estimates)

International voice channel shift (TeleGeography estimates)
Year / snapshotOTT / on-net appsTraditional carriersTakeaway
2013Skype ≈214B on-net min≈547B minCarriers still larger
2016OTT surpasses carriers—Inflection year
2023Combined ≈1.6T minIncluded in combinedApps dominate conversation
2024>1.3T OTT min≈305B minOTT ≈4× carrier volume

Figures are research estimates; application MAU counts can include duplicate accounts.

Cross-border minutes by channel — 2024 estimate (billions)

WhatsApp alone was estimated at ≈2.5B monthly active accounts (Sep 2024). Seven major apps totaled ≈6B accounts including duplicates.

Accessible chart data
  • Cross-border OTT>1,300
  • Traditional international carriers≈305

Cloud communications replaced the office PBX model

Modern cloud communications (UCaaS) combine calling with messaging, meetings, presence, contact-center functions and workflow integrations — and receive continuous software updates instead of decade-long PBX refresh cycles.

Collaboration scale vs paid phone seats — keep these distinct

Collaboration scale vs paid phone seats — keep these distinct
Platform signalFigureWhat it is / is not
Microsoft Teams MAU>320 million (2023)Collaboration platform users — not Teams Phone seats
Zoom Phone seats>10 million (Oct 2025)Paid phone seats milestone
Buying committee shift—Compare productivity suites, UCaaS, CCaaS and CPaaS — not only carriers

Hybrid work made the softphone a permanent business endpoint

Distributed work did not disappear when offices reopened. Softphones and mobile apps must answer the same business number from office, home, laptop or phone without moving a physical line.

U.S. remote-capable employees — work arrangement (Gallup, Feb 2026)

Among employees capable of working remotely. Separately, BLS estimated 35.5M people teleworked in Q1 2024 (22.9% of people at work).

Accessible chart data
  • Hybrid52%
  • Fully remote26%
  • Fully on-site22%
  • Evaluate mobile app reliability and browser calling, not only desk-phone catalogs.
  • Treat identity management and endpoint security as phone-system requirements.
  • Require a consistent user experience across devices.

Mobile connectivity expanded the addressable market for VoIP

As broadband and mobile coverage expand, reliable internet voice can operate in more places. ITU: 6 billion people online in 2025 (74%); ≈2.2 billion still offline. GSMA (2025): 5G ≈60% of mobile connections in both the U.S. and Canada.

Mobile VoIP market trajectory (Grand View Research)

Mobile VoIP market trajectory (Grand View Research)
YearEstimated marketNotes
2023$44.9BSegment baseline
2026$64.7BNear-term estimate cited in briefing
2030$104.9BProjected; ≈12.9% CAGR from 2023

Forecast — not an observed FCC-style count.

CPaaS turns voice into a software function

Communications Platform as a Service lets developers add voice, messaging and verification through APIs. A BT industry synthesis projected ≈$20B global CPaaS revenue by 2027 (~11% CAGR 2025–2027), with messaging ≈62% of revenue and voice ≈16%.

Illustrative CPaaS revenue mix (≈2025–27 synthesis)
Messaging share of CPaaS revenue≈62%
Voice share of CPaaS revenue≈16%
Smaller share, rising strategic weight with generative AI
  • Automated appointment reminders
  • Marketplace buyer–seller connect and number masking
  • Bank verification calls
  • Website click-to-call
  • On-call employee notification routing
  • In-product voice conversations

AI is changing what businesses get from a phone call

Speech recognition and generative AI turn conversations into structured data — transcripts, summaries, tasks, sentiment, compliance alerts, coaching prompts and CRM updates. Intention is high; production deployment is still early.

Gartner customer-service generative AI posture (survey of 187 leaders)

Gartner customer-service generative AI posture (survey of 187 leaders)
StageShareInterpretation
Expect to explore or pilot conversational gen-AI in 202585%Broad intent
Exploring generative AI voicebots44%Active evaluation
Piloting voicebots11%Limited production learning
Deployed voicebot5%Rare at time of survey

Intention ≠ deployment. Voice agents must handle interruption, accents, noise, auth, latency, handoff and compliance.

Generative AI voicebot status among surveyed CS leaders

Remainder is approximate (100 − 44 − 11 − 5) for visualization of how thin the deployed slice remains.

Accessible chart data
  • Exploring voicebots44%
  • Piloting11%
  • Deployed5%
  • Remainder (approx.)40%

Forward-looking AI impact claims (label as forecasts)

Forward-looking AI impact claims (label as forecasts)
ClaimHorizonSource class
Agentic AI could resolve 80% of common CS issues; −30% operating costBy 2029Gartner forecast
Gen-AI productivity value = 30–45% of current customer-care costsPotentialMcKinsey estimate
>40% of agentic AI projects canceledBy end of 2027Gartner forecast
Half of orgs expecting major CS workforce cuts abandon plansBy 2027Gartner forecast

The value of VoIP is shifting from connectivity to intelligence

Clear audio is table stakes. Differentiation sits above the media path: who called, what they needed, whether it resolved, process compliance, churn risk and cross-conversation product signals.

  • Cloud phone, UCaaS and contact-center platforms increasingly overlap.
  • Recordings become datasets — with privacy, consent, retention and access-control duties.
  • Buy for workflow outcomes, not only dial-tone SLAs.

VoIP cost savings depend on the starting point

There is no reliable universal savings percentage. Vendor case studies citing 45–75% savings are not neutral market averages. Model seats you will assign in month three, not day one.

Cost stack to model in a VoIP / UCaaS business case

Cost stack to model in a VoIP / UCaaS business case
Usually removedUsually added or retained
PBX hardware & maintenancePer-user software licenses
PRI / ISDN / analogue linesCalling plans & usage
Long-distance & international premiumsTaxes & regulatory fees
Separate conferencing / messaging toolsInternet connectivity & redundancy
Moves, adds, changes laborNetwork upgrades
Branch office phone closetsHeadsets / IP phones
On-site telecom specialistsEmergency calling / e911
—Security, recording, compliance, porting, integrations

VoIP security is now a business continuity issue

Internet voice inherits software and network risk: credential theft, SIP compromise, toll fraud, spoofing, vishing, robocalls, DDoS, insecure recordings, bad storage configs, unauthorized porting and synthetic-voice social engineering.

Fraud and trust indicators

Fraud and trust indicators
IndicatorFigurePeriodCaveat
Global telecom fraud losses$38.95B2023CFCA; ≈2.5% of telecom revenue; not VoIP-only
U.S. fraud reports with phone contact method284,6592024FTC; 19% of reports with a contact method
Reported losses from phone-contact fraud$948M2024Median loss $1,500; report-based
AI voices under TCPA artificial/prerecorded rulesConfirmedFeb 2024FCC; consent generally required

STIR/SHAKEN improves caller authentication but does not identify the caller

STIR/SHAKEN helps providers attest whether they know the customer and whether that customer may use the presented number. It does not prove the human is trustworthy — fraudsters can still call from legitimately obtained numbers.

Caller-identity operating model for legitimate outbound teams

Caller-identity operating model for legitimate outbound teams
ControlWhy it matters
Attestation qualityPoor attestation → spam labels → lower answer rates
Number reputation / branded callingProtects brand reachability
Consent & dialing practicesTCPA and state rules; AI voice restrictions
Robocall Mitigation Database complianceFCC removed 185 noncompliant providers in Aug 2025

Emergency calling remains a critical migration requirement

Cloud accounts can be used anywhere, which complicates dispatchable location. Kari’s Law and RAY BAUM’S Act set direct-dial and location expectations for covered multi-line systems in the U.S.

Resilience checklist for IP voice endpoints

Resilience checklist for IP voice endpoints
RiskMitigation
Employee moves / WFHProcess to keep e911 locations current
Large campus / hotel / multi-tenantLocation finer than building street address
Local power lossUPS / battery for ATA, router, PoE; documented procedure
ISP outageSecondary broadband or LTE failover; call forwarding
Life-safety analoguesTest with vendor; do not assume softphone coverage

The United Kingdom offers a preview of accelerated PSTN retirement

Openreach stopped selling new Wholesale Line Rental products in September 2023. Revised target: retire the analogue network by January 31, 2027, moving customers to digital voice over broadband.

VoIP adoption looks different across industries

Choose architecture based on the operational role of voice — not only headcount.

Contact centers

Routing, WFM, recordings, QA and CRM integrations dominate. Adoption ties to CCaaS and AI; voice remains the escalation path for complex or emotional issues.

Healthcare

Secure communications, reliable emergency calling, and strict control of recordings and PHI. AI transcription helps only with accuracy, access control and consent.

Hospitality

Guest-room phones, front desk, contact center, e911 precision and PMS integrations. Cloud helps multi-property admin without dropping fixed endpoints.

Education and public-sector campuses

Classroom handsets, alerts, paging, intercoms and public-safety workflows — complexity is system count, not just users.

Retail and field services

Cross-location routing, CRM attribution, missed-call automation and appointments often outweigh raw dial-tone savings.

Frequently asked questions about VoIP statistics

Is VoIP still growing?

Yes, but growth depends on what is measured. U.S. residential interconnected VoIP is declining as households go mobile-only. Business OTT VoIP, cloud communications, mobile VoIP, CPaaS and cloud contact-center markets show stronger growth.

What percentage of U.S. fixed phone connections use VoIP?

Approximately 80.8% of U.S. fixed voice connections used interconnected VoIP in June 2025, calculated from FCC totals of 63.4 million interconnected VoIP subscriptions and 78.4 million total fixed voice connections.

Is VoIP the same as UCaaS?

No. VoIP transmits voice over IP. UCaaS is a cloud service model that usually combines VoIP calling with messaging, meetings, presence, administration and integrations.

Is mobile calling considered VoIP?

Many mobile calls use IP inside the carrier network, and apps transmit voice over internet connections. Reports classify them differently depending on PSTN interconnection and whether the service is sold as a telephone subscription.

How much can a company save by switching to VoIP?

There is no credible universal savings percentage. Run a total-cost analysis against your PBX, carrier contracts, international usage, locations and compliance needs.

Is VoIP secure?

It can be — if you treat it like other enterprise software: authentication, configuration, encryption, monitoring and incident response. Cloud hosting alone is not a security control.

Will VoIP work during an internet or power outage?

Endpoints generally need connectivity and local power. Improve resilience with redundant broadband, cellular failover, backup power, call forwarding and geographic cloud redundancy. Life-safety systems need separate testing.

Methodology and source notes

Observed figures and forecasts are separated. Market categories are not summed. Calculated FCC percentages are labeled. Interconnected VoIP is not the entire universe of internet voice. Vendor MAUs are not paid phone seats. Universal savings claims are omitted. AI predictions are labeled as predictions.

Latest official U.S. subscriber data referenced: FCC Voice Telephone Services status as of June 30, 2025 (report released May 2026). Page last reviewed: July 17, 2026.

  • Observed figures and forecasts are separated.
  • VoIP, UCaaS, CPaaS, mobile VoIP and CCaaS estimates are not combined.
  • Percentages derived from FCC totals are identified as calculated.
  • FCC interconnected VoIP excludes many app-only calling modes.
  • Platform active-user counts ≠ paid phone-system seats.
  • AI pilot activity, deployments and long-term automation forecasts are different measures.
  1. FCC — Voice Telephone Services report (status as of June 30, 2025) — U.S. interconnected VoIP and switched-line figures; released May 2026
  2. TeleGeography — international voice and OTT traffic research — Cross-border OTT vs carrier minutes
  3. International Telecommunication Union (ITU) — Global internet adoption
  4. Communications Fraud Control Association (CFCA) — Global telecom fraud losses
  5. Federal Trade Commission (FTC) — Consumer fraud reports by contact method
  6. Openreach — UK analogue transition — January 31, 2027 target
  7. Gallup — remote / hybrid work — February 2026 remote-capable arrangements
  8. U.S. Bureau of Labor Statistics — Telework estimates
  9. Gartner — customer service / generative AI survey and forecasts — AI exploration, pilots, deployments, agentic AI outlook
  10. GSMA — North America 5G share — 2025 mobile connectivity reporting