Voice over WiFi Market Size and Outlook 2031

Report Description

Forecast Period	2027-2031
Market Size (2025)	USD 7.86 Billion
CAGR (2026-2031)	28.29%
Fastest Growing Segment	Smartphone
Largest Market	North America
Market Size (2031)	USD 35.04 Billion

Market Overview

The Global Voice over WiFi Market will grow from USD 7.86 Billion in 2025 to USD 35.04 Billion by 2031 at a 28.29% CAGR. Voice over WiFi constitutes a telecommunication technology that enables the transmission of voice calls over Wireless Fidelity networks rather than relying on traditional cellular infrastructure. The market is primarily driven by the critical necessity to enhance indoor network coverage where cellular signals frequently degrade, alongside the increasing operational requirement for mobile operators to offload traffic from congested cellular spectrums to unlicensed Wi-Fi bands.

However, a significant challenge potentially impeding market expansion is the difficulty in maintaining Quality of Service (QoS), as latency and packet loss on congested public networks can severely impact call clarity. According to the Wireless Broadband Alliance, in 2024, Wi-Fi calling was identified by 70% of surveyed industry stakeholders as a critical area for monetizing Wi-Fi services and ensuring business value.

Key Market Drivers

The proliferation of VoWiFi-compatible smartphones and smart devices serves as a primary catalyst for the Global Voice over WiFi Market. Modern handsets are increasingly equipped with native support for Wi-Fi calling, allowing seamless transitions between cellular and wireless networks without requiring third-party applications. This capability is particularly prevalent in 5G-enabled devices, which are designed to leverage IP Multimedia Subsystem (IMS) cores for converged voice services. According to Ericsson, June 2024, in the 'Mobility Report June 2024', global 5G subscriptions grew by 160 million during the first quarter of 2024 to exceed 1.7 billion, representing a massive installed base of hardware capable of high-definition voice offloading. This surge in compatible hardware compels operators to activate VoWiFi services to maintain competitive service continuity and reduce churn.

Concurrently, the expansion of high-speed public and private Wi-Fi infrastructure is critical to supporting this device ecosystem and ensuring carrier-grade call quality. The deployment of next-generation standards, such as Wi-Fi 6E and Wi-Fi 7, provides the necessary bandwidth, low latency, and traffic management capabilities required to resolve historical Quality of Service (QoS) issues. According to the Wireless Broadband Alliance, in the 'Annual Industry Report 2024' highlighted in January 2024, over 41% of surveyed industry stakeholders planned to deploy Wi-Fi 7 by the end of 2024 to support advanced connectivity needs. This infrastructure densification is essential for managing the sheer volume of global connectivity; according to GSMA, February 2024, in 'The Mobile Economy 2024', the total number of unique mobile subscribers reached 5.6 billion by the end of 2023, necessitating robust Wi-Fi offloading mechanisms to alleviate strain on cellular macro networks.

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Key Market Challenges

The difficulty in maintaining consistent Quality of Service constitutes a significant restraint on the Global Voice over WiFi Market. Voice communication requires real-time data transmission, making it highly sensitive to network performance issues such as latency, jitter, and packet loss. When users connect to congested public or residential Wi-Fi networks, the bandwidth is often shared among multiple high-demand applications, leading to data delays. This instability results in dropped calls, voice distortion, or unsynchronized audio, which directly diminishes user confidence in the reliability of Wi-Fi calling compared to traditional cellular voice services.

Market growth is hampered because operators struggle to guarantee a carrier-grade experience over unlicensed spectrums they do not control. If subscribers experience poor call quality, they are less likely to utilize the service, reducing the effectiveness of traffic offloading strategies. The severity of current network congestion issues is widely recognized across the sector. According to the Wireless Broadband Alliance, in 2024, two-thirds of surveyed industry stakeholders identified the availability of 6GHz spectrum as a critical issue for addressing the interference and capacity constraints that currently degrade network performance. Consequently, the inability to assure seamless connectivity limits the broader adoption of Voice over WiFi solutions.

Key Market Trends

The Integration with Unified Communications as a Service (UCaaS) Platforms is reshaping the market as enterprises prioritize hybrid work models. This trend is fueled by the corporate sector's need to ensure seamless voice connectivity for remote employees using collaboration applications over residential Wi-Fi. Unlike consumer-driven adoption, this shift necessitates robust VoWiFi solutions that bypass cellular dead zones to ensure business continuity and professional call clarity. According to Damovo, November 2024, in the 'The Market Speaks – 5 trends driving the shift to Hybrid UC' article, 40% of surveyed business decision-makers indicated that their organizations rushed to implement new communication tools to adapt to remote working, underscoring the urgency for reliable, non-cellular voice infrastructure.

Concurrently, the Integration of Artificial Intelligence for Enhanced Voice Quality is emerging to address packet loss on unlicensed spectrums. Operators are deploying machine learning algorithms at the network edge to predict congestion and dynamically adjust codec parameters, delivering a carrier-grade audio experience. This evolution moves beyond basic connectivity to active quality assurance, which is vital for retaining subscribers who demand high-definition voice performance. According to NVIDIA, February 2024, in the 'State of AI in Telecommunications: 2024 Trends' report, 48% of surveyed telecom professionals identified network operations and management as a primary area for AI investment, highlighting the sector's commitment to leveraging automated intelligence for optimizing service reliability.

Segmental Insights

The smartphone segment represents the fastest growing category within the Global Voice over WiFi market, driven by the extensive integration of native calling capabilities in modern mobile operating systems. This expansion is fueled by the critical need to improve indoor connectivity and offload traffic from congested cellular networks, allowing users to maintain service continuity in areas with weak signals. Additionally, alignment with GSMA specifications ensures standardized implementation across devices, encouraging carriers to default voice services to wireless interfaces. Consequently, the increasing dependency on mobile endpoints for enterprise communication further solidifies this rapid market development.

Regional Insights

North America maintains a leading position in the Global Voice over WiFi market, driven by high smartphone penetration and extensive wireless internet infrastructure. Major telecommunication operators in the region actively deploy this technology to resolve indoor coverage issues and offload cellular network traffic. The market expansion is further supported by strategic spectrum management from the Federal Communications Commission, which facilitates the deployment of advanced wireless capabilities. Consequently, the established presence of public and private WiFi networks enables seamless communication services, ensuring the region remains the primary contributor to global market revenue.

Recent Developments

In December 2025, 1GLOBAL strengthened its collaboration with the financial technology company Revolut to launch comprehensive mobile plans in Poland that feature worldwide Voice over WiFi capabilities. This partnership integrates telecommunications infrastructure directly into the banking application, allowing users to access high-definition voice services and seamless connectivity via Wi-Fi when roaming or in low-signal areas. The General Manager of Telco at Revolut highlighted that the new offering includes Tier-1 telecom features designed to provide a differentiated user experience. This initiative marks a significant step in the convergence of fintech and telecommunications services, leveraging embedded SIM technology to facilitate global communication access.
In October 2025, Bharat Sanchar Nigam Limited (BSNL) launched its Voice over Wi-Fi (VoWiFi) service in India's West and South Zones as part of the company's silver jubilee celebrations. The state-run telecom operator introduced the feature to allow customers to make voice calls through broadband or Wi-Fi connections in areas where cellular reception is poor or unavailable. This strategic move aimed to bring the operator's service capabilities on par with private competitors who had previously established similar functionality. The Secretary of the Department of Telecommunications officiated the soft launch, which serves as a precursor to a planned nationwide rollout designed to enhance digital connectivity for all subscribers.
In December 2024, Kyivstar, the largest telecommunications operator in Ukraine, introduced Voice over WiFi (VoWiFi) technology to its subscriber base to address connectivity challenges. This new service enables users to maintain voice communications in areas with weak or unstable mobile network signals by utilizing available Wi-Fi access points. The operator utilized the Generic Access Network protocol to facilitate seamless connectivity between cellular and local area networks, ensuring calls are billed according to standard voice rates without extra charges. This deployment was part of a broader initiative to improve network resilience and accessibility for customers facing difficult coverage conditions throughout the country.
In July 2024, Digi Spain officially activated Voice over WiFi (VoWiFi) and Voice over LTE (VoLTE) services for all its mobile customers following a successful trial phase involving thousands of users. The telecommunications operator confirmed that the new functionality allows subscribers to make high-quality voice calls over Wi-Fi networks, which is particularly beneficial in locations with limited mobile signal coverage such as basements or thick-walled buildings. This service upgrade was made available automatically to users with compatible handsets and does not incur additional costs. The company emphasized that this launch aligns with its strategy to enhance network quality and improve the overall customer experience across its Spanish market.

Key Market Players

Cisco Systems Inc.
AT&T Inc.
Ericsson AB
Nokia Corporation
Huawei Technologies Co., Ltd.
Orange S.A.
T-Mobile US, Inc.
Verizon Communications Inc.
Broadcom Inc.
TELUS Corporation

By Technology	By Voice Client	By Device Type	By End User	By Region
CSFB VoLGA VoIMS	Integrated VoWiFi Separate VoWiFi Browser VoWiFi	Smartphone Router Wireless Modem Others	Residential Commercial	North America Europe Asia Pacific South America Middle East & Africa

Report Scope:

In this report, the Global Voice over WiFi Market has been segmented into the following categories, in addition to the industry trends which have also been detailed below:

Voice over WiFi Market, By Technology:

CSFB
VoLGA
VoIMS

Voice over WiFi Market, By Voice Client:

Integrated VoWiFi
Separate VoWiFi
Browser VoWiFi

Voice over WiFi Market, By Device Type:

Smartphone
Router
Wireless Modem
Others

Voice over WiFi Market, By End User:

Residential
Commercial

Voice over WiFi Market, By Region:

North America

United States
Canada
Mexico

Europe

France
United Kingdom
Italy
Germany
Spain

Asia Pacific

China
India
Japan
Australia
South Korea

South America

Brazil
Argentina
Colombia

Middle East & Africa

South Africa
Saudi Arabia
UAE

Competitive Landscape

Company Profiles: Detailed analysis of the major companies present in the Global Voice over WiFi Market.

Available Customizations:

Global Voice over WiFi Market report with the given market data, TechSci Research offers customizations according to a company's specific needs. The following customization options are available for the report:

Company Information

Detailed analysis and profiling of additional market players (up to five).

Global Voice over WiFi Market is an upcoming report to be released soon. If you wish an early delivery of this report or want to confirm the date of release, please contact us at [email protected]

Table of content

1. Product Overview

1.1. Market Definition

1.2. Scope of the Market

1.2.1. Markets Covered

1.2.2. Years Considered for Study

1.2.3. Key Market Segmentations

2. Research Methodology

2.1. Objective of the Study

2.2. Baseline Methodology

2.3. Key Industry Partners

2.4. Major Association and Secondary Sources

2.5. Forecasting Methodology

2.6. Data Triangulation & Validation

2.7. Assumptions and Limitations

3. Executive Summary

3.1. Overview of the Market

3.2. Overview of Key Market Segmentations

3.3. Overview of Key Market Players

3.4. Overview of Key Regions/Countries

3.5. Overview of Market Drivers, Challenges, Trends

4. Voice of Customer

5. Global Voice over WiFi Market Outlook

5.1. Market Size & Forecast

5.1.1. By Value

5.2. Market Share & Forecast

5.2.1. By Technology (CSFB, VoLGA, VoIMS)

5.2.2. By Voice Client (Integrated VoWiFi, Separate VoWiFi, Browser VoWiFi)

5.2.3. By Device Type (Smartphone, Router, Wireless Modem, Others)

5.2.4. By End User (Residential, Commercial)

5.2.5. By Region

5.2.6. By Company (2025)

5.3. Market Map

6. North America Voice over WiFi Market Outlook

6.1. Market Size & Forecast

6.1.1. By Value

6.2. Market Share & Forecast

6.2.1. By Technology

6.2.2. By Voice Client

6.2.3. By Device Type

6.2.4. By End User

6.2.5. By Country

6.3. North America: Country Analysis

6.3.1. United States Voice over WiFi Market Outlook

6.3.1.1. Market Size & Forecast

6.3.1.1.1. By Value

6.3.1.2. Market Share & Forecast

6.3.1.2.1. By Technology

6.3.1.2.2. By Voice Client

6.3.1.2.3. By Device Type

6.3.1.2.4. By End User

6.3.2. Canada Voice over WiFi Market Outlook

6.3.2.1. Market Size & Forecast

6.3.2.1.1. By Value

6.3.2.2. Market Share & Forecast

6.3.2.2.1. By Technology

6.3.2.2.2. By Voice Client

6.3.2.2.3. By Device Type

6.3.2.2.4. By End User

6.3.3. Mexico Voice over WiFi Market Outlook

6.3.3.1. Market Size & Forecast

6.3.3.1.1. By Value

6.3.3.2. Market Share & Forecast

6.3.3.2.1. By Technology

6.3.3.2.2. By Voice Client

6.3.3.2.3. By Device Type

6.3.3.2.4. By End User

7. Europe Voice over WiFi Market Outlook

7.1. Market Size & Forecast

7.1.1. By Value

7.2. Market Share & Forecast

7.2.1. By Technology

7.2.2. By Voice Client

7.2.3. By Device Type

7.2.4. By End User

7.2.5. By Country

7.3. Europe: Country Analysis

7.3.1. Germany Voice over WiFi Market Outlook

7.3.1.1. Market Size & Forecast

7.3.1.1.1. By Value

7.3.1.2. Market Share & Forecast

7.3.1.2.1. By Technology

7.3.1.2.2. By Voice Client

7.3.1.2.3. By Device Type

7.3.1.2.4. By End User

7.3.2. France Voice over WiFi Market Outlook

7.3.2.1. Market Size & Forecast

7.3.2.1.1. By Value

7.3.2.2. Market Share & Forecast

7.3.2.2.1. By Technology

7.3.2.2.2. By Voice Client

7.3.2.2.3. By Device Type

7.3.2.2.4. By End User

7.3.3. United Kingdom Voice over WiFi Market Outlook

7.3.3.1. Market Size & Forecast

7.3.3.1.1. By Value

7.3.3.2. Market Share & Forecast

7.3.3.2.1. By Technology

7.3.3.2.2. By Voice Client

7.3.3.2.3. By Device Type

7.3.3.2.4. By End User

7.3.4. Italy Voice over WiFi Market Outlook

7.3.4.1. Market Size & Forecast

7.3.4.1.1. By Value

7.3.4.2. Market Share & Forecast

7.3.4.2.1. By Technology

7.3.4.2.2. By Voice Client

7.3.4.2.3. By Device Type

7.3.4.2.4. By End User

7.3.5. Spain Voice over WiFi Market Outlook

7.3.5.1. Market Size & Forecast

7.3.5.1.1. By Value

7.3.5.2. Market Share & Forecast

7.3.5.2.1. By Technology

7.3.5.2.2. By Voice Client

7.3.5.2.3. By Device Type

7.3.5.2.4. By End User

8. Asia Pacific Voice over WiFi Market Outlook

8.1. Market Size & Forecast

8.1.1. By Value

8.2. Market Share & Forecast

8.2.1. By Technology

8.2.2. By Voice Client

8.2.3. By Device Type

8.2.4. By End User

8.2.5. By Country

8.3. Asia Pacific: Country Analysis

8.3.1. China Voice over WiFi Market Outlook

8.3.1.1. Market Size & Forecast

8.3.1.1.1. By Value

8.3.1.2. Market Share & Forecast

8.3.1.2.1. By Technology

8.3.1.2.2. By Voice Client

8.3.1.2.3. By Device Type

8.3.1.2.4. By End User

8.3.2. India Voice over WiFi Market Outlook

8.3.2.1. Market Size & Forecast

8.3.2.1.1. By Value

8.3.2.2. Market Share & Forecast

8.3.2.2.1. By Technology

8.3.2.2.2. By Voice Client

8.3.2.2.3. By Device Type

8.3.2.2.4. By End User

8.3.3. Japan Voice over WiFi Market Outlook

8.3.3.1. Market Size & Forecast

8.3.3.1.1. By Value

8.3.3.2. Market Share & Forecast

8.3.3.2.1. By Technology

8.3.3.2.2. By Voice Client

8.3.3.2.3. By Device Type

8.3.3.2.4. By End User

8.3.4. South Korea Voice over WiFi Market Outlook

8.3.4.1. Market Size & Forecast

8.3.4.1.1. By Value

8.3.4.2. Market Share & Forecast

8.3.4.2.1. By Technology

8.3.4.2.2. By Voice Client

8.3.4.2.3. By Device Type

8.3.4.2.4. By End User

8.3.5. Australia Voice over WiFi Market Outlook

8.3.5.1. Market Size & Forecast

8.3.5.1.1. By Value

8.3.5.2. Market Share & Forecast

8.3.5.2.1. By Technology

8.3.5.2.2. By Voice Client

8.3.5.2.3. By Device Type

8.3.5.2.4. By End User

9. Middle East & Africa Voice over WiFi Market Outlook

9.1. Market Size & Forecast

9.1.1. By Value

9.2. Market Share & Forecast

9.2.1. By Technology

9.2.2. By Voice Client

9.2.3. By Device Type

9.2.4. By End User

9.2.5. By Country

9.3. Middle East & Africa: Country Analysis

9.3.1. Saudi Arabia Voice over WiFi Market Outlook

9.3.1.1. Market Size & Forecast

9.3.1.1.1. By Value

9.3.1.2. Market Share & Forecast

9.3.1.2.1. By Technology

9.3.1.2.2. By Voice Client

9.3.1.2.3. By Device Type

9.3.1.2.4. By End User

9.3.2. UAE Voice over WiFi Market Outlook

9.3.2.1. Market Size & Forecast

9.3.2.1.1. By Value

9.3.2.2. Market Share & Forecast

9.3.2.2.1. By Technology

9.3.2.2.2. By Voice Client

9.3.2.2.3. By Device Type

9.3.2.2.4. By End User

9.3.3. South Africa Voice over WiFi Market Outlook

9.3.3.1. Market Size & Forecast

9.3.3.1.1. By Value

9.3.3.2. Market Share & Forecast

9.3.3.2.1. By Technology

9.3.3.2.2. By Voice Client

9.3.3.2.3. By Device Type

9.3.3.2.4. By End User

10. South America Voice over WiFi Market Outlook

10.1. Market Size & Forecast

10.1.1. By Value

10.2. Market Share & Forecast

10.2.1. By Technology

10.2.2. By Voice Client

10.2.3. By Device Type

10.2.4. By End User

10.2.5. By Country

10.3. South America: Country Analysis

10.3.1. Brazil Voice over WiFi Market Outlook

10.3.1.1. Market Size & Forecast

10.3.1.1.1. By Value

10.3.1.2. Market Share & Forecast

10.3.1.2.1. By Technology

10.3.1.2.2. By Voice Client

10.3.1.2.3. By Device Type

10.3.1.2.4. By End User

10.3.2. Colombia Voice over WiFi Market Outlook

10.3.2.1. Market Size & Forecast

10.3.2.1.1. By Value

10.3.2.2. Market Share & Forecast

10.3.2.2.1. By Technology

10.3.2.2.2. By Voice Client

10.3.2.2.3. By Device Type

10.3.2.2.4. By End User

10.3.3. Argentina Voice over WiFi Market Outlook

10.3.3.1. Market Size & Forecast

10.3.3.1.1. By Value

10.3.3.2. Market Share & Forecast

10.3.3.2.1. By Technology

10.3.3.2.2. By Voice Client

10.3.3.2.3. By Device Type

10.3.3.2.4. By End User

11. Market Dynamics

11.1. Drivers

11.2. Challenges

12. Market Trends & Developments

12.1. Merger & Acquisition (If Any)

12.2. Product Launches (If Any)

12.3. Recent Developments

13. Global Voice over WiFi Market: SWOT Analysis

14. Porter's Five Forces Analysis

14.1. Competition in the Industry

14.2. Potential of New Entrants

14.3. Power of Suppliers

14.4. Power of Customers

14.5. Threat of Substitute Products

15. Competitive Landscape

15.1. Cisco Systems Inc.

15.1.1. Business Overview

15.1.2. Products & Services

15.1.3. Recent Developments

15.1.4. Key Personnel

15.1.5. SWOT Analysis

15.2. AT&T Inc.

15.3. Ericsson AB

15.4. Nokia Corporation

15.5. Huawei Technologies Co., Ltd.

15.6. Orange S.A.

15.7. T-Mobile US, Inc.

15.8. Verizon Communications Inc.

15.9. Broadcom Inc.

15.10. TELUS Corporation

16. Strategic Recommendations

17. About Us & Disclaimer

Report Description

Table of content

Figures and Tables

Frequently asked questions

What was the market size of the Global Voice over WiFi Market in 2025?

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