Best VoIP international calling providers
•
•
8 min read
Families, teams, and businesses now stretch across continents. This is why international communication tools like VoIP have become essential.
The best VoIP for international calls makes every minute matter. People can call their families, work teams, or business partners anywhere without worrying about high fees or dropped calls.
In this article, we explore how VoIP international calls work and how to choose the best service provider.
What is VoIP international calling?
Voice over Internet Protocol is a technology standard that enables phone calls over the internet. Instead of traditional analog phone lines, voice calls travel through internet connections as data packets.
Today, international calling VoIP has become a reliable and cost-effective communication solution for both personal and business use.
How VoIP works for international calls
VoIP international calling requires three main components: a high-speed internet connection, a VoIP service provider that routes calls to global networks, and a device such as a smartphone or computer.
Using codecs, your voice is converted into digital data, sent as packets over the internet, and routed to the destination country, where it’s reassembled into audio in real time. By bypassing traditional carrier infrastructure, VoIP significantly reduces the cost of international calls without sacrificing quality.
Why use VoIP instead of traditional international calling
Lower prices, better audio quality, and more flexibility make VoIP better for international calling compared with traditional phone networks.
Price
VoIP does not require expensive hardware and installation fees. Per-minute charges and monthly fees are also generally lower.
AT&T 1,2,3, for instance, charges $1 to $3 per minute for international calls. Although it offers unlimited calling to 85+ countries for just $15 per month, this is on top of postpaid plans that cost approximately $35 per month.
On the other hand, VoIP providers typically just charge a few cents per minute. BOSS Revolution, for one, offers rates as low as $0.01 to $0.02 per minute even outside of subscription plans. Plus, it also allows free app-to-app calls wherever users are across the globe.
Quality
Today’s VoIP uses high-definition audio codecs and fast internet speeds, while traditional landlines still use narrowband audio over copper wires. It delivers better voice clarity for global communication.
Flexibility
Because VoIP services are cloud-based, they can be used anywhere with internet connection and on mobile phones, landlines, desktops, and tablets.
Best VoIP international calling providers (Comparison)
Here’s a quick peek at the top VoIP providers today.
| Provider | Price | Countries | Best for | Key features |
|---|---|---|---|---|
| BOSS Revolution |
|
200+ | Immigrant families, expats, small businesses worldwide |
|
| Vonage for Home4,5 | Plans start at $9.99 per month |
60+ (on World Prime Plan) |
Residents and small businesses located in North America |
|
| Ooma6 |
|
70+ (on World Plus Plan) |
Home users and small businesses in the U.S. and Canada |
|
| Net2Phone7 | Plans start at $28.99 per month | 40+ | Large businesses and remote teams |
|
| Viber Out8-10 | Plan starts at $5.99 per month | 57 | Casual, group, business communication |
|
| Localphone11-13 | Pay-per-minute rates start at $0.003 | 250+ | Small businesses |
|
| Global Call Forwarding14-17 | Plans start at $12.95 per month (for 303 minutes, additional minutes at $0.04 per minute) | 160+ | Businesses with global presence |
|
| Flowroute18-20 |
|
146+ | Businesses, developers, call centers |
|
BOSS Revolution
BOSS Revolution provides prepaid international calling services backed by global telecom provider IDT Corporation. It offers low cost international calls via the BOSS Revolution app, which allows overseas calling over Wi-Fi.
It has an easy signup and setup process that doesn’t require numerous documents or credit/debit cards. This makes international calling accessible to new immigrants and expats.
- Up to 90% lower rates compared to standard mobile rates
- No subscriptions and long-term contracts
- Free app-to-app international calls
- Low per-minute rates with no hidden charges
- Limited advanced features
- Not suitable for business phone systems
Vonage5,21-25
Vonage is a cloud communications platform that provides messaging, VoIP, and contact center solutions. It offers Vonage Business Communications for businesses and Vonage for Home for personal use.
VBC includes capabilities such as call forwarding, virtual receptionist, virtual holding area, and voicemail. It also provides a VoIP adapter that turns the home internet into a digital phone line.
- No long-term contracts
- Feature-rich plans (calls, SMS, video, integrations)
- Scalable for growing teams
- Includes a Vonage number
- Additional taxes and fees apply
- Requires high-speed internet
- Valid credit, debit, or checking account required
Ooma6,26
Ooma is a VoIP phone service that includes a plug-and-play phone system that easily integrates digital phone lines into existing internet infrastructure, making it easy to use traditional phone lines or mobile phones for international calls.
Users must have an Ooma account and device connected to their hardwired connection, home Wi-Fi, or cellular LTE. While portable, the Ooma hardware makes its services less flexible than fully cloud or mobile-only setups.
- Easy setup with dedicated device
- Affordable international plans
- Must have Ooma hardware for VoIP services
- Requires credit card for payments
- International calling charges subject to federal fees
Viber8-10
Viber is a call and messaging app that allows users to send messages for free to other Viber users. It also allows users to create group chats or community channels, making it great for businesses and organizations.
To use the app for international calling, users must subscribe to Viber Out, a VoIP service that handles calls to any phone number. The service works as a pre-paid model so users must purchase credits to make domestic or international calls.
- Built-in end-to-end encryption
- Easily transfer calls between devices
- Easy-to-use app
- Requires both users to install the Viber app to make free calls
- Call quality depends heavily on internet speed and quality
- Not a business phone system
Net2Phone7,27
Net2Phone provides an all-in-one communication platform for businesses. It has a VoIP business phone system that allows international calls to more than 40 countries. They also offer virtual phone numbers in over 50 countries for both domestic and international calling.
Designed mainly for businesses with a global presence, it has over 40 advanced VoIP features, including call analytics and a virtual receptionist.
- Complete business phone system for call centers and remote teams
- Unlimited international plans
- Strong call management features
- Annual pricing is locked on a 36-month term agreement
- Expensive subscription plans
- Interface not as modern as competitors
Localphone11-13
Localphone is a UK-based VoIP provider offering cheap international calls and virtual phone numbers. Its VoIP calling features work with any VoIP device and lets users make and answer calls from anywhere in the world.
With advanced features like voicemail, call forwarding, and call filtering, they help small business owners access lower call rates.
- No monthly fees or service charges
- Landline numbers available for rent
- Uses SIP authentication for secure VoIP calls
- Limited customer support
- Limited features for complex business needs
Global Call Forwarding14-17
Global Call Forwarding specializes in telecom services for businesses, providing virtual numbers and international call routing through its network in more than 160 countries.
Its services include advanced IVR, AI call analytics and reporting, and CRM integrations.
Corporate accounts also get dedicated account managers, live support, and a full suite of features for expanding globally and meeting complex communication demands. However, the service comes with higher VoIP rates.
- Cloud-based services require no extra hardware
- Accepts credit cards, PayPal, and flexible wire transfer payment options
- Different types of virtual phone numbers
- Personal accounts require a minimum three-month commitment
- Long processing time for applications
- 19.3% regulatory fee applied to monthly service plans, additional services, and additional usage
Flowroute18-20
Flowroute provides a fully cloud-based SIP trunking—a VoIP service that connects PBX systems to the internet. It’s designed for businesses, developers, and call centers scaling their VoIP infrastructure to accommodate calls to and from international locations.
Its enterprise-grade capabilities include multiple voice channels, unlimited concurrent calls, IVR menus, call center automation, and APIs. Businesses can also use unique local phone numbers from 112 countries and toll-free inbound numbers from 146 countries.
- Pay-as-you-go pricing
- No long-term commitments
- Advanced control and security
- Requires technical setup
- No built-in app or interface
Cheapest VoIP providers for international calls
BOSS Revolution offers international calls costing only $0.01 to $0.02 per minute, with no sign-up or monthly subscription fees. This makes it the best residential VoIP for international calls for people with loved ones in different parts of the globe.
Viber, Vonage, and Ooma offer free in-app calling and low international rates too, but sometimes it requires subscriptions.
Best VoIP for specific use cases
For people abroad who keep in touch with their loved ones at home, BOSS Revolution provides the most affordable and most accessible international calling services. You only need a mobile phone number to create an account and make calls overseas.
For businesses, VoIP providers with advanced features like Flowroute, Net2Phone, and Localphone may be better options. These offer business phone systems that can be integrated with call center operations or PBX systems.
For personal use, VoIPs with low international call rates are best. BOSS Revolution, Viber, Ooma, and Vonage all offer low per-minute rates and pay-as-you-go options.
VoIP vs traditional international calling
VoIP offers more flexibility and lower costs than traditional phone systems, though call quality still depends on internet speed. As shared by an IT security expert28 and a former telecommunications technician29, while landlines may offer slightly more stability in some cases, modern VoIP can match or even exceed traditional call quality.
How to choose a VoIP provider
When choosing a service provider for VoIP international calls, consider the following:
Price
VSome VoIP providers offer unlimited international calls, but may require subscriptions. Others may also charge additional fees depending on the call destination or local regulations. Always check call rates and related charges before signing up.
Coverage
VoIP services may be limited to certain countries only. Some may also limit calls only to other subscribers or to specific phone types.
Communication quality
Call quality can be affected by the VoIP provider, internet speed, power, and network jitter. While most VoIP problems are fixable, it’s still best to choose a service, like BOSS Revolution, that has a reliable network across the globe.
Devices
VSome VoIP systems require hardware installation while others are entirely cloud-based. If you intend to use VoIP for overseas calls to family and friends, cloud-based apps would be more convenient.
Common mistakes when choosing VoIP
VoIP quality relies on network performance. Your VoIP provider should conduct routine evaluations of network health.
The cheapest isn’t always the best. Don’t prioritize cost over quality and reliability. Choose what meets your needs and gives value for money.
VoIP systems are vulnerable to hacking, eavesdropping, cyberattacks. Especially for businesses, VoIP services should have end-to-end encryption and secure networks.
VoIP systems must grow alongside businesses. Check the limitations in a provider’s current infrastructure or service plans. Explore scalable, cloud-based VoIP solutions.
Check feedback from existing or previous customers to know where service providers meet expectations and where they don’t.
Some providers may tie users into long-term subscription plans or charge hidden fees. Read contracts carefully to check for additional charges.
Managing VoIP systems for business use requires technical knowledge to maximize benefits of the technology.
What is the cheapest way to call internationally?
The cheapest way to call internationally is to use apps like BOSS Revolution or Viber that use VoIP technology. They bypass traditional phone systems that typically charge high per-minute call rates.
Is VoIP better than mobile carriers?
Mostly, yes. The quality and speed of VoIP depends on internet connection. If your broadband has high bandwidth, VoIP calls can have better audio quality than mobile carriers - at lower costs.
Can VoIP replace traditional calling?
Not entirely. VoIP is more commonly used now, it may not work for outbound calls in areas where internet service is slow or non-existent. Power outages may also affect services.
Which VoIP has best international rates?
Many VoIP service providers offer low international rates, but the best is the one that meets your specific needs. For example, Viber Out has low monthly subscription fees with unlimited calling but only works in around 50 countries. To make calls to more than 200 countries at rates as low as $0.01 per minute, BOSS Revolution may be a better option.
Sources: all third party information obtained from applicable website as of April 20, 2026
- https://www.att.com/international/long-distance/
- https://www.att.com/international/pay-per-use-rates/
- https://www.att.com/home-phone/
- https://www.vonage.com/unified-communications/pricing/
- https://www.vonage.com/voip-phone-service/
- https://www.ooma.com/home-phone-service/international-plans/
- https://www.net2phone.com/features/voip-international-calls
- https://www.viber.com/en/about/
- https://account.viber.com/en/rates-index
- https://account.viber.com/en/
- https://www.localphone.com/services/voip
- https://www.localphone.com/prices
- https://www.localphone.com/about
- https://www.globalcallforwarding.com/services/voip-service/
- https://www.globalcallforwarding.com/prices/
- https://www.globalcallforwarding.com/country-coverage/
- https://support.unitedworldtelecom.com/billing-payments/understanding-pricing-plans-inbound-outbound-calling/
- https://flowroute.com/
- https://flowroute.com/pricing-details/
- https://support.bcmone.com/docs/how-does-flowroute-determine-the-specific-rate-charged-for-an-outbound-call
- https://www.vonage.com/about-us/
- https://www.vonageforhome.com/
- https://www.vonageforhome.com/plans/
- https://www.vonageforhome.com/plans/vonage-world-prime/#countries
- https://www.vonageforhome.com/rates/
- https://www.ooma.com/blog/voip-callers/
- https://www.net2phone.com/guide/what-is-voip-phone
- https://www.quora.com/How-does-the-quality-of-VoIP-calls-compare-to-traditional-phone-calls/answer/Diana-5348
- https://www.quora.com/How-does-the-quality-of-VoIP-calls-compare-to-traditional-landline-calls/answer/Ts-Garp-1
This article is provided for general information purposes only and is not intended to address every aspect of the matters discussed herein. The information in this article is not intended as specific personal advice. The information in this article does not constitute legal, tax, regulatory or other professional advice from IDT Payment Services, Inc. and its affiliates (collectively, “IDT”), and should not be taken or used as such by any individual. IDT makes no representation, warranty or guaranty, whether express or implied, that the content in this article is current, accurate, or complete. You should obtain professional or other substantive advice before taking, or refraining from, any action on the basis of the information in this article.
