Connecting with friends, family, or contacts abroad can be costly and challenging. But with the advent of VoIP (Voice over Internet Protocol) technology, the landscape of international communication has been transformed. In 2025 VoIP makes it easy for users to make affordable and high-quality international calls using the internet. In this listicle, we will explore the top 12 VoIP providers in Japan .
These are the top 12 VoIP providers in Japan, so you can enjoy seamless communication with your international contacts.
1. FreJun
FreJun is one of the VoIP providers in Japan offering cloud PBX, SIP trunking, virtual numbers, call center solutions, and unified communications. These services help businesses reduce costs, scale efficiently, and enhance flexibility with advanced features like call routing and real-time analytics. However, service quality depends on internet connectivity and emergency service access might differ from traditional phone systems. FreJun is suitable for businesses aiming to modernize their communication infrastructure with cost-effective and feature-rich VoIP technology.
Key features: Cloud PBX, SIP Trunking, Virtual Numbers, Call Center Solutions, Unified Communications.
Pricing: Standard: Begins at $14.49 per user, per month.
Professional: Starts at $16.69 per user, per month.
G2 Review: 4.9 out of 5
VOIP Enable Global Call
2. Line
Line is a popular messaging app based in Japan that also offers VoIP services for international calling. Users can enjoy high-quality voice calls and video calls to Line users all around the globe. To call non-Line users, you can purchase Line Out credits and make affordable international calls to over 190 countries. Line’s versatility and user-friendly interface make it a great choice for VoIP users in Japan.
Key features: High-Quality Voice and Video Calls, Line Out Credits, and User-Friendly Interface.
Pricing: Contact the Line team for pricing details.
G2 Review: not rated
3. NTT Communications
NTT Communications is another leading telecommunications company in Japan that offers VoIP services. Their “OCN Hikari Denwa” package provides users with clear and affordable international calls to over 200 countries. NTT Communications also prioritizes the security of its customers, making it a suitable choice for business users who require a reliable and secure VoIP service for international calling.
Key features: Clear and Affordable International Calls, Security, and Reliability.
Pricing: Contact the NTT Communications team for pricing details.
G2 Review: 5 out of 5
4. Fusion Communications
Fusion Communications is a Japanese telecommunications company that specializes in providing VoIP services. With their “FUSION IP-Phone SMART” service, users can make affordable international calls to over 120 countries. Fusion Communications places emphasis on customer satisfaction, offering personalized support for its users to ensure a smooth and enjoyable calling experience.
Key features: VoIP Services, Affordable International Calls, Customer Satisfaction, Personalized Support.
Pricing: Contact the Fusion Communications team for pricing details.
G2 Review: not rated
5. Skype
Skype is a widely recognized VoIP service owned by Microsoft that allows users to make international calls using the internet. Its users can make free voice and video calls to other Skype users worldwide. To call landlines and mobile numbers, users can purchase its credits or subscribe to an affordable calling plan, which covers over 150 countries. The familiarity and ease of use of it make it a top choice for Japanese VoIP users.
Key features: Widely recognized VoIP service, Owned by Microsoft, Allows international calls using the internet, Free voice and video calls to other Skype users worldwide, Option to call landlines and mobile numbers with purchased Skype credits or subscription plans, Covers over 150 countries, Familiarity and ease of use, Popular choice for Japanese VoIP users.
Pricing: Starts at Rs. 476.43 per month.
G2 Review: 4.3 out of 5
6. Rakuten Viber
Rakuten Viber is one of the messaging and VoIP providers owned in Japan, it is an e-commerce giant Rakuten. Viber allows users to make free voice and video calls to other Viber users worldwide. For international calls to non-Viber users, Viber Out offers affordable rates to over 190 countries. With a clean and simple user interface, Viber has become a popular choice for VoIP users in Japan.
Key features: Free Voice and Video Calls, Viber Out, Clean and Simple User Interface, Messaging Service, Owned by Rakuten.
Pricing: Contact the Rakuten Viber team for pricing details.
G2 Review: not rated
7. Brastel Telecom
Brastel Telecom is a Japanese company that specializes in providing VoIP solutions. Their “Brastel IP-Phone” service offers cost-effective international calls to over 200 countries. Brastel Telecom also offers smartphone apps for Android and iOS users, allowing users to make calls from their mobile devices at home or on the go.
Key features: International Calls, Cost-Effective Rates, Smartphone Apps, Mobile Accessibility.
Pricing: Contact the Brastel Telecom team for pricing details.
G2 Review: not rated
8. Google Voice
Google Voice, a VoIP service provided by Google, allows users to make free voice calls to other Google Voice users and affordable international calls to landlines and mobile phones. With access to over 150 countries, Google Voice is an excellent option for Japanese users who require a reliable and cost-effective VoIP service for international calling.
Key features: Free Calls to Google Voice Users, Affordable International Calls, Country Access, Reliability, and Suitability for Japanese Users.
Pricing: Contact the Google Voice team for pricing details.
G2 Review: 4.1 out of 5
9. Vonage
Vonage is one of the widely recognized VoIP providers in Japan offering international calling plans for personal and business use. With affordable calling rates to over 190 countries, Vonage appeals to Japanese users who need to stay connected with their international contacts. Vonage also offers advanced features such as call forwarding, voicemail, and call blocking.
Key features: International Calling Plans, Affordable Rates, Advanced Features, Target Audience.
Pricing: Contact the Vonage team for pricing details.
G2 Review: 4.3 out of 5
10. AINEO Networks
AINEO Networks is one of the VoIP providers in Japan that offers a range of services, including international calling plans for both personal and business use. With competitive rates in over 170 countries, AINEO Networks ensures that users can stay connected with their international contacts without breaking the bank. They also offer advanced features such as call recording, call forwarding, and auto-attendant.
Key features: VoIP Services, International Calling Plans, Competitive Rates, Advanced Features, Japan-Based.
Pricing: Contact the AINEO Networks team for pricing details.
G2 Review: not rated
11. Tokai Communications
Tokai Communications is a Japanese telecommunications company that offers VoIP services for international calling. Their “OCN IP-Phone” service provides cost-effective international calls to over 180 countries. With a focus on customer service, Tokai Communications ensures that its users enjoy a smooth and enjoyable calling experience.
Key features: Telecommunications Company, VoIP Services, OCN IP-Phone Service, Cost-Effective International Calls, Customer Service Focus.
Pricing: Contact the Tokai Communications team for pricing details.
G2 Review: not rated
12. Zoom
Zoom, a popular video conferencing app, also offers VoIP services for international calling. Users can make free voice and video calls to other Zoom users and purchase credits to call landlines and mobile numbers worldwide. With affordable rates in over 190 countries, Zoom has become a popular choice for Japanese VoIP users who need a reliable service for international calling.
Key features: Video Conferencing and VoIP Services, Free Voice and Video Calls, Paid International Calls, Affordable Rates, Reliability, and Popularity in Japan.
Pricing: Contact the Zoom team for pricing details.
G2 Review: 4.5 out of 5
Advantages of Using VoIP for Global Calls
| Feature | Advantage |
| Cost Savings | Reduced rates for international calls. |
| Call Quality | HD voice and minimal latency for crystal-clear communication. |
| Portability | Make calls from anywhere with an internet connection. |
| Advanced Features | Voicemail, call forwarding, virtual numbers, and more. |
| Scalability | Easily add new lines or features as your business grows. |
Conclusion
In today’s globalized world, staying connected with friends, family, and business contacts abroad is crucial. With the wide array of VoIP providers available in Japan, international calling has never been more accessible and cost-effective. By choosing the right VoIP service, you can enjoy seamless communication with your international contacts without breaking the bank.
Further Reading:Top 13 Virtual Telephony Providers In Nepal For International Calling
Subhash is the Founder of FreJun, the global call automation platform. With 8+ years of entrepreneurial experience, FreJun was established to help customers with their voice communication needs. The goal of FreJun is to develop cutting edge technology and solutions to help customers.