15 Stellar VoIP Providers in South Korea for Your International Calling Needs

In the digital age, the importance of clear and reliable communication cannot be overstated, especially when it comes to international connectivity. Voice over Internet Protocol (VoIP) technology has revolutionized the way we interact across borders, offering a cost-effective and versatile alternative to traditional telephone services. However, navigating through the plethora of VoIP providers to find the right one for your needs can be overwhelming. The stakes are high; a subpar service could lead to frustrating experiences marked by poor call quality, frequent disconnections, or unexpectedly high costs. Fortunately, for those based in South Korea with a need to maintain global connections, whether for personal or professional reasons, we have meticulously researched and compiled a comprehensive list of the top 15 VoIP providers.

These services stand out for their commitment to delivering the essential trio of quality, reliability, and cost-effectiveness, ensuring that your international calls are as seamless as they are affordable.

1. FreJun

FreJun has established itself as a go-to auto dialer service provider for a myriad of businesses across India. It is celebrated for its comprehensive suite of features, user-friendly interface, and cost-effectiveness. The free plan that FreJun offers is inclusive of automatic call distribution, call recording, and in-depth analytics, all of which are instrumental in refining your telemarketing strategies. FreJun’s unwavering dedication to superior customer support makes it an exemplary starting point for businesses venturing into the realm of auto dialer services.

Key features: 

• Virtual Numbers
• Call Automation
• Click Call
• Call Recording and Transcription
• CRM/ATS Integration
• Analytics and AI Insights
• Call Routing and Voice Broadcast

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 

2. KakaoTalk

KakaoTalk is not just a VoIP service; it’s a cultural phenomenon in South Korea, leading the market with its robust features and widespread adoption. It provides users with high-quality international calls that are encrypted from end to end, safeguarding your privacy and ensuring that your conversations remain confidential. While the basic service is free, users can opt for in-app purchases to access a wider array of features and services, enhancing their communication experience. KakaoTalk’s user-friendly platform integrates seamlessly with various devices, making it a versatile choice for individuals and businesses alike.

Features:

• Free high-quality voice and video calls.
• Group chat with unlimited members.
• In-app games, stickers, and emoticons.
• End-to-end encryption for secure communication.
• Seamless integration with Kakao services (e.g., KakaoPay).

Pricing: Free (with in-app purchases for premium features).

3. Skype

Skype is a global giant in online communication, and its reliability and comprehensive service offerings mark its presence in South Korea. It provides competitive rates for international calling and is renowned for its high-quality video calling and instant messaging capabilities. Skype’s platform is designed to cater to both personal and professional communication needs, offering features such as screen sharing, conference calling, and file sharing, which make it an indispensable tool for users looking to maintain robust international connections.

Key features: 

• Trailblazer in Online Voice Call Services
• Global Connectivity
• Comprehensive Suite of Features
• Longevity and Continual Updates
• Powerful Communication Tool

Pricing: Starts from Rs. 526.58 per month.

G2 Review: 4.3 out of 5

4. LINE

Line, a popular calling solution in Singapore, stands out for its expressive stickers and entertaining games. Integrating entertainment with communication, it offers a lively, social experience. It lets users make individual and group calls, and its user-friendly interface has made it an excellent choice for all age groups. The platform’s timeline feature allows for the sharing of daily activities, and its wide array of official accounts offers content ranging from news to entertainment.

Key features: Expressive stickers, Entertaining games, Individual and group calls, User-friendly interface, Timeline feature for sharing daily activities.

Pricing: Contact the Line team for pricing details.

5. Viber

Viber stands as a formidable competitor in the VoIP landscape, offering free voice and video calls to other Viber users. For calls to non-Viber numbers, the rates are affordable, making it a budget-friendly option for international communication. Viber is known for its intuitive interface and high-definition call quality, which contribute to a superior user experience. The app also includes features such as group chats, sticker market, and the ability to send photos and videos, enhancing its appeal as a comprehensive communication tool.

Key features: 

• Voice Calling
• Video Calling
• Messaging
• Group Chats
• End-to-End Encryption
• Cross-Platform Compatibility

Pricing: It offers a one-week free trial and then allows you to make Unlimited Worldwide Calls to 57 countries for $5.99.

6. Zoom

While Zoom has gained a reputation primarily for its video conferencing capabilities, it also provides top-notch VoIP services. It’s an ideal solution for professionals in South Korea who require reliable international business calls. Zoom’s platform supports large meetings, webinars, and collaboration features like whiteboarding and breakout rooms, making it a favorite among corporations and educational institutions for its scalability and ease of use.

Key features: 

• Virtually limitless capacity for attendees
• Breakout rooms
• Interactive features
• Recording feature
• End-to-end encryption
• Password-protected meetings

Pricing: Contact the Zoom team for pricing details.

G2 Review: 4.5 out of 5

7. Google Voice

Google Voice has recently expanded its availability to South Korea, quickly becoming a top choice for many users. It offers free calls to the U.S. and Canada, while its rates for other international destinations are highly competitive. The integration with other Google services, such as Gmail and Google Calendar, provides a seamless communication experience, allowing users to manage calls, messages, and voicemails all in one place. Google Voice’s smart features, like voicemail transcription and spam filtering, further enhance its appeal as a modern VoIP solution.

Key features: 

• Virtual phone number
• Call forwarding and screening
• Voicemail transcription
• Integration with google workspace
• Text messaging
• Low cost international calling
• Number portability
• Call recording
• Customized voicemail greetings
• Spam call filtering

Pricing: The basic plan starts at $10/mo

G2 Review: 4.1 out of 5

8. WhatsApp

WhatsApp enjoys global acclaim for its seamless messaging service, but it also excels in providing high-quality VoIP calls. The app allows free voice and video calls between WhatsApp users, which is a cost-effective solution for international calling. With its end-to-end encryption and user-friendly interface, WhatsApp has become a go-to app for millions of people looking to stay in touch with friends and family across the globe.

Key features: 

• Clear voice and video calling services
• End-to-end encryption
• WhatsApp Business for company-customer communication
• Simplicity and functionality

Pricing: It is free of cost

G2 Review: 4.7 out of 5

9. WeChat

WeChat is a powerhouse in Asia, offering a comprehensive suite of communication tools, including free international calls between WeChat users. For calls to non-WeChat numbers, the rates are affordable, and the call quality is consistently high. WeChat’s platform extends beyond voice and video calling, encompassing social media features, mobile payments, and even mini-programs, making it a multifaceted app that caters to a variety of user needs.

Features:

• Free voice and video calls worldwide.
• Integrated social media and messaging platform.
• WeChat Pay for secure online payments.
• Mini-programs for various services (e.g., booking, shopping).
• Supports large group chats with up to 500 members.

Pricing: Free (with in-app purchases for premium features).

10. Telegram

Telegram is widely recognized for its strong emphasis on security and privacy in messaging, but its VoIP service is equally commendable for its quality. It’s an excellent option for those who prioritize secure and private conversations. Telegram’s voice calls are encrypted, and the app’s cloud-based architecture ensures that users can access their messages and calls from multiple devices seamlessly.

Key features: 

• Encrypted voice and video calls
• Capacity to send files of any type and size
• Vast sticker library
• Channels and bots for accessing news, entertainment, and automated services

Pricing: Contact the Telegram team for pricing details.

G2 Ratings: 4.5/5

11. PopTox

PopTox distinguishes itself as a web-based VoIP service that allows users to make free international calls directly from their web browsers. This simplicity is one of its greatest strengths, as it requires no downloads or installations. PopTox offers decent call quality and is a convenient option for those who prefer not to use dedicated apps for their communication needs.

Features:

• Free internet-based VoIP calls to landlines and mobile phones.
• No app installation required; works directly from the browser.
• Limited daily free call minutes.
• Global coverage across multiple countries.
• Simple and user-friendly interface.

Pricing: Free (limited daily usage), paid plans available.

12. Dingtone

Dingtone is a VoIP provider that has garnered attention for its ultra-clear call quality, both in voice and video calls. With competitive rates, it has become a preferred choice for many South Koreans looking for reliable and affordable international calling options. Dingtone also offers unique features such as a walkie-talkie function and the ability to earn credits through participation in partner offers, which can be used to make free calls.

Key Features: 

• Dingtone provides free voice and video calls, texts, and a dedicated phone number, making it a comprehensive communication tool. 
• These features have made Dingtone a versatile tool for communication, attracting a wide range of users.

Pricing: Dingtone is free to use, with in-app purchases available for additional credits. This flexible pricing model allows users to choose the option that best fits their communication needs and budget.

13. Talkatone

Talkatone is a user-friendly VoIP app that provides free calling and texting to users around the world. The basic service is free, with in-app purchases available for those who wish to enhance their experience by removing ads or upgrading to premium call quality. Talkatone’s commitment to providing accessible communication options makes it a popular choice for those looking to stay connected without incurring high costs.

Features:

• Free phone number for calling and texting within the U.S. and Canada.
• VoIP calls over Wi-Fi or data without cellular service.
• Supports international calls to over 200 countries.
• Customizable voicemail greetings.
• Ad-supported with an option to remove ads.

Pricing: Free (with in-app purchases and premium subscriptions).

14. FreeTone

FreeTone stands out for offering free VoIP calls to the U.S. and Canada, while maintaining attractively low rates for other international destinations. The call quality is robust, ensuring that users can enjoy clear and uninterrupted conversations. FreeTone’s approach to providing free and low-cost calling options has made it a favored choice for regular international callers who seek both quality and affordability.

Features:

• Free U.S. and Canada phone number for calling and texting.
• High-quality VoIP calls over Wi-Fi or data.
• Supports international calling with competitive rates.
• Group messaging and multimedia sharing.
• Ad-supported with options to earn free credits.

Pricing: Free (with in-app purchases and premium subscriptions).

15. Rebtel

Rebtel is dedicated to providing a hassle-free international calling experience, with a promise of no dropped calls, no exorbitant rates, and no need for WiFi. This makes it perfect for those in South Korea who are looking for reliable and economical options for their international calling needs. Rebtel’s innovative technology allows users to connect through local phone lines, ensuring high-quality calls and offering a unique solution that sets it apart from traditional VoIP services.

Key Features: 

• Rebtel offers high-quality international calls without requiring an internet connection, making it a reliable solution for users with unstable or limited internet access. 
• This has made Rebtel a popular choice in countries with poor internet connectivity, where users need a reliable and affordable calling solution.

Pricing: The cost of Rebtel varies by country, starting from $5/month, making it a cost-effective solution for international communication. This flexible pricing model allows users to choose the option that best fits their communication needs and budget.

Conclusion

The landscape of VoIP providers in South Korea is rich and diverse, catering to a wide range of communication needs. Whether you’re seeking a service that’s vibrant and fun like LINE, professional and reliable like Skype and Zoom, or prioritizes security like Telegram, there’s a VoIP provider on this list that’s sure to meet your requirements. These 15 VoIP services offer a harmonious blend of quality, reliability, and affordability, ensuring that your international calling experience is not only hassle-free but also enjoyable. With these options at your fingertips, you can effortlessly maintain connections for business, keep in touch with loved ones, or simply catch up with friends overseas, all while enjoying the benefits of modern, internet-based communication.

Further Reading: 12 Top VoIP Providers in New Zealand for Seamless International Calling