With the rise of VoIP (Voice over Internet Protocol) apps, Viber remains a highly trusted platform for free and premium voice calling. Whether you’re contacting friends, family, or colleagues, making Viber voice calls—also known as Viber to Viber calls or Viber voice chat—is easy, cost-effective, and reliable. This guide will walk you through how to make voice calls on Viber across devices, highlight real-world use cases, discuss key advantages, and explore the latest trends.
How to Make Voice Calls on Viber on Different Devices
Learning how to make voice calls on Viber depends on which device you use. Thankfully, the process is straightforward both on mobile and desktop.
On Mobile (iOS & Android)
- Open the Viber app on your smartphone.
- Go to the Contacts or Calls tab.
- Find a contact with the Viber badge (this means they can receive free calls).
- Tap the Call button to start your conversation.
If you’re already in a chat, simply open it and tap the call icon at the top. For more guidance, you can follow Viber’s official step-by-step instructions.
On Desktop (Windows, macOS, Linux)
- Launch Viber Desktop (linked with your mobile account).
- Use the search bar or the Compose button to find your contact.
- Click the audio call icon to start your call.
During a desktop call, you can even add more participants, making it a practical tool for group meetings or family conversations. The platform currently supports up to 40 people in one voice call, as confirmed in Viber’s help center.
If you’re also interested in text messaging, read our guide: How to send text messages on Viber easily.
Viber Out: Reaching Non-Viber Numbers
Sometimes your recipient doesn’t use Viber. In that case, Viber Out comes to the rescue. Simply:
- Open the Calls tab or the Keypad.
- Dial the full international number.
- Tap Viber Out Call to connect.
This feature is especially useful for making international calls to landlines at low rates. As Tech.co highlights in its review of international calling apps, Viber Out is one of the most affordable options compared to traditional carriers.
Real-World Applications of Viber Voice Calls
- Personal communication: Keep in touch with friends and family without paying extra cellular fees.
- Remote work: Professionals can use Viber for clear calls in regions with poor mobile coverage, provided there’s Wi-Fi or stable data.
- Business support: The new Viber Business Calls feature lets brands integrate real-time support directly in-app. This is a trend many companies are adopting, as shown in Infobip’s analysis of Viber Business integration.
Advantages of Viber Voice Calls
- Cost savings — free for Viber-to-Viber, cheap for Viber Out.
- High-quality audio — thanks to HD voice codecs.
- Cross-platform convenience — sync seamlessly between phone and desktop.
- Business opportunities — customer support through Viber Business Calls is growing quickly, as described in Nth.ch’s business communication insights.
- Privacy & Security — all calls are protected with end-to-end encryption.
Tips for Improving Call Quality
- Choose a quiet environment to avoid background noise.
- Use wired or USB headsets for clearer sound.
- Ensure a stable internet connection—Wi-Fi is usually better than mobile data.
- Keep your app updated to benefit from improved audio codecs.
For a deeper dive, Viber’s official blog on voice quality tips shares useful best practices.
Common Questions
| Question | Answer |
|---|---|
| Can I call someone without Viber? | Yes, with Viber Out you can reach landlines and mobiles worldwide. |
| Are international Viber calls free? | Yes, as long as both users are on Viber, calls are free. |
| Why is my call dropping? | Usually due to poor connectivity—try Wi-Fi or a better data plan. |
| Can I use Viber for group calls? | Yes, up to 40 participants can join on desktop. |
Learning how to make voice calls on Viber gives you a reliable, affordable, and secure way to stay connected—whether for personal chats, professional meetings, or customer service. Between free Viber-to-Viber calls, affordable Viber Out options, and innovative business integrations, Viber continues to be one of the best VoIP platforms in 2025. With the right setup—stable internet, quiet surroundings, and maybe a headset—you can enjoy crystal-clear conversations anywhere in the world. And if you want to stay connected globally, remember that you can also make international calls with Viber at some of the lowest rates available.