Have you ever wondered if you can make phone calls using the internet while traveling abroad? If you’re a global traveler, avoiding roaming charges and staying connected without lugging around multiple SIM cards is a top priority. Luckily, internet calling, sometimes called VoIP calls, Wi-Fi calling, or app-based calling makes it possible to chat with friends, family, or business contacts from anywhere in the world.
In this guide, we’ll break down how internet calling works, the different ways you can use it, and how BNESIM’s eSIMs make it even more convenient when traveling abroad.
What Is Internet Calling?
Internet calling refers to making phone calls over the internet instead of a traditional cellular network. Instead of using your mobile minutes, these calls rely on data, either via Wi-Fi or mobile internet.
Different Types of Internet Calls
- VoIP (Voice over Internet Protocol) : The technology behind most internet calls.
- Wi-Fi calling : Carrier-enabled calling that uses your home or public Wi-Fi network.
- App-based calls : Calls made through messaging apps like WhatsApp, Viber, or WeChat.
Why It Matters for Travelers
Internet calling can significantly reduce roaming fees, avoid international calling costs, and provide reliable connectivity in places where mobile networks are limited. According to a 2023 survey by Statista, 65% of international travelers prefer using internet calling apps over traditional SIM-based calls to save on roaming costs.
How Does It Work?
At its core, internet calling converts your voice into digital data packets. These packets travel over the internet to the recipient, where they are converted back into sound.
- VoIP calls: Your voice travels over IP networks instead of the PSTN (public switched telephone network).
- Wi-Fi calling: If your carrier supports it, your phone automatically switches to Wi-Fi when cellular coverage is poor.
- App-based calls: Apps handle encoding and sending voice packets, often compressing them to save bandwidth.
Some internet calls can even work without a SIM card if you’re connected to Wi-Fi. This is especially useful in countries with high roaming fees or when your phone is locked to another network.
Popular Ways to Make Internet Calls
Messaging Apps With Call Features
Apps like WhatsApp, Facebook Messenger, Viber, WeChat, and iMessage are widely used for internet calls.
Pros:
• Free or very low-cost
• Easy to use across devices
• Popular worldwide, so chances are your contacts already use them
Cons:
• Both caller and receiver usually need the same app
• Call quality depends on Wi-Fi or mobile data strength
• Some apps are blocked in certain countries (e.g., WhatsApp in UAE)
Dedicated VoIP Services
Services like Google Voice, Zoom, and Microsoft Teams are designed specifically for internet-based communication.
Pros:
• Can call phone numbers directly, not just app users
• Useful for business and professional communication
• Often offer additional features like voicemail and call forwarding
Cons:
• Some require subscriptions or credits
• Setup may be more complex than messaging apps
Carrier-Provided Internet Calling
Many carriers offer Wi-Fi calling, which allows your phone to place calls using Wi-Fi when cellular coverage is weak.
Pros:
• Works with your normal phone number
• Seamless user experience—no need for third-party apps
• Useful in areas with weak cellular coverage but strong Wi-Fi
Cons:
• Only works if your carrier supports it
• May still count against your plan’s minutes or data allowance
• Not always available internationally
Always check with your mobile provider before traveling. Some carriers require enabling Wi-Fi calling in settings before leaving your home country.
Internet Calls vs Traditional Calls
| Feature | Internet Calls | Traditional Calls |
|---|---|---|
| Cost | Often free or cheaper than roaming | Expensive when roaming |
| Audio Quality | Depends on internet strength | Generally stable on strong signal |
| Convenience | Use apps, VoIP, or Wi-Fi calling easily | No apps needed, but costly abroad |
For frequent travelers, internet calls are usually the smarter choice especially when paired with reliable data through an eSIM.
Using BNESIM’s eSIMs for Internet Calls
An BNESIM eSIM allows travelers to access high-speed mobile data without changing physical SIM cards.
Why Choose an eSIM for Internet Calls?
• Activate instantly on arrival.
• Supports multiple countries(for example, BNESIM’s global eSIM covers 120+ countries), ideal for multi-stop trips.
• Works with WhatsApp, Zoom, and carrier Wi-Fi calling.
How to Use eSIM for Calls?
- Purchase a BNESIM eSIM plan via the app.
- Scan the QR code to activate on your phone.
- Connect to data via mobile network or Wi-Fi.
- Start making internet calls instantly.
It’s that simple! No roaming fees, no SIM swapping, just uninterrupted communication on the go.
FAQs
Can I make phone calls using the internet without a SIM card?
Yes! As long as you’re connected to Wi-Fi, you can make calls using apps like WhatsApp or Zoom without a SIM card.
Do all smartphones support internet calling?
Most modern smartphones do. Older models may not support Wi-Fi calling, but they can still run apps like WhatsApp.
Can I call emergency numbers over internet calls?
Internet calls may not connect to local emergency services. Always have a traditional SIM or local number for emergencies.
Is internet calling cheaper than roaming or international calls?
Yes. Internet calls, especially via apps or eSIM data plans, are often free or far less expensive than roaming or traditional international calls.
What apps work best for travelers making internet calls?
WhatsApp, Viber, and WeChat are popular for international travelers. For business, Zoom and Microsoft Teams are excellent options.
Conclusion
So, can you make phone calls using the internet? Definitely, and it’s often the most cost-efficient, reliable, and convenient option for travelers.
Pair your favorite calling apps with BNESIM’s eSIM, you’ll enjoy smooth connectivity worldwide without worrying about expensive roaming fees.
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Kai Claide
A content creator with a love for the outdoors and pictures. A true beach person at heart, enjoys sunny coastlines, sipping matcha, and making the most out of every adventure. Curious and is always up for something fun.
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