Can I Call and Text with My OneSimCard?

The answer depends on which OneSimCard product you are using. Some products support native voice and SMS, while others are data-first and use VoIP for calls and texts.

Compare SIM & eSIM Options

How Voice and Texting Work by Product Type

Universal SIM

Universal SIM supports voice, SMS, and data in many destinations. Coverage and available services can vary by country and network generation.

DataMax eSIM

DataMax eSIM is primarily a data product. Voice calls and texts are handled through data-based apps, including OneSim VoIP and other messaging apps.

DataMax Physical SIM

Like DataMax eSIM, this is mainly designed for data service. Voice and messaging are typically handled through VoIP or internet-based apps.

Why Customers Get Confused

Many travelers expect every SIM or eSIM to behave like a traditional local carrier line. International travel connectivity is more nuanced. Some products provide native voice and SMS, while others focus on low-cost data and let you make calls through apps.

That is why the right product depends on how you travel, how important calling is, and whether you need a second number.

When to Use OneSim VoIP

If you are using DataMax eSIM or DataMax Physical SIM and want the ability to make and receive calls, OneSim VoIP can be the right solution. It works over mobile data or Wi-Fi and can be paired with a Personal Extra Number for added flexibility.

  • Use data to make and receive calls
  • Use a Personal Extra Number for voice and SMS use cases
  • Stay reachable without relying on traditional roaming rates

Important Note About Verification Codes

Some services such as banks, government sites, and high-security platforms may have limitations around which types of numbers they accept for verification. If your use case depends on OTP or verification messages, confirm the product and number type before purchase.

Need Global Data with Flexible Calling Options?

OneSimCard helps travelers stay connected in 200+ countries and territories with flexible SIM and eSIM choices built for modern travel.

Explore Your Options

FAQs

Can I make normal calls with DataMax eSIM?

DataMax eSIM is mainly for data. For voice communication, customers typically use OneSim VoIP or other app-based calling services.

Does Universal SIM support calling and texting?

Yes, Universal SIM is designed to support voice, SMS, and data in many countries, though service availability can vary by destination.

What if I only want data?

DataMax eSIM and DataMax Physical SIM are strong options for travelers focused on affordable, flexible mobile data.

© 2006-2026 Belmont Telecom Inc., DBA OneSimCard.com. All rights reserved