Can I Use Calls and SMS with a Travel eSIM, or Is It Data-Only?
Eric Costilia
Travel eSIMs are typically data-only without a phone number, providing affordable mobile internet instead of traditional calls or SMS, with communication handled through messaging apps.
The standard format for a travel eSIM is data-only, meaning it does not include a phone number. This means it isn’t intended for traditional calls or SMS. Instead, you get affordable mobile internet without expensive roaming fees, and you can handle all your communication through messaging apps.
What are the key nuances, and why is it designed this way? We explain below.
Are All Travel eSIMs Data-only and Why?
Yes, this is the standard configuration for travel eSIMs (~97%), including TooSIM, PrimaSIM, and other top providers. This approach ensures:
- much lower prices compared to roaming;
- simpler and more reliable activation (no personal data required, no country-specific restrictions, and less regulation).
Besides, most travelers simply don’t need a new local phone number while on vacation. Communication with hotels, guides, and services usually happens via messaging apps.
Moreover, many travel eSIMs are designed to work seamlessly across multiple countries. For example, regional plans like TooSIM eSIM for Europe (37 countries, starting from $4.99) or PrimaSIM for South America (12 countries, starting from $8.99).
Information confirmed by the following source: Best Travel eSIMs Compared – Why Toosim Is a Smart Choice for Travellers in 2026.
In this format assigning a single local phone number would be technically impossible.
How to Bypass These Limitations?
You won’t be able to ask your provider to change the eSIM format or add a phone number. However, there are a couple of practical workarounds:
- Option 1: Keep your primary (home) SIM active alongside the eSIM and set it up to receive calls and SMS. It’s important to disable mobile data on that SIM.
- Option 2: Use messaging apps. In most cases, this is more than enough while traveling. Hotels, tour companies, and even many shops abroad communicate with customers via WhatsApp, Viber, and similar apps.
At the same time, data usage for voice calls and text messaging is minimal, so you can opt for smaller data plans, for example, a TooSIM eSIM for New Zealand with 3 GB ($8.99) or 5 GB ($12.99).
Conclusion
Almost all travel eSIMs cannot be used directly for calls and SMS, but this is an easily manageable limitation. You can simply keep your home SIM active alongside it or handle communication through messaging apps. At the same time, this limitation comes with clear advantages: lower prices, simpler purchase and activation, and stable internet access across multiple countries.
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Written by: Eric Costilia
Eric Costilia is an experienced writer, editor and researcher. His writing focuses mostly on tech, gaming. He wrote dozens of eSIM carriers reviews, which makes him an expert of this technology.