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Keep Your Number for iMessage & FaceTime with a Travel eSIM

Robin
Aug 26, 2025

Stay Connected: How to Use iMessage & FaceTime with Your Phone Number While Traveling

One of the biggest worries for international travelers is losing touch with loved ones or facing a massive phone bill upon return. You want to send photos, make video calls, and chat on iMessage just like you do at home, but the thought of data roaming charges is terrifying. What if you could use a cost-effective data plan for your trip to Japan or a tour across Europe without giving up your primary phone number for iMessage and FaceTime?

With a Yoho Mobile eSIM, you can. This guide will walk you through exactly how to set up your iPhone to use our affordable, high-speed data while keeping your home number active for those essential Apple services. Stay connected affordably with Yoho Mobile’s global eSIM plans!

Why iMessage and FaceTime are a Traveler’s Best Friend

Unlike traditional SMS and MMS messages, which travel over cellular voice networks and can trigger roaming fees, Apple’s iMessage and FaceTime run purely on data. This is great news for travelers! It means as long as you have an internet connection—either through Wi-Fi or a cellular data plan—you can use them freely.

This makes a data-only eSIM the perfect travel companion. You get all the data you need for maps, browsing, and staying in touch, without paying the premium for a full-service roaming plan from your home carrier. Plus, as noted by many tech publications, the shift towards data-based communication is making travel connectivity easier than ever.

The Secret: Dual SIM with eSIM Technology

Modern iPhones are equipped with Dual SIM capabilities, which allow you to use two cellular plans on one device. This is the magic that lets you keep your home number while using a travel eSIM. According to Apple’s official documentation, you can have one physical SIM and one or more eSIMs, or on newer models, two eSIMs active at once.

Here’s how it works for your trip:

  • Your Primary SIM/eSIM: This remains your line for your phone number. You’ll keep it active (but with data roaming turned off!) so iMessage and FaceTime stay registered to your number.
  • Your Yoho Mobile eSIM: This becomes your data powerhouse abroad. You’ll set your iPhone to use this line for all cellular data, giving you fast, affordable internet access.

Diagram showing how a Yoho Mobile eSIM provides data while the primary line handles iMessage and calls.

Step-by-Step Guide: How to Use Phone Number with eSIM Data for iMessage

Setting this up is surprisingly simple. Follow these steps to ensure a seamless experience.

Step 1: Install Your Yoho Mobile eSIM Before You Leave

Preparation is key. The best time to set up your travel eSIM is at home, where you have a stable internet connection.

  1. Choose Your Plan: Pick a Yoho Mobile data plan for your destination. Heading to the USA? We’ve got you covered. Exploring Thailand? No problem. Explore data plans for over 200 countries and regions.
  2. Check Compatibility: First, ensure your device is unlocked and supports eSIM technology by checking our official eSIM compatible devices list.
  3. Install the eSIM: For iOS users, the process is incredibly smooth. After purchase, you’ll receive an email. Simply tap the ‘Install’ button, and your iPhone will guide you through the setup in under a minute—no QR codes to scan!

Step 2: Configure Your iPhone’s Cellular Settings

Once you land at your destination, it’s time to tell your iPhone how to use your two lines.

  1. Go to Settings > Cellular.
  2. You’ll see both of your plans. Tap on each one and give them custom labels like “Primary” and “Yoho Travel” to avoid confusion.
  3. Set Cellular Data to your Yoho Mobile eSIM (“Yoho Travel”). This is the most important step.
  4. Set Default Voice Line to your “Primary” line. This ensures iMessage and FaceTime remain linked to your main phone number.
  5. Turn OFF “Allow Cellular Data Switching.” This prevents your phone from using data from your primary line, which could result in roaming charges.

iPhone cellular settings configured for using a Yoho Mobile eSIM for data and a primary line for calls.

Step 3: Verify Your iMessage and FaceTime Settings

Finally, a quick check to make sure everything is working as expected.

  • Go to Settings > Messages > Send & Receive. Make sure your phone number is checked under “You Can Receive iMessages To And Reply From.”
  • Go to Settings > FaceTime. Again, ensure your phone number is checked and active.

Now, you’re all set! You can send blue-bubble iMessages and make crystal-clear FaceTime calls using your primary number, all while powered by your Yoho Mobile data plan.

What if My iMessage Says “Waiting for Activation”?

Occasionally, iMessage might need a nudge to recognize the new data source. If you see an activation error, don’t panic. This is a common issue when iMessage is not working abroad, but it’s usually easy to fix.

  1. Connect to the Internet: Make sure you’re connected to Wi-Fi or that your Yoho Mobile eSIM is active and providing data.
  2. Toggle iMessage: Go to Settings > Messages, turn iMessage off, wait a minute, and turn it back on.
  3. Restart Your Phone: A simple reboot can solve many strange issues.
  4. Check for Updates: Go to Settings > General > About. If a carrier settings update is available, you’ll see a prompt to install it.

If you’re still having trouble, remember that with Yoho Care, you’re never truly disconnected. Our support is available to help you get everything sorted.

Frequently Asked Questions (FAQ)

Can I still receive regular SMS texts on my primary number?
Yes, you can typically receive standard SMS messages on your primary line, as they are part of the core cellular service. However, receiving them might incur roaming charges from your home carrier, as can replying to them. It’s best to check your home carrier’s roaming policy. For free communication, stick to data-based apps like iMessage and WhatsApp.

Will I be charged for roaming if I use iMessage with an eSIM?
No, you will not face iMessage roaming charges as long as you have correctly set your phone’s cellular data to use the Yoho Mobile eSIM. Since iMessage uses data, it will use your prepaid Yoho Mobile plan, not your primary carrier’s expensive international roaming data.

What happens if my primary SIM is turned off?
If you turn off your primary line completely in your phone’s settings, iMessage and FaceTime may de-register from your phone number and default to using your Apple ID (email address). To keep using your phone number, you must keep the primary line turned ON but with Data Roaming OFF.

How do I ensure my contacts see messages coming from my phone number, not my email?
In Settings > Messages > Send & Receive, look for the “Start New Conversations From” option. Make sure your phone number is selected here. This ensures that when you message someone new, it comes from your familiar number.

Conclusion

Traveling internationally doesn’t have to mean communication blackouts or bill shock. By leveraging the dual SIM capability of your iPhone and a flexible data plan from Yoho Mobile, you can get the best of both worlds: keep your personal phone number for iMessage and FaceTime, and enjoy affordable, high-speed data wherever your adventures take you. It’s the modern, smart way to travel.

Ready to stay seamlessly connected on your next trip? Browse our data plans and travel smarter with Yoho Mobile!