Can I Use a Mossroam eSIM and a Physical SIM Simultaneously?

As a traveler, you may be curious about whether you can operate both an eSIM and a physical SIM at the same time. The answer is yes! This is possible on an unlocked, eSIM-compatible device that supports Dual SIM functionality. While both can handle calls, only one can be used for data at any given moment. This guide explains how to effortlessly switch between your eSIM and physical SIM while on the go.

How to Switch Between eSIM and Physical SIM?

Toggling between your Mossroam eSIM and physical SIM card is straightforward and can optimize your connectivity during travel.To effectively set up your Mossroam eSIM for data and your physical SIM for calls, follow these simple steps.

For iOS Devices:

  • Go to Settings >  Cellular or Mobile Data > Ensure both your personal SIM and eSIM are active > Select Default Voice Line > Choose your Personal line > Return to Cellular or Mobile Data > Tap on Cellular Data and select your Mossroam eSIM > Locate the Cellular Data Switching option and toggle it off.

For Android Devices:

  • Go to Settings > Go to Connections > Select SIM Manager > Ensure both your personal SIM and eSIM are active > Go to Calls and confirm your personal SIM is selected > Choose Mobile Data and select your Mossroam eSIM > Scroll down and toggle off the Data Switching option.

Turn Off Data Switch

To use both eSIM and physical SIM at the same time, ensure that the "Data Switching" or "Cellular Data Switching" feature is turned off. This option prevents automatic switching between the SIMs based on signal strength.

Things to Keep in Mind

  • Mossroam eSIMs are designed for data only and do not support SMS or voice calls. However, you can use data for apps like WhatsApp or Messenger for messaging and calling.
  • To make traditional phone calls or send text messages, set up your physical SIM. Be aware that your carrier may apply charges for using these services abroad.
  • If your physical SIM is active for data, it could interfere with the data connection of your Mossroam eSIM.
  • Using two eSIMs at the same time is only possible on devices like the iPhone 13 or newer, which support dual active eSIMs.