How to Use Both an eSIM and a Physical SIM Viettel - Guide for iOS & Android

 

This guide explains how to use both a Viettel eSIM and a physical SIM simultaneously on compatible iPhone and Android devices. It begins by detailing the required conditions: a smartphone that supports Dual SIM with eSIM capability, an unlocked device, access to two active SIM plans (one physical SIM and one Viettel eSIM), and a stable Wi-Fi connection for downloading the eSIM profile. The guide outlines how to verify eSIM support through device settings or by checking the EID number using *#06#.

It then provides step-by-step instructions for installing the Viettel eSIM alongside a physical SIM. For iPhone users, the process includes inserting the physical SIM, accessing Settings → Cellular → Add eSIM, scanning the Viettel QR code, activating the profile, and labeling the lines. Android users follow a similar flow through Settings → Connections/Network → SIM Manager → Add eSIM, scanning the QR code, and confirming activation.

Once both SIMs are active, the guide shows how to manage two lines effectively: choosing default SIMs for calls and messages, setting which SIM provides mobile data (important for tourists using Viettel local data), and switching between lines anytime through the phone’s SIM settings.

The FAQ explains that Dual SIM, Dual Standby (DSDS) allows both numbers to remain reachable, that two Viettel SIMs are allowed as long as they are different numbers, and that using two SIMs can slightly increase battery usage. The guide concludes by encouraging users to purchase a Viettel Tourist eSIM at airport kiosks and provides official Viettel contact information.

Read more: https://vietteltelecom.vn/tin-tuc/chi-tiet/how-to-use-both-esim-and-physical-sim-viettel

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