KeepMyNumber is an app that lets you keep receiving calls to your original number even after switching SIM cards when traveling or relocating abroad. It works by rerouting calls from your home country number to your KeepMyNumber app, which operates via data (Wi-Fi or mobile internet).
You don’t need to carry a second phone or keep your old SIM in the device. The system handles everything through a virtual number setup, allowing full call reception via the app itself.