Does CoreESIM provide coverage on German high-speed rail services like the ICE?

CoreESIM's German data plans primarily leverage Tier-1 carrier networks such as Deutsche Telekom, which generally offer robust 4G/5G propagation along major rail corridors. While Deutsche Bahn has improved onboard Wi-Fi, our eSIM provides a direct cellular connection. Expect strong signal in open areas, but be aware that tunnels, deep cuts, and certain station interiors may result in temporary signal attenuation. Performance inside newer ICE trains can be enhanced by repeater systems, but external network conditions remain the primary factor for consistent data.