Giga.Tel does not provide an eSIM plan for Liechtenstein that includes a phone number or SMS capability. Only data‑only eSIMs are available from the provider. Travelers can use VoIP applications such as WhatsApp, Telegram, or iMessage over the data connection for calls and messaging, but these services are not guaranteed in every country. It is advisable to verify that the apps you rely on are accessible in Liechtenstein before purchasing.