Billion Connect does not provide any eSIM plan that includes a phone number or SMS capability for Liechtenstein; all available eSIM options from this provider are data‑only.
Travelers who need voice or text can use VoIP applications such as WhatsApp, Telegram, or iMessage over the data connection. However, some destinations may block or restrict these services, so it is advisable to verify that the applications you rely on are accessible in Liechtenstein before purchasing.