TailSim does not provide eSIM plans for Romania that include a local phone number or SMS capability. The provider only offers data‑only eSIMs for that destination, so travelers can use the data connection for VoIP services such as WhatsApp, Telegram, iMessage, and other internet‑based communication apps. While these apps typically function over the data connection, they may be blocked or limited in some locations, so passengers should confirm that the messaging or calling apps they depend on work in Romania before purchasing.