TailSim does not provide a phone number or SMS capability for its Slovenia eSIM plans. The provider offers only data‑only eSIMs for that destination.
Travelers who need voice or messaging can use VoIP applications such as WhatsApp, Telegram, or iMessage over the data connection. However, some destinations may block or restrict access to specific apps or VoIP services, so it is advisable to confirm that the apps you rely on are available in Slovenia before purchasing a plan.