TailSim does not provide an eSIM for Taiwan that includes a phone number or SMS capability. The provider offers only data‑only plans for travelers visiting Taiwan.
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 certain apps or VoIP services, so it is advisable to confirm that the applications you rely on are accessible in Taiwan before purchasing a TailSim eSIM.