GulfData does not provide an Estonia eSIM that includes a phone number or SMS capability; only data‑only plans are available from this provider.
If a phone number or SMS is needed, travelers can use popular VoIP apps 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 users should verify that the apps they rely on are accessible in Estonia before purchasing.