esimzon does not provide a Gibraltar eSIM with a phone number or SMS capability; only data‑only plans are available from this provider. Travelers wishing to use voice or messaging services will need to rely on VoIP applications such as WhatsApp, Telegram, or iMessage, which can be accessed over the data connection. However, some destinations may block or restrict certain VoIP services, so it is advisable to verify that the apps you need work in Gibraltar before purchasing an eSIM.