GigSky does not provide eSIM plans for Iran that include a phone number or SMS capability. Travelers can only purchase data‑only eSIMs from GigSky for use in Iran. For voice and messaging, users may rely on VoIP applications such as WhatsApp, Telegram, and iMessage, which can generally function over the data connection. However, Iran sometimes blocks or restricts access to certain apps and VoIP services, so travelers should confirm that the apps they need will work in Iran before purchasing.