GigSky does not provide a Global (World) eSIM plan that includes a phone number or SMS service. Travelers can purchase only data‑only Global (World) eSIMs from GigSky. However, popular VoIP applications such as WhatsApp, Telegram, and iMessage can typically be used over the data connection for voice and messaging. Some destinations may block or restrict these applications, so travelers should verify that the VoIP services they rely on are accessible in the Global (World) coverage area before purchasing.