MTX Connect does not provide eSIM plans for Poland that include a local phone number or SMS capability. Travelers can purchase only data‑only eSIMs with this provider for the Polish destination.
With a data‑only plan, users can still make and receive voice calls and send messages through popular VoIP applications such as WhatsApp, Telegram, and iMessage. However, some destinations may block or restrict access to specific apps or VoIP services, so travelers should verify that the applications they rely on are reachable in Poland before purchasing.