MTX Connect currently does not provide eSIM plans with a phone number or SMS capability for Belgium. Travelers can only purchase data‑only eSIMs from this provider. If voice or messaging functions are needed, internet‑based services such as WhatsApp, Telegram, or iMessage can be used over the data connection, though some destinations may restrict or block specific apps or VoIP services. Travelers should verify that the apps they rely on are accessible in Belgium before buying a plan.