MTX Connect does not provide an Argentina eSIM that includes a phone number or SMS capability. The only plans sold by the provider for Argentina are data‑only plans that give you internet access without a local numeric identity.
Users can still make voice or messaging calls within Argentina by using VoIP applications such as WhatsApp, Telegram, or iMessage over the data connection. However, not all VoIP services are guaranteed to work in every destination, as some countries block or restrict specific apps. Travelers should confirm that the apps they rely on are accessible in Argentina before purchasing a MTX Connect plan.