MeSIM does not provide a Réunion eSIM that includes a local phone number or SMS capability. All of its plans for Réunion are data‑only, which means you can use the cellular connection for internet access but cannot receive or make traditional voice calls or send SMS through the carrier network.
If you need to communicate while traveling, you can use VoIP applications such as WhatsApp, Telegram, or iMessage over the data connection. However, travelers should verify that these services are accessible in Réunion before purchasing, as some destinations may block or restrict certain apps or VoIP channels.