MobiMatter does not offer a Nauru eSIM plan that includes a phone number or SMS capability. The provider’s Nauru offerings are limited to data‑only eSIMs, so travelers cannot place or receive traditional voice calls or text messages. To communicate while in Nauru, users can rely on VoIP applications such as WhatsApp, Telegram, or iMessage, which typically work over the data connection. However, some destinations may block or restrict particular apps or services, so it is advisable for travelers to verify that the VoIP tools they plan to use are accessible in Nauru before purchasing an eSIM from MobiMatter.