MobiMatter does not provide an eSIM plan for Mongolia that includes a phone number or SMS capability. Travelers who need a local number or standard SMS will find that only data‑only eSIMs are available from this provider in Mongolia.
Because a phone number is not offered, users can still make voice calls or send messages using VoIP applications such as WhatsApp, Telegram, or iMessage over the data connection. However, some destinations may restrict or block specific VoIP services, so it is advisable to confirm that the apps you rely on are accessible in Mongolia before purchasing a plan.