Simbye does not provide eSIM plans for Mongolia that include a phone number or SMS capability. Only data‑only eSIM options are available from this provider.
Travelers who need voice or messaging can use VoIP applications such as WhatsApp, Telegram or iMessage over the data connection. However, some destinations may block or restrict access to certain apps or VoIP services, so it is advisable to verify that these services can be used in Mongolia before purchasing an eSIM.