MyTravel eSIM does not offer any Japan eSIM plans that include a phone number or SMS capability. All available Japan plans from this provider are data‑only, providing internet access without the ability to receive or make voice calls or send text messages.
Travelers who need voice or messaging services may use VoIP applications such as WhatsApp, Telegram, or iMessage over the data connection. However, these services are not guaranteed in every situation, and some destinations may block or restrict certain apps or VoIP services, so it is advisable to confirm that the required applications are accessible in Japan before purchasing.