VeloeSIM does not provide any Japan eSIM that includes a phone number or SMS capability; only data‑only plans are offered for travelers visiting Japan.
Because there is no native telephony service, users can still make voice and messaging connections using popular VoIP applications such as WhatsApp, Telegram or iMessage over the data connection. However, some destinations may block or restrict certain VoIP services, so travelers should check that the apps they rely on are accessible in Japan before purchasing a VeloeSIM data plan.