Avelis eSIM does not sell a Vietnam eSIM that includes a phone number or SMS service. The provider offers only data‑only eSIM plans for travelers visiting Vietnam.
Using the data connection, travelers can normally make calls and send messages through popular VoIP applications such as WhatsApp, Telegram, and iMessage. However, some destinations may block or restrict certain apps or VoIP services, so it is advisable to confirm that the applications you rely on work in Vietnam before purchasing a plan.