Billion Connect does not provide eSIM plans for Trinidad and Tobago that include a phone number or SMS. All of the available plans from the provider for this destination are data‑only, so travelers will need to rely on internet‑based VoIP applications such as WhatsApp, Telegram, or iMessage if they want to make calls or send messages. However, some services may be blocked or limited in Trinidad and Tobago, so it is wise to check that the apps you intend to use are accessible there before purchasing a plan.