GigSky does not provide eSIM plans that include a phone number or SMS capability for Barbados. Travelers who use GigSky in Barbados will only have access to data services; for voice and messaging they will need to rely on VoIP applications such as WhatsApp, Telegram, or iMessage over the data connection. However, some destinations may block or restrict specific apps or VoIP services, so it is advisable to confirm that the applications you need are available in Barbados before purchasing a plan.