Giga.Tel does not offer an eSIM for Martinique that includes a phone number or SMS capability. Their available plans for Martinique are data‑only, meaning you can connect to the internet but cannot receive or send traditional phone calls or SMS messages.
Travelers who need to communicate can use VoIP applications such as WhatsApp, Telegram, or iMessage over the data connection. However, some destinations may block or restrict VoIP services, so it is advisable to confirm that the specific apps you rely on will work in Martinique before purchasing the eSIM.