The Argentina eSIM is data-only — no incoming calls, no SMS, and no Argentine phone number. To make calls, use WhatsApp, FaceTime, iMessage, or Zoom over the Movistar data connection (WhatsApp is the default messaging app across Argentina, so most local contacts will reach you there). Your home SIM stays active in your phone alongside the eSIM, so calls and texts to your usual number still come through — just turn off cellular data on the home line to prevent roaming charges, and set ETravelSim as your default mobile data line.