Can I make phone calls with a Thailand eSIM?

Most Thailand tourist eSIM plans are data-only and do not include a local Thai phone number for traditional voice calls or SMS. However, you can easily make voice and video calls using apps such as WhatsApp, FaceTime, LINE, or Skype, which run over your data connection. For almost all travelers, this app-based calling is enough to stay in touch with hotels, tour operators, and friends or family back home.