abesteSIM does not provide an eSIM for Switzerland that includes a phone number or SMS capability. The available Switzerland plans are data‑only, so travelers cannot receive or send traditional cell‑SMS or place voice calls through the local network.
Instead, users can rely on internet‑based communication services such as WhatsApp, Telegram or iMessage. These apps operate over the data connection and allow voice and text exchange without needing a local phone number. Travelers should verify that the apps they plan to use are accessible from Switzerland, as some destinations may block or restrict certain VoIP services.