BetterRoaming does not offer a Switzerland eSIM plan that includes a phone number or SMS capability. The provider’s available plans for Switzerland are data‑only, so travelers who need voice or text messages must rely on internet‑based services such as WhatsApp, Telegram, or iMessage. However, some destinations may restrict access to VoIP apps, so users should verify that the apps they plan to use are accessible in Switzerland before making a purchase.