MTX Connect does not offer any Switzerland eSIM plans that include a phone number or SMS capability. Travelers who purchase an MTX Connect eSIM for Switzerland will receive only a data‑only plan.
The lack of a local phone number or SMS service does not impede most messaging and voice applications. Popular VoIP apps such as WhatsApp, Telegram, and iMessage can generally be used over the purchased data connection for call and messaging services. However, users should verify that the VoIP services they rely on remain accessible while in Switzerland, as some destinations may block or restrict certain apps.