eSIMNEXA does not offer any Montenegro eSIM plans that include a phone number or the ability to send or receive SMS. Travelers can only purchase data‑only eSIMs from this provider for Montenegro. For voice and text communications, popular VoIP applications such as WhatsApp, Telegram, and iMessage can typically be used over the data connection, although some destinations may block or restrict certain apps. It is advisable to verify that the specific apps a traveler relies on are accessible in Montenegro before purchasing an eSIMNEXA data‑only plan.