Kolet does not provide an eSIM for Singapore that includes a local phone number or SMS capability. Travelers who choose Kolet’s Singapore plans will only receive a data‑only plan and will not be able to make VoIP or SMS calls that rely on a traditional phone number. If they need voice or text communication, they can use internet‑based services such as WhatsApp, Telegram, or iMessage over the data connection. However, some destinations may block or restrict access to particular VoIP services, so users should confirm that the apps they need to use are accessible in Singapore before purchasing a Kolet plan.