Kolet does not provide Brunei eSIM plans that include a local phone number or SMS capability. Travelers who purchase a Kolet eSIM for Brunei will receive only a data‑only connection with no voice or text messaging services attached to a local number.
Because no phone number is provided, users typically rely on VoIP applications such as WhatsApp, Telegram, or iMessage for voice and messaging over the data link. However, accessibility of these apps can be affected by local restrictions, so it is advisable to confirm that the apps a traveler depends on work in Brunei before purchasing a plan.