MTX Connect does not offer an eSIM plan for Sri Lanka that includes a local phone number or SMS capability. Only data‑only plans are available from the provider for this destination. Travelers can use VoIP services such as WhatsApp, Telegram, or iMessage over the data connection for calls and messaging, but some destinations may block or restrict access to these apps, so it is advisable to confirm that the services you need are reachable in Sri Lanka before purchasing a plan.