WonderConnect does not offer a Guernsey eSIM plan that includes a phone number or SMS capability. Travelers who need a local number for voice or text messages will need to use alternatives.
If a data‑only plan is purchased, popular VoIP applications such as WhatsApp, Telegram, and iMessage can usually be used over the data connection to make calls and send messages. Some destinations may restrict access to certain apps or services, so it is wise to confirm that the required VoIP options are available in Guernsey before purchasing.