Make phone numbers urls (with the "tel:" scheme) callable
completed by: Aaron H
To allow Wikivoyage users to call in one click a hotel or a restaurant. See the following feature request for more details https://sourceforge.net/p/kiwix/feature-requests/777/. Kiwix is a Wikipedia offline reader. This task is related to the new release of its Android mobile app. Instructions to compile the app can be found here (Android section). This requires knowledge of the Java programming language.
Students are required to read Wikimedia's general instructions first.