Show pagesource Old revisions Backlinks Export to PDF Rename Page ODT export Add to book Book Creator Add this page to your book Book Creator Remove this page from your book Manage book (0 page(s)) Help Keys The D-Series phones provide a set of user definable keys. E.g.: D-100 and D-200 have 18 self labeling keys that are aligned in 3 layers to each side of the display. The XT20 modules provide 60 self labeling keys, i.e. 20 keys on 3 layers. When the user configures a key, he'll be presented with a list of key-functions. This list can be changed via provisioning, new key-functions can be added, others removed or changed. See Configuration templates. You can discover the elements a single key-configuration is composed of here.