To manage the list of configured extensions, select Start, followed by Configuration and the Extensions panel.
Configured extensions are categorized as those having been assigned to extension ports, and those that are unassigned (free extensions). Free extension ports are also listed. These ports are available for either fixed extension assignment or for dynamic extension login (hot-desking).
For each extension, the number, friendly name, pickup group, port assignment, port secret, extension type (analogue or SIP), class of service and voicemail indicator are displayed.
At the right of the extensions panel, available FXS and SIP extension ports are shown, with current extension number assignments to these ports appended in square brackets.