Commissioning24Mobile Unit Subscription (Checking In)Your mobile unit can be operated on a maximum of 10 different communicationssystems. To do so, it has to be subscribed to each system, i.e. checked in.The check-in procedure is usually done when commissioning the device. This isusually done by your system administrator for you when operated on the Aastra 800 /OpenCom 100 communications system.Checking in is done via the following steps:1. Switch on the mobile unit. To do so, press the button.When commissioning, the Language menu appears. Use the and navigationkeys to select the desired display language. Confirm with the softkey.2. When commissioning the first time, Subscription appears on the display.If you do not wish to immediately start checking in, after a few seconds No systemappears on the mobile unit on the idle display. In this case, press the softkeyand call the System > New system menu.A new DECT configuration entry must be configured on the Aastra 800 /OpenCom 100 communications system to check in the mobile unit. When themobile unit is to be checked in onto the communications system using the so-called Secured procedure the IPEI (International Portable Equipment Identity) ofthe mobile unit is required for this configuration entry (located in the >System > Show IPEI menu).3. You have to enter the Authentication Code first to log into a new system. Theaccess code is valid for all further steps during the login, i.e. up until the login wassuccessful or cancelled.Enter the (maximum) 8-digit code which was entered into the Configurator of thecommunications system. If no authentication code was entered into the Configu-rator, no code entry is necessary. Press the Next softkey.NoteWhen you prefix authentication code entry with the star key, the mobile unit will bechecked in as a GAP device. The header of the access code input mask changes toGAP/CATiq.
