In case of a technical warning, the handset signals the fault to the user, which the user can reset with OK.

The maximum permitted time without a keepalive request and the maximum permitted Out of range time can be configured. If the time is exceeded, the warning is triggered. The value 0 disables the respective check.

A keepalive request is sent to the handset from the alarm server in order to check the availability of the mobile user.

Reception is necessary for voice and data communication between the handset and base stations. If there is no reception, communication is not possible.

Furthermore, the handset checks whether the battery is sufficiently charged. If the battery is not adequately charged, a technical fault is likewise reported. No settings can be made here.

Procedure:

1. Select the Additional Features icon in the main menu.
2. Select Configuration.
3. Enter the five-position service PIN and confirm with OK.
4. Select one of the three operating modes.
5. Select Technical Warning.
6. Change the values of the following parameters: