See also:

Phone book
Displays The phone book accesses the contacts and shows all contacts for which a phone number has been stored. The entries can be selected to make a call. 1. "Telephone" 2. "Ph ...

Deleting all stored programs
Press the two outer memory buttons for approx. 20 seconds until the LED flashes rapidly. All stored programs are deleted. The programs cannot be deleted individually ...

Supplementary text messages
Addition information, such as on the cause of a fault or the required action, can be called up via Check Control. In urgent cases, this information will be shown as soon as the corresponding la ...