My older very favorable Gigaset A58H quattro increasingly suffered after two years from amnesia and could not reliably assign the numbers different names - as a halt so goes. As a replacement so I ordered a Gigaset C620A with answering machine and two handsets, which have been delivered after 2 days, but without correct invoice in the package, only with the delivery note. The Hammer: After I connected things to the plug of its predecessor, the devices also reported grade even with the base on when I pressed buttons corresponding with a two Elektowellen icon, based on min. 5 seconds and the handsets only briefly. And even funnier: I could even the old A58H log on to the new base and actually play the old phone book in about 20 seconds per camera on the new facility, which already is a huge relief for over a hundred numbers. If you have modified on your primary phone Intern 1 the Telephonliste, you need to before transmitting the data internally on each delete 2 to 6 where the existing list, otherwise the data is simply added additive and you have then louder multiple entries. The internal devices you can enter a different name, such as kitchen, dining room, etc. The C620A can set the annoying phone calls from health insurance companies and Joe, I'm calling you from the Microsoft Department, on a blacklist. And this also works on the Swisscom network. The procedure is described on page 30 of the well-to-understand manual.