Simple procedure that explains how to access the service menu on the Gigaset Cordless to recover the IPUI code and other useful information.
I tried this procedure on the Gigaset S810H, it’s the same for the most Gigaset cordless.
Hold the 1 and 4 digit while pushing the power on button, then type the 76200 code to show the service menu.
In the old gigaset family like C59H you must hold pushed the three Keys 1,4,7 before the power on, then type the 76200 code to show the service menu.
If you need the IPUI code, you find it on the
SW-Serive SW-Service menu.