ah- ha - Eureka! I discovered the answer: there is a hidden reset button on the base station- it is between to two charger contact pins. If you hold it down the charg light will flash red and then the phone can see the base station again. it is funny because I read a lot of poss on these forums and read that this was not possible- and that this button

I have just got myself a second hand beocom 6000 MK1 with the pyramid base station. When I got a new battery the phone powered up perfectly and worked fine. I tested it to make and receive calls. However it was full of the previous owners information and phone numbers. I decided to reset to factory specs. However i think I made a big mistake: I used