OK, as I assumed, there is no supported way.Why do you think that snom can help me there? They have a solution: i have to start the xml when a call is incoming. this clearly can only be accomplished by changing the adressbook.
What is the unsupported way to change the adressbook an a v20 on linux? In V18 on windows I could access the addressbox-file. In V20 to my mind everything was locked. How can I change the file?