siemens sx541 in italy

Hi

sorry for disturbe...i try to read the forum but i can't understand german

i live in italy (i think my adsl is on analogue line pots)

i'd would like to buy an adsl router access point with voip functionality

i see the zyxel 2602 hwl (67 for isdn)

and the siemens sx541 sold in germany


is it possible to change the firmmware for these routers to be compatible with italian anolougue line?

i read that the second is compatible with smc firmware (this is valid for all siemens sx541 or only specific revision of this modems)?


Thanks again