Hello norbi,
I found a
coverage map. According to this info, as inquisitor says, Orange and other major operators offer WCDM/2100. As I will visit Vienna and its suburbs, as long as Datenpaket supports both WCDMA and GSM, it will be fine for me.
Hello inquisitor,
First of all, "1800" was my typo. I checked again and its "800" as you pointed out.
Do you know Orange (and other operators) support both WCDMA and GSM with single SIM?
Because there is no operataor in Japan that supports WCDMA and GSM, I am afraid whether I can use my wifi router in service area of WCDMA.