This raises for me a question regarding the frequency bands the phones can operate in: The same model e.g. C115 operates in europe in the 900/1800 bands and in america in the 850/1900 bands. That means we can not select on the model. Are these the same phones (hardware) and simply the firmware is a little different or are there differences in hardware? If yes, is difference only the input filters which for the sniffing application have/can be removed anyway? The goal of my question is obviously to know if we can buy phones from america and use with osmocomBB in the europe bands? Thanks Matthias Am 06.01.2011 um 07:11 schrieb Scott Weisman: