Hi Rasak,
On Mon, May 21, 2012 at 10:16:39AM -0700, rola wrote:
I stay in US where GSM band is a bit different from the rest of the World and as well the phone rf radio in some cases differ. The bands around me are 850 and PCS1900. My SIM career uses PCS1900. Also Motorola c123 with the radio band serving my area is hard to come by. So I guess, that is where my predicament lies. Hopefully I might get help eventually.
you could always use a european band version and do the filter re-work. After that, the phone should work in all bands, as there are no band filters anymore. Of course the phone will be sensitive to out-of-band interference from other strong transmitters, but apart from that it should solve the difficulty obtaining US-band versions of the phone.