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ISM868 bands that are located adjacent to the GSM 850/900 frequency<br> allocations.<br> <br> My initial investigations and enquiries indicate that this should be<br> possible by creative programming of the baseband processor in many<br> models of phones. =A0The trick, as I suspect you well know, is the<br> difficulty in getting the information and tools required to reprogram<br> these radios.<br> <br> I am now in a position to potentially fund further work on this.<br> <br> So, as the open-source group with the most experience reprogramming<br> baseband radios, what is the feasibility of creating a<br> proof-of-concept using the types of phones you already work with to<br> send and receive arbitrary data packets without reliance on a cell<br> tower (even for time synchronisation)?<br> <br> I know there are a lot of constraints and problems, but I am most<br> interested in creative solutions that can get us to a working<br> prototype, however crude, that can be used to demonstrate the<br> feasibility of what I am proposing.<br> <br> If this discussion is off-topic here, I am happy to hold the<br> conversation at the serval-project-developers google group, but I am<br> equally comfortable with it continuing here.<br> <br> Thanks in advance,<br> <font color=3D"#888888">Paul Gardner-Stephen.<br> Shuttleworth Telecommunications Fellow at Flinders University.<br> <br> </font></blockquote></div><br></div></div> --0016367faa93c4a56b04abdc0ca5--