X-QUORK--
I think most people feel a bit burned out on mobile phone questions -- it seems to come up every ten days or so!
Have a look at <A HREF="http://www.pprune.org/ubb/NonCGI/Forum3/HTML/000435.html" TARGET="_blank">http://www.pprune.org/ubb/NonCGI/Forum3/HTML/000435.html</A> which covers this in some detail. There are many, many other discussions about this on PPRuNe, and if you use the Search function (up there on the top right of the page) and enter Mobile Phones you'll find lots to keep you going.
After you've digested that lot, I'm sure that any specific questions you may have will get a sympathetic reading...
R (repeat perpetrator of mobile phone discussions)