[Q] Poor voice quality during a cell call. Skype call quality is perfect

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http://forum.xda-developers.com – Hi All, I am an owner of iball andi 4.5h. It's a descent device, but the only thing concerning me at the moment is the poor call quality. The sound is muffled and low fidelity ... Initially I thought that the ear-piece could be the problem, but a Skype call had the perfect call quality ... Compared to my old SGS i9000 - the call quality of the iball is pretty poor. I also compared with other Chinese phone with similar hardware and the quality was way better then mine. I've tried couple of roms, hoping for an improvement with no result. I am already thinking of a hardware(modem unit (HowTos)