How can we decide for which cell should we activate AMR. Which indicators in NPO we should check and during Drive Test? RMS voice quality? Bad RxQual and RxLev in drive test? Bad FER? When is suitable AMR_FR and when AMR_HR? When AMR with DTX and when without DTX? Is 10.2 codec better than 7.95? Anything about inputs we should consider in order to activate AMR (FR and/or HR).