TEMS软件小问题

如题。
菜单栏的Presentation中的GSM项中有如下选项“AMR Call Average”、“AMR Cell Average”、“AMR Codec Usage”、“AMR Settings”，这些选项是做什么用的，请测试大虾留点笔墨吧，谢谢了

这些功能是严重网络开通AMR后，对网络的影响。AMR及多功能适应编码方式

Window Name	Description
AMR Call Average	Shows the distribution of AMR speech codec usage for the whole of the call currently in progress.
AMR Cell Average	Shows the distribution of AMR speech codec usage for the time spent in the current serving cell.
AMR Codec Usage	Shows the distribution of AMR speech codec usage over the past 480 ms period.
AMR Settings	Shows the current active set of AMR speech coders on the uplink and downlink respectively, along with hysteresis and threshold values governing AMR mode switches (changes from one coder to another).