HD Voice - A game changer for voice quality in telecoms?

I came across an interesting innovation in the telecom sector recently and I just found a detailed article about it. It is difficult to imagine, but voice communication standards were established as early as in 1937 for landline networks and nothing changed since then. Frequencies ranged from 300 to 3400 Hz. When mobile networks were created old rules were adapted and new codecs helped to economize available frequencies. CDs give you as much as 44100 Hz. Do you feel the difference with the 3400 Hz limit for mobile and landline phones? 

MegaFon uses the same promotion approaches initiated by Nokia Siemens Networks, as Nokia is one of the patent holders for AMR-WB. They claim that a broader range of 50 - 7000 Hz conveys the voice energy better, you lose less information and get higher intelligibility. As you can see the range is more sensitive in the second graph than the smoother first graph.

I am sure those among you who are like me and can spend hours on the mobile phone daily would know what I mean when I say that it is hard to pick up emotion while talking on the conventional mobile networks and can become the cause for misunderstandings. I'm really looking forward to this being launched in Pakistan so we can review it. You can find the detailed article in the source link!

Source : Mobile-review