Also, the author doesn't realize (or maybe never noticed?) that modern handsets support wideband codecs, often marketed as "HD Voice," that offer far superior a

Also, the author doesn't realize (or maybe never noticed?) that modern handsets support wideband codecs, often marketed as "HD Voice," that offer far superior audio than any landline. On the other hand, there seems to be little interoperability between carriers, at least in the US. Even though all of the major networks support it between their own customers, none of them enable it between carriers.