Review: Samsung Galaxy S III
AT&T vs. T-Mobile
My bet, as far as voice quality is concerned on the AT&T vs. T-Mobile comparison, is that the reviewer was seeing limitations of AT&T's network rather than of the phone itself.
You see, AT&T has for quite awhile chosen to use AMR-HR (Half Rate) as its vocoder, at least on its GSM network, and I wouldn't be surprised if that carried over onto HSPA. In contrast, T-Mobile uses AMR-FR. Double the bits means MUCH better audio quality on T-Mobile than AT&T.
Because if this, my bet is that Sprint's GSIII will also sound better than AT&T's, on par with T-Mobile. Verizon's will be pretty close.
You see, AT&T has for quite awhile chosen to use AMR-HR (Half Rate) as its vocoder, at least on its GSM network, and I wouldn't be surprised if that carried over onto HSPA. In contrast, T-Mobile uses AMR-FR. Double the bits means MUCH better audio quality on T-Mobile than AT&T.
Because if this, my bet is that Sprint's GSIII will also sound better than AT&T's, on par with T-Mobile. Verizon's will be pretty close.
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