Quote:
Originally Posted by DopeWeasel
How to increase in call volume and voice quality:
Change EVRC Enable to Disable
Change Home Page to Voice 13k
Change Home Orig to Voice 13k
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So what do these changes actually mean? What is EVRC (that we are disabling)? And what are the differences among the various other codec options?
Later Edit: I did some searches on CDMA codecs and found that switching back to the 13K codec is a substantial step downward in audio quality. After doing some (very limited) experimenting, I've settled on SMV as working best on my phone. My home office is in a very weak signal area, and SMV gave me surprisingly good call quality - much better than the default EVRC or (especially) the Voice13K. But I haven't done extensive testing - I'd have to try it in a wide range of circumstances (different signal strengths, different towers, different roaming partners, etc.) to really know which one is best.
Here's some additional info:
http://en.wikipedia.org/wiki/EVRC
The 4GV codecs do not seem to be available on the 6800. And there are some other codec options listed in the 6800 that I haven't tried, though I suspect that they are older technology.