I kinda held off on both of these (posted all over the place) because you need your MSL to do them, and I didn't have mine (Sprint)
Just completed it, figured I would post all the links in one place for everyone. This was tested under Windows XP.
Step 1 - find your MSL (call and ask for it, or use bitpim. I used bitpim)
Download latest Windows version of bitpim
http://www.bitpim.org/
Download drivers and install per:
http://www.ppc6700users.com/forums/v...ic.php?p=20335
After your drivers are installed per the above link (this means your phone is in the right mode and also connected via USB), install BitPim and fire it up.
Manual setup, set serial port to whichever serial port shows up as the one connected to your phone
Follow this
http://ppc6700users.com/forums/viewt...=1640&start=15
from step 19
Basically you're doing that guide above for knoppix, but you're not using knoppix - changes are #17 (you should see which USB serial port to use when you browse) and #18 - don't bother detecting phone)
Anyway all that is just to get your MSL.
Step 2, change Slot Cycle Index and Voice Codec
Now that you have it you can change the Slot Cycle Index - default for the phone is 2, 1 is WAY better - this link says 0 but I'd go with 1 for a while and see how that works out battery-wise
http://www.howardforums.com/showpost...95&postcount=2
Finally change the voice codec used between you and the tower:
http://www.howardforums.com/showthre...hreadid=848041
Only change there is to use your MSL, not 000000, as the unlock code.
Oddly enough, on mine the ROAM (which always sounded better!) was already set to 13k.
After making the above changes your phone will ask to soft reset, and then its good to go.
I test-called myself after the changes, and my phone woke up on the first ring and started ringing on the 2nd ring. Way better. Then I checked voice mail on the phone, and it was also noticably clearer and a bit louder using the phone (I usually use headsets, as the built-in phone speaker is pretty hard to hear!)
Anywhooo nothing new here, just all the links in one place.