HIDDEN MENU: Audio EVRC (default option) to EVRC-B

t's in the Programming menu. Use the Programming Menu at your own risk. There are options/settings in this menu that should not be manipulated. That's my disclaimer  
On your dialpad dial ##PROGRAMthen press SEND

The SPC password is 000000

Now you should be at the Programming Menu. From the list press "04 Vocode"

Now you can select 13k, EVRC (default option), or EVRC-B

After you select one, back out to your home screen and your phone will reset.

That's it.

Keep in mind, I don't really understand why EVRC-B isn't already the default option on this phone. There may be a good reason. There may not. Hopefully someone from Verizon or Motorola will chime-in and answer my original post.

  Changed Subject Title to clarify Topic and moved to Hidden-Menu Discussion.

I was searching the net for additonal information and found...

I am not from Motorola but I can tell you that EVRC is chosen as default as most of the USA already uses EVRC.  In some markets (don't know the number so I am stating some) like Atlanta they have EVRC-B set as preferred at the switching center.

So regardless of what your phone is set at it will make the call in EVRC-B.   However, if you change your phone to EVRC-B and you go to a market which does not yet support EVRC-B then your not going to be able to make calls at all. So I caution those that make the setting to EVRC-B.

More information can be found on Droid Speech Quality (EVRC, EVRC-B, and 13K).