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. Enhanced Variable Rate Codec - Wikipedia, the free encyclopedia Enhanced Variable Rate Codec B - Wikipedia, the free encyclopedia Posted by SOOBS on Moto forum! thank him!