Finally got rid of the hissing during a call.

[flashpiti]

Try this, it works for me:

Dial ##7764726. (Spells program) Go to "Nam cdma setting" Scroll down to "preferred voice service" (there's 3 entries) Change them all to evrc-b Hit menu and commit changes.

 

[anon(3092520)]

What's the password?

 

[shaddix]

I prefer 13k for louder call

 

[FrankXS]

What's the password?

000000

-Frank

 

[anon(3092520)]

Thanks to both of you. I've applied the change and it definitely improves the call quality. Curious though, how did you find this out?

 

[NotJustAPhone]

Can anyone shed any light on what this change does to improve call quality?

 

[unibolt]

Curious about this too??

 

[swamp]

Yes, hate to make cryptic changes in these hidden menus without some further explanation.

 

[shaddix]

it changes the codec. evrc-b has better noise cancellation than evrc does. evrc uses 8k bandwidth I believe. the 13k uses 13k, and usually sounds better.(at least to me

 

[anon(3092520)]

EVRC-b is newer technology and an enhanced version of ERVC so I'm confused as to why this wouldn't be the default setting to begin with.

Reading other threads, people have made this same change on other Android devices and report improved quality.

 

[shaddix]

EVRC-b is newer technology and an enhanced version of ERVC so I'm confused as to why this wouldn't be the default setting to begin with.

the tower has to support it too, apparently not all the towers do. It will fall back to evrc if not.

 

[anon(3092520)]

the tower has to support it too, apparently not all the towers do. It will fall back to evrc if not.

If it switches automatically, what's the harm in making it the default? I'm almost thinking it's more of an oversight than being an intentional choice.

Now, how about all those other settings? Any other improvements hiding inside that programming menu?

 

[willis936]

I'm also wondering if there's not a hidden biggest of gold in those menus to fix the camcorder audio issue.

Sent from my ADR6400L using Tapatalk

 

[shaddix]

There is no harm.

 

[superlawyer15]

If it uses more bandwidth than that's why it isn't the default ..

Don't forget the golden rule of business

Cost cutting
Cost cutting
Cost cutting

 

[Groucho]

Did this a year ago on my INC and it definitely was an improvement. I live the call quality on my TB as is but this might make it even better. Thanks for posting, I had been looking but couldn't find the procedure in the INC forum from a year ago.

 

[kilofoxtrot]

Did this a year ago on my INC and it definitely was an improvement. I live the call quality on my TB as is but this might make it even better. Thanks for posting, I had been looking but couldn't find the procedure in the INC forum from a year ago.

Use the exact procedure on the INC???

 

[Groucho]

Use the exact procedure on the INC???

Not sure if it is the same number or not but the process is the same. OP's instructions at the top of the thread are clear, concise and work.

 

[swamp]

I've also read that the network "decides" this, not the phone. However, it seems that this functionality must be on the phone side. Maybe VZW's defaults are to maximize total network capacity and this is an option for those who complain about call quality.

 

[FrankXS]

Is it true that the 13K setting is louder?

-Frank