[asterisk-users] How can I improve call quality?

[Steve Totaro]

If I am not mistaking, g711u is ulaw.  Ulaw and Alaw are the best since 
they are lossless, meaning no compression, they also take up the most 
bandwidth.  Ulaw is the native codec to traditional T1s in the US and 
some other places, ulaw is seen in other parts of the world.  They both 
consume the same amount of bandwidth 64kb plus overhead.

Thanks,
Steve

Adrian Marsh wrote:
> So which is the best quality?
>
> Gradwells www site lists g711u and g729a, but we currently use ulaw/alaw
> with them too..
>
>  
>
> -----Original Message-----
> From: asterisk-users-bounces at lists.digium.com
> [mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Steve
> Underwood
> Sent: 22 April 2007 09:18
> To: Asterisk Users Mailing List - Non-Commercial Discussion
> Subject: Re: [asterisk-users] How can I improve call quality?
>
> Alain Degreffe wrote:
>   
>> Why do you use Ulaw as codec ?
>>
>> Try another codec ( g729 is by far the best but isn't free ).
>>   
>>     
> G.729 isn't the best. Its just the one you need to be compatible with
> the other end. G.729 is the lock-in choice, not the quality choice.
>
> Steve
>
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