The problem comes up that the default is 30... the chances are that  
your phone doesn't set the mode= line so we default to 30 when this  
takes place.  Not setting the mode= line in the FMTP usually means  
30ms... which is the default.  So to force this always to 30 you can  
allow i...@30i,  because if you invite to me with 20 and I 200 ok you  
30.. you are to use 30 no exceptions.  Most phones do not obey this  
rule.

/b

On Feb 24, 2009, at 11:28 AM, Alex Gusak wrote:

> Hello.
>
> After upgrade to version 1.0.3 we have a problem with the codec iLBC
> (I think that this is due to the transition to a new ilbc libs 1 week
> ago).
> Very poor quality for calls to the codec iLBC mode=20 (crack in the
> dynamic). iLBC mode=30 works well.
> Tested with phones and Zoiper SJPhone.
>
> After a rollback to the old version of FreeSWITCH 1.0.2 this is not a
> problem, iLBC works fine in both modes (mode = 20 and mode = 30).
>
> What could be the problem?


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