[Freeswitch-users] The Usage of uuid_preprocess && echo cancellation

[Michael Collins]

Do you know what is causing the echo? Is it acoustic echo? Do the endpoint
devices have any echo cancelation abilities?
-MC

2011/4/13 vivid333 <vivid333 at 163.com>

> Hi:
>           1. can any one know the usage of uuid_preprocess?
>           2. according to the FreeSwitch code, this command would add a bug
> to the uuid session, initialize echo parameters, and in functions
> switch_core_session_read_frame/switch_core_session_write_frame do echo
> handle. but  the echo still exist. do any one help me ? thanks..
>
>       Echo Scenes:
>       Telephone 1000, 1001 registered the FreeSwitch, 1000 call 1001, 1001
> answered( two of them are handfree, producing scary sound);
>
> Try Solution:
> Launch the command-line ulility:
> #> fs_cli
> #>: show channels
> uuid1, uuid2
>
> #>:uuid_preprocess uuid1 recho_cancel=true;
> #>:uuid_preprocess uuid2 recho_cancel=true;
>
> but the echo still exist. can any one help me, thanks!
>
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