[Freeswitch-users] Proxy Media and Codec Prefer

[Nyamul Hassan]

Interesting.  In proxy media, FS is in the middle of the media transfer, and
one would think that such was possible in such situations.

In contrast, when you are not acting as a media proxy, there is little on
what media the end points can negotiate among themselves.

There must be some logical reasoning that I fail to understand here.

Regards
HASSAN



On Mon, Aug 2, 2010 at 14:01, Steven Ayre <steveayre at gmail.com> wrote:

> Yes, don't use proxy media. Use absolute_codec_string as you already were
> to enforce it.
>
> There is no way if you're using proxy media.
>
> -Steve
>
>
>
> On 2 August 2010 08:23, Nyamul Hassan <mnhassan at usa.net> wrote:
>
>> Thank you for the explanation Steven.  However, if we see that there is a
>> common codec, say G729, and we want to make sure that the call gets
>> connected on G729, is there any way to enforce this?
>>
>> Regards
>> HASSAN
>>
>>
>>
>> On Mon, Aug 2, 2010 at 12:44, Steven Ayre <steveayre at gmail.com> wrote:
>>
>>> In proxy media mode FS will pass media straight through without any
>>> processing. It won't do any transcoding or any SDP modifcation, so it can't
>>> transcode PCMU <-> G729 and absolute_codec_string will be ignored - it'll
>>> just pass the codec settings straight through from the A leg to the B leg.
>>>
>>> So it's expected behaviour.
>>>
>>> -Steve
>>>
>>>
>>>
>>>
>>> On 2 August 2010 04:55, Dome Charoenyost <dome at tel.co.th> wrote:
>>>
>>>> Dear All,
>>>>        I'm not sure it's bug or not ?
>>>> I try to test codec  negotate. with 3 FS box
>>>> FS1 send PCMA to FS2 and FS2 send G729 to FS3
>>>>
>>>> FS1 -----> [PCMU] ----> FS2 ------> [G729] -------> FS3 (10.20.2.49)
>>>> My dialplan
>>>> <action application="bridge"
>>>> data="{absolute_codec_string='G729'}sofia/internal/2222 at 10.20.2.49:5080
>>>> "/>
>>>> It's work fine
>>>> When i try
>>>> <action application="set" data="proxy_media=true"/>
>>>> <action application="bridge"
>>>> data="{absolute_codec_string='G729'}sofia/internal/2222 at 10.20.2.49:5080
>>>> "/>
>>>> Call fail. because FS2 ignore absolute_codec_string='G729' and send
>>>> only  PCMU  (I think by pass from FS1)
>>>>
>>>> It's bug or not ?
>>>>
>>>> Dome C.
>>>>
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