[Freeswitch-users] Can it do it?

[JuanMa]

Saeed Ahmad:

Yes, it can do transcoding. Transcoding isn't the problem to my  
architecture, my problem is the codec negotiation between FS and  
Endpoints.

I want to use FS as SBC (session border controller) or pseudo SIP  
proxy. How i said in my last e-mail FS will work in bypass-media or  
proxy-media in both modes FS doesn't handle media.

I only want the FS handle Codec Negotiation how i described.

Thanks

On 19/06/2009, at 09:08, Saeed Ahmad wrote:

> BTW, what is SWITCH? Can it do transcoding?
>
> On Fri, Jun 19, 2009 at 2:06 PM, Saeed Ahmad  
> <saeedahmad1981 at gmail.com> wrote:
> It seems that you want to transcode G729 which is not possible. You  
> can use it in passthru mode only.
>
>
> On Fri, Jun 19, 2009 at 1:48 AM, JuanMa <juanma.v82 at gmail.com> wrote:
> Hi,
>
> I need to have the hability to negotiate the codec in a session (using
> proxy media or bypass media), unfortunally I've been unable to achive
> this due the documentation that I've found about it's vague.
>
> I've already tried using "absolute_codec_string" and everything that
> says in http://wiki.freeswitch.org/wiki/Codec_negotiation but it seams
> to ignore it  when the media is in "bypass media" or "proxy media". I
> need to configure the FS as a SBC or as a pseudo proxy (I already know
> that FS is not intend to do it, but in the documentation says that it
> can).
>
> I've also tried to manually modify the SDP using:
>  <param name="inbound-late-negotiation" value="true"/>
>
> And updating variables "switch_r_sdp" and "switch_l_dsp" but it also
> seams to ignore it.
>
> Here is the config:
>
> Endpoint1-->FS-->SWITCH-->FS-->Endpoint2
>
> What I need, is to offer to the SWITCH only the codecs defined for
> Enpoint1 (ie. G729) and when the SWITCH send the INVITE to FS again,
> only offer the codecs available for Endpoint2. Eventually the SWITCH
> will do the transcoding.
>
> So, here is my question, is there any way to achive this? (Handle the
> invite codecs in bypass or proxy media), if so, is there any example
> to follow? o can you give a tip?
>
> Thanks in advance,
> Regards
>
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