[OpenSIPS-Users] Help!! error: use_media_proxy(): empty response from mediaproxy

[Krunal Patel]

Hi,

In reply route, we are detecting that callee is behind NAT or not.
If it is then calling use_mediaproxy.
So in case of public to behind NAT , mediproxy will be used.
Audio is working for that.

But now If I register 1 UAC from public & 2 UAC behind NAT using same
credentials.

Now If I do call from PSTN to that user, openser will send INvite to all
three registered users.
means it will fork INvite.

If the user which is behind NAT pickup the call, not getting audio.
getting error: empty response from mediaproxy when mediaproxy is called from
reply route.

Please advice..

Thanks,
Krunal Patel

On Tue, Dec 16, 2008 at 5:55 PM, Dan Pascu <dan at ag-projects.com> wrote:

> On Tuesday 16 December 2008, Krunal Patel wrote:
> > Hi
> >
> > As request is coming from Public IP , use_mediaproxy is not being
> > called for invite.
>
> So how do you imagine this working? The user behind NAT talks with
> mediaproxy and the user with a public IP talks with whom exactly?
>
> > But callee is behind NAT that's why use_mediaproxy has been called in
> > reply route.
> >
> > One more thing, I have put force_rport at the beginning of main route ,
> > I have removed that & the issue is fixed.
> > but Now facing signaling issue in case internal & external port are
> > different for nated client.
> >
> > Please advice what to do
>
> You need to call use_media_proxy for both the requests and the replies for
> any call you intend to send through mediaproxy.
>
> --
> Dan
>
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