Then stop calling it a *proxy*!
It is an SBC.

        Thanks,
        Paul

On 7/18/13 6:28 AM, ikuzar RABE wrote:
> Ok thanks for your responses,
> There is indeed an RTP proxy within the sip proxy... and it works as you
> described above.
>
>
> 2013/7/17 Paul Kyzivat <pkyzi...@alum.mit.edu
> <mailto:pkyzi...@alum.mit.edu>>
>
>     As others have noted, for this to happen the "proxy" (proxies?) needs to
>     modify the SDP to cause this to happen. If it does this it has violated
>     the rules for a proxy. Devices that do this are typically called Session
>     Border Controllers. It is very common. There are both advantages and
>     disadvantages to doing this.
>
>              Thanks,
>              Paul
>
>     On 7/17/13 5:29 AM, ikuzar RABE wrote:
>      > Hi all,
>      >
>      > I saw a RTP flow which is not directly established between UAC
>     and UAS but
>      > goes through a SIP proxy ...
>      >
>      > Is there any information in SIP message exchange producing this
>     situation ?
>      >
>      > Thanks for your help,
>      >
>      > ikuzar
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