[Users] Need urgent help/pointers reg. Mediaproxy

[Bogdan-Andrei Iancu]

if so, I cannot help you further ...I have no knowledge about MP :(

regards,
bogdan

Dave wrote:

> I did. The RTP stream is flowing from UA To the MP/Port:35774 and from 
> the PSTN GW to the MP/Port:35774. So theoretically MP shold be 
> "proxying" the stream but it is not? What can I do?
> Thanks a lot.
> Dave
>
> */Bogdan-Andrei Iancu <bogdan at voice-system.ro>/* wrote:
>
>     Hi Dave,
>
>     if you already checked the signalling (the ip ans ports in SDP) and
>     everything is fine (all properly mangled for nat), you should make a
>     network trace to see the flow of RTP streams - how ans where is
>     sending RTP.
>
>     regards,
>     bogdan
>
>     Dave wrote:
>
>     > I had posted the following a few days ago and received no response.
>     > Can someone please help!
>     > Hello,I have the following setup:
>     >
>     > UA<->NAT<-->SER/MediaProxy<->Prepaid(B2BUA)<-->PSTNGW
>     > |
>     > IVR
>     >
>     > Nat'd user calls a number that is forwarded (t_relay)
>     > to Prepaid and the user is prompted for
>     > PIN#/Destination Phone# and all works fine. Mediaproxy
>     > is invoked and a mediaproxy port# (35774) is assigned
>     > during the whole process.
>     >
>     > Once the user enters the destination number, the
>     > Prepaid forwards the call to the PSTNGW and the PSTN
>     > phone rings (Call signalling working fine). When the
>     > PSTN phone is answered, no media can be heard!!!
>     >
>     > I did some investigation and here is what is
>     > happening:
>     >
>     > Once the user enters the destination# to dial, The
>     > Prepaid/B2BUA does two things:
>     >
>     > 1) Sends a re-invite to put the UA on hold.
>     > 2) Sends an INVITE to the PSTN GW and retrieves the
>     > SDP from the response from PSTN GW
>     > 3) Sends a second-reinvite to the UA via SER with the
>     > SDP info of the PSTNGW
>     > 4) SER invokes the mediaproxy (since it is reinvite)
>     > and assigns the SAME MEDIAPROXY PORT# as earlier on
>     > when the media was flowing fine (SDP has audio port#
>     > 35774)
>     > 5) SER forwards the re-INVITE TO UA
>     > 6) UA responds with a 200 OK and sends 200 OK to SER.
>     > SER agains invokes mediaproxy and assigns the SAME
>     > MEDIAPROXY PORT# (audio port 35774) and forwards the
>     > response to Prepaid (which sends it to PSTNGW).
>     >
>     > I checked on Cisco PSTNGW that it is creating a
>     > session with the mediaproxy (port:35774). BUT NO AUDIO
>     > CAN BE HEARD IN ANY DIRECTION.
>     >
>     > Can anyone please help? Is this a mediaproxy issue
>     > that when reinvites are sent and mediaproxy is invoked
>     > multiple times, issues arise?
>     >
>     > I am running the latest mediaproxy
>     > version.
>     >
>     >
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