Re: [sipx-users] media through NAT problems
On Wed, Aug 20, 2008 at 4:40 AM, Dean Hiller <dean@xxxxxxxxxxxxx> wrote:
> oh so close. So, my phone is now registering, but media is not
> connecting(and I do know why but would like verification that this is not
> fixable????).
>
> I run wireshark and I see the first few sdps from sjphone to sipx telling it
> to send media to 192.168...so then I look for the stun setting and then all
> is well and sipx now sends media to the right ip BUT the wrong port. The
> sdp in the sip invite is telling
> sipx to send the media to port 41598 while the media is coming out of the
> router at 50123 so naturally, I don't get any media coming back to me
> here(Is there any fix for this?
Set up your router for symmetric port mapping.
I mean a stun server can only look at the
> ip address, by the time sjphone talks to sipx, the port has changed so that
> info is useless in stun. Is there any way to get sipx to send the media
> straight back to where it is coming from instead of using the sdp to do
> so???? or is there as I suspect no fix for this and I am screwed and my
> phone must be on the WAN?
> thanks,
>
> --
> Dean Hiller
> CEO/Founder of Extreme Software Offshoring
> http://xsoftware.biz
> http://www.linkedin.com/in/deanhiller
> Beijing Cell: 136-991-41547
> US Phone: 303-376-5776
>
>
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--
M. Ranganathan
