On 1/27/2011 12:39 PM, Matthew Kitchin (public/usenet) wrote:
On 1/27/2011 12:27 PM, Matt White wrote:
>>> "Matthew Kitchin (public/usenet)" <[email protected]>
01/27/11 12:34 PM >>>
>>I think I see where the problem occurs in the sip trace, but I don't
>>have the sip knowledge to understand why.
>>
>>Any help would be greatly appreciated.
Ok, I've reviewed your traces and your wiresharks. You've got some
serious issues here.
First, It doesn't seem to be the sip trunk provider not liking the
codec. The trunk does successfully go from G.729 to G.711 for the
MoH. And the MoH can be heard in the wireshark RTP.
But here is the big issue. Your phone is sending the reinvite for
MoH or transfer directly to sipxbridge.
Sipxbridge freaks and says "Request not sent by proxy".
I can shed some light on that I think. Verizon required they send us
calls on port 5060. We do nat the port to 5080. We hadn't seen any
issue there, but I guess we have now for some reason.
Verizon --5060-- our router -- 5080 --> sipx
Obviously some of the call setup info is still going to have 5060 in
it. Would that explain why this might be happening?
Replying back to myself here. I'm not sure if this would cause a problem
or not. sipxbridge is listening on 5080, right? I have no idea what
would make the phones contact it on 5080. They are on the same subnet as
the server, and no router in between.
Definitely not a second NIC.
DNS is pretty simple. It is a fresh sipx install with sipx handling the
DNS. We have 5 deployed systems, and they are all acting the same.
The Polycom profile is completely generated and managed by sipx.
There are no settings at all on this group except codec order.
Why would changing the settings in sipxbridge seem to fix the issue?
Your phone should never be sending a reinvite bypassing the proxy.
It should be sending a refer to the proxy and it sends it to
sipxbridge which then reinvites the trunk.
I have seen this in two scenerios
1. You have a second nic in sipx
2. Your DNS is wrong.
I'd start there. Beyond that I'd think you have somthing wrong in
your phone profiles. You could take a phone to factory defaults and
generate a fresh profile that is not part of any phone group that may
have some goofy settings.
-M
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