[OpenSIPS-Users] Polycom 650 can't Register behind NAT

[Raúl Alexis Betancor Santana]

On Sunday 27 September 2009 04:46:52 osiris123d wrote:
> I am sure this is not a OpenSIPs issue, but I was just wondering if people
> have run into this and what they have done to resolve this.  I currently
> have been testing my OpenSIPs config with Counterpaths Bria client and also
> the SJphone.  They don't have any issues registering behind NAT.  I just
> purchases a Polycom 650 phone and I cannot get it to register.  When I do
> an ngrep I see that the phone is wanting OpenSIPS to talk back to it via
> port 5060.  When I do an ngrep with Bria or SJphone I see that when
> OpenSIPS replies back to the softphone it is not on port 5060.

It's not a matter of on witch port the Polycom listen ... in your ngrep trace, 
the polycom SHOULD ACK the 401 and it isn't do it.

Also ... the 401 should contain challenge information from the proxy and it 
isn't ... so your proxy it's not doing it work well ... our you NAT router 
it's doing some kind of SIP ALG and disturbing the normal working of the 
proxy.

-- 
Raúl Alexis Betancor Santana
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