[OpenSIPS-Users] Sip invite sent, not reaching dest from certain phones

[Schneur Rosenberg]

both systems are on the open internet, I have no firewalls etc on any
of the systems, I will try another 2 systems with same configurations
and see what happens.

On Thu, Sep 22, 2011 at 1:24 AM, Vallimamod ABDULLAH
<vallimamod.abdullah at imtelecom.fr> wrote:
> Then you have any intermediate device (known or unknown) that does filtering or mangling in some way…
> Try to trace the sip packet on every hop between the 2 servers to see how far it goes.
>
> Regards,
> - vma
> .
>
> On Sep 22, 2011, at 12:07 AM, Schneur Rosenberg wrote:
>
>> The packet does not reach asterisk, I did a ngrep on the asterisk
>> server and not a single packet arrives from the opensips when using
>> the Aastra phone, therefore its not sending back anything, the
>> asterisk CLI is also quiet nothing whatsoever :-(
>>
>> On Thu, Sep 22, 2011 at 1:03 AM, Vallimamod ABDULLAH
>> <vallimamod.abdullah at imtelecom.fr> wrote:
>>> Hi Schneur,
>>>
>>> What do you mean precisely by never hitting the asterisk server ?
>>> As your ngrep trace shows, both packets are sent over the wire to the exact same address (68.233.222.9:5060) so they should both reach Asterisk. But it's possible that the latter doesn't treat them the same way, depending on nat issues most of the time (Asterisk send replies to the contact header URI by default if I recall correctly...)
>>>
>>> Try to make a ngrep trace on the iface attached to 68.233.222.9 and check if Asterisk does not send the answer to a different IP. Also enable the debug log on the asterisk console to spot any error / warning messages or sip retransmissions.
>>>
>>> Hope this would help.
>
>
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