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

Schneur Rosenberg rosenberg11219 at gmail.com
Thu Sep 22 00:12:42 CEST 2011

If the packet would of reached asterisk then you might of been right,
problem is a ngrep trace does not show a single packet reaching it.

On Thu, Sep 22, 2011 at 1:09 AM, Brett Nemeroff <brett at nemeroff.com> wrote:
> On Wed, Sep 21, 2011 at 5:03 PM, 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 ( 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...)
> I think asterisk does reply to the contact header and they are obviously
> different in the two traces. You'll see one is port 5060 and the other is
> based on some NAT translation. Need to find out why those are different..
> -Brett
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