[OpenSIPS-Users] trying from different source port

[Bogdan-Andrei Iancu]

Hi Josip,

AFAIK, the signalling may be asymmetric (on both sides), but this may 
break a lot of things at network level - NAT, firewalls, etc.

Regards,
Bogdan

Josip Djuricic wrote:
>
> Hi,
>
>  
>
> I have a question, it's more a theoretical question.
>
>  
>
> If the invite is sent to port 5060, would rfc allow responses to come 
> from different ports?
>
>  
>
> Ie..
>
>  
>
> Invite (src port 36000, dst port 5060) --- >
>
>                                                                               
>                 < --- 100 Trying (src port 5060, dst port 5060)
>
>                                                                               
>                 < --- 100 Trying (src port 37039, dst port 5060)
>
>                                                                               
>                 < --- 183 Progress SDP (src port 37039, dst port 5060)
>
>                                                                                               
> < --- 200 OK SDP (src port 37039, dst port 5060)
>
>  
>
>  
>
> Best regards,
>
>  
>
> Josip
>
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>
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-- 
Bogdan-Andrei Iancu
www.voice-system.ro