[OpenSIPS-Users] Basic doubt of sip routing

[Adrian Georgescu]

The SIP proxy lookups up the domain part, what appears after the @ sign before any parameters separated by ; if is an IP address like in your example you do not perform a DNS lookup you just send the packet there. 

In the request URI you must put the address of the remote end, not your own address. In your example user A calls user 264512380973 on the same Proxy and not a remote one.

See the illustrated examples from:

http://www.tech-invite.com/Ti-sip-ex3261.html

Adrian

On Feb 11, 2011, at 1:17 PM, Toyima Dias wrote:

> Adrian, i'm checking the rfc...but even i have a question...when UA sends an INVITE to it's proxy to a phone for example (obviously not registered on the proxy), the proxy will check the RURI of this invite and it will se the following:
>  
> user A sends the invite to its proxy : INVITE sip:264512380973 at 172.30.140.57;transport=UDP SIP/2.0 (172.30.140.57 is the IP of proxy A)
> 
> Where does the DNS takes part? the domain is it's ip address...i'm quite confuse, any help would b e appreciated
>  
> Thanks
> 
> 
> 2011/2/11 Toyima Dias <toyimads at gmail.com>
> Thanks Adrian...reading the RFC3263!
>  
> Thanks!
> 
> 
> 2011/2/11 Adrian Georgescu <ag at ag-projects.com>
> 
> The proxy is using DNS to lookup the destination server.
> 
> Google for RFC 3263
> 
> Adrian
> 
> 
> On Feb 11, 2011, at 10:19 AM, Toyima Dias wrote:
> 
>> Hello community,
>>  
>> I have a doubt, how does a SIP Proxy (OpenSIPS) would handle a call for a domain that he doesn't now? i mean...user A is registered in proxy AA, if A wants to call to another user in another domain (not registered in the Proxy AA) how does this proxy should handle the call? how does he now where to send this call?
>>  
>> Any clarification would be appreciated :)
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> 
> 
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