[OpenSIPS-Users] Basic doubt of sip routing

[Toyima Dias]

create...got it...that means that if i have a phone registered in proxy A,
and i want to call userB, A has no idea where B resides, at all...how does A
know the domain of B? he must put in the RURI of the invite
userB at domain_of_b, right? how does A knows the domain of B? does A must
press in the phone: usearB(a number)@DOMAIN_OF_B?

sorry for many questions, keep reading the rfc...


2011/2/11 Adrian Georgescu <ag at ag-projects.com>

> SIP routing works exactly like email. How did you know to email this list?
>
> Adrian
>
>
>  On Feb 11, 2011, at 1:42 PM, Toyima Dias wrote:
>
>  Thanks Adrian...
> So...how does ALice now that bob is in the biloxi.com domain? per the rfc
> 3263 section 4 (client usage) the ua must use DNS to determine where to send
> a call...but i have a softphone righ now, and i'm trying to make a call like
> this:
>
> 234560 at proxy2.com (inserted by me), not just puting the number....maybe
> i'm saying something crazy, but i'm confuse!
>
>
> 2011/2/11 Adrian Georgescu <ag at ag-projects.com>
>
>> 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<sip%3A264512380973 at 172.30.140.57> 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 <sip%3A264512380973 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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>>>
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