[Freeswitch-users] SIP users

[David Knell]

Hi Brian,

I'm talking phones registering with FreeSWITCH, and how calls are routed 
to them.
I'll sit on the IRC channel for a bit - give me a shout if you've a moment.

Cheers --

Dave

> Are you talking inbound or outbound registrations from FreeSWITCh or  
> to FreeSWITCH?
>
> /b
>
> On Dec 26, 2007, at 9:47 AM, David Knell wrote:
>
>   
>> Brian West wrote:
>>     
>>> On Dec 26, 2007, at 8:02 AM, David Knell wrote:
>>>
>>>
>>>       
>>>> Less wordily, any user can get any other user's calls by changing
>>>> their SIP username
>>>> to match that user's.
>>>>
>>>>         
>>> How can they do that if auth calls is turned on?  If you have blind
>>> reg on then sure someone could.
>>>
>>>
>>>       
>> They can do it because their SIP username is not necessarily the  
>> same as the name
>> used for authentication, and its the SIP username that's used for  
>> call routing.  Here's a bit
>> of a REGISTER:
>>
>> Via: SIP/2.0/UDP 192.168.0.103:42074;branch=z9hG4bK- 
>> d8754z-894af021546db132-1---d8754z-;rport
>> Max-Forwards: 70
>> Contact: <sip:sipusername at 75.71.186.17:42074;rinstance=65c73083353adf9d 
>>     
>>> ;expires=0
>>>       
>> To: "sipdisplayname"<sip:sipusername at 78.129.143.200>
>> From: "sipdisplayname"<sip:sipusername at 78.129.143.200>;tag=b2127143
>> Call-ID: NjY0MmU5ZjhhMTJhZmFlYWJhMmM4MDY3NTVjZjlkYWI.
>> CSeq: 3 REGISTER
>> Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, NOTIFY, MESSAGE,  
>> SUBSCRIBE, INFO
>> User-Agent: eyeBeam release 1013t stamp 43070
>> Authorization: Digest  
>> username="sipauthname",realm="78.129.143.200",nonce="2da9c5ae- 
>> b512-11dc-92d4a9bf24bac484",uri="sip: 
>> 78.129.143.200 
>> ",response 
>> = 
>> "c13fe382888ec016e234595b608caab0 
>> ",cnonce="780c520efb22fe9fdf270fd8cd5e2a28",nc=00000002,qop=a
>> Content-Length: 0
>>
>> - note that sipdisplayname, sipusername and sipauthname are all  
>> distinct.
>>
>> --Dave
>>
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>>     
>
>
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>   


-- 
David Knell, Director, 3C Limited
T: 020 8114 8901  F: 020 8692 0677  M: 07773 800623
http://www.3c.co.uk 

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