Re: francois' comments and why RFC4474 not used in the field

Paul Kyzivat <[email protected]>
Newsgroups gmane.ietf.sip
Message-ID <[email protected]>

Dan Wing wrote:
>  
> 
>> -----Original Message-----
>> From: Dean Willis [mailto:[email protected]] 

>> But the transit ISP should be routing the packets using their source  
>> and destination IP addresses, not mucking about in the application  
>> protocol.
> 
> The transit SIP provider has every interest in hiding the IP addresses
> of their own equipment and of the actual peers.  Otherwise, the peers
> may make their own business agreement and circumvent the 'service'
> being provided by the transit SIP provider -- or so the argument 
> goes.

If the peers can circumvent the SP and make their own business 
agreement, then perhaps the SP wasn't actually providing a service.

	Paul
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