Pars:
This is sounding like it's less and less a SIP problem at all. Based on
what you say below, I think all you need is some additional vCard fields
(one for voice SIP URIs, and maybe one for home IPv6 addresses -- but
I'd pursue these as separate efforts, if I were you). You can then send
these vCards around in OBEX, email, web pages, or whatever else makes
sense. Note that OBEX over Bluetooth, IrDA, and/or SMS completely
satisfies the requirements you describe below -- and these are already
well-defined, mature, and widely deployed technologies.
Look at RFC 4770 to see how vCard extensions look.
/a
Pars Mutaf wrote:
On 10/12/07, *Spencer Dawkins* <[EMAIL PROTECTED]
<mailto:[EMAIL PROTECTED]>> wrote:
> The privacy problem: normally I shouldn't be able to discover
your SIP URI.
I'm guessing that if you can't tell people your SIP AOR, then SIP
is not for
you.
Hello,
I won't publish my SIP URI in a phone book allowing anyone to see it.
We already agreed on that.
I'll tell it to people that I know only. I'll tell it using a user
friendly
mechanism called "pairing" : We meet each other with our cell phones,
and agree to exchange our contact information. So, the procedure is
under our control. Pairing is good for us also because it allows us to
exchange a secret key (note that this is already enough motivation for
the pairing idea).
The point is that, if I give you my SIP URI (using the pairing procedure)
then I can also give you my Mobile IPv6 home address using the same
pairing procedure. In other words, there is _no more resolution_ from
SIP URI to home IP address. You get them **concurrently**.
We have each other's SIP URIs and home addresses.
->SIP application is happy, it has the target SIP URI.
->Routing problem is solved by mobile IPv6.
My question was: do we need the SIP trapezoid in this case.
Thanks,
pars
Thanks,
Spencer
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