From: "Pars Mutaf" <[EMAIL PROTECTED]>

   The following is a new abstract solution, a third alternative, a protocol
   for "pairing" two cellular hosts:

   Model of operation

   1. The querier user types the target user's "human name" (as if he were
      consulting a phonebook), or a pseudoynm.
   2. The pairing request is forwarded to the target phone.
   3. The query, along with the querier user's name, are displayed on the
      target phone's screen.
   4. The target user approves the request in real-time by pushing on the YES
      button of the phone.
   5. The two phones exchange their Mobile IPv6 home addresses, SIP URIs, and
      establish an IPsec security association (using IKEv2).

How do you make this work?  Step 2 seems to require that you have
already located the target phone, whereas the protocol's *purpose* is
to locate the target phone.

Dale


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