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Issue 5: Options Get a new GRUU from the registrar every time someone calls, with the same contact for each It’s a bit heavy weight While we can correlate users, we lose the ability to store state in the user portion – that is, the registrar chooses the entire URI, instead of the user agent Requires callee to hold on to state between informing caller of availability and caller re-attempting call (so we’ll need to run a timer). Get a new GRUU from the registrar every time someone calls, with a different contact for each, and use the user portion of the contact to store information (taking advantage of proposed loose routing semantics) It’s a bit heavy weight I think it results in incoming calls to the user’s AOR forking off to the user agent multiple times. Add new “cookie” parameter to URI for use with GRUUs. Go back to having GRIDs |