Presence and IntComm WG

[(Dennis Baron)]

Thanks to the pointer to simple-presence-data-model - I will have to read 
that.

> To answer your question about the Refresh Interval on EyeBeam, that 
> variable indicates how long you want your subscription to the presence 
> agent to last.  I would like to see EyeBeam produce an error message 
> when the subscription expires and you then try to update your contact 
> list or your own presence, but I don't think it's a requirement to 
> automatically resubscribe.  I think that's a privacy issue.

So I looked at the eyeBeam logs and see that it sends:

     PUBLISH 
sip:
 SIP/2.0
     Event: presence
     Content-Type: application/pidf+xml

And then sends:

     SUBSCRIBE 
sip:
 SIP/2.0
     Event: presence.winfo
     Accept: application/watcherinfo+xml

And receives back:

     NOTIFY 
sip::10068
 SIP/2.0
     Event: presence.winfo
     Subscription-State: active;expires=3611

Does that seem right to people?

A couple things that I see that are odd.

1) The initial SUBSCRIBE goes to 
sip:
 -
   but later ones all seem to go to 
sip:
 - why
   does the client change the domain?

2) It looks like the PUBLISHes continue during the session but it
   looks like the client does stop sending SUBSCRIBEs at one point.

But it looks to me that these do try to renew themselves before they
expire - so I don't think there is a "feature" that they don't renew
automatically.

But the bottom line is - I need help inderstanding what the flows are
_supposed_ to be.  Anybody want to do a quick tutorial for some of us
presence newbies - Jamey?

Also, I think it might be nice to add authentication back in pals-dev.
And also relax the maximum REGISTER time - why are we limiting it to
10 minutes?

                        Dennis