Subject: [Simple] RE: Event header in the Register request

From: Jonathan Rosenberg <[email-masked]>
Date: Tue, 4 Dec 2001 01:34:09 -0500

> -----Original Message-----
> From: [email-masked] [mailto:[email-masked]]
> Sent: Friday, November 30, 2001 4:18 AM
> To: [email-masked]
> Cc: [email-masked]
> Subject: Event header in the Register request
> 
> 
> Hi all,
> 
> In the Scenario "Presence Server with Client 
> notifications",there isn't 
> an Event header in the Register Request.

REGISTER doesn't use Event header, only SUBSCRIBE.

> I suppose isn't necessary 
> because will be the client to inform the watcher if he 
> support(in which 
> case he send a 200 OK)or not(in which case he send a 489)a particular 
> event,like Presence for example.
> In the Scenario "Presence Server with Server notifications",in the 
> registration phase,i think its mandatory including an Event header, 
> otherwise it is impossible for the server to understand if the 
> registration is for Presence,for example, or other event.

We've discussed this previously. There is no way, when you REGISTER with
caller-preferences indicating support for a method (like SUBSCRIBE) to
indicate packages you support. In such a case, the client would simply
reject subscriptions for packages it didn't support with a 489. SHould this
become a real problem, we could always add a caller preferences parameter
for packages, but I think this is a problem in theory only at this time.

-Jonathan R.

---
Jonathan D. Rosenberg, Ph.D.                72 Eagle Rock Ave.
Chief Scientist                             First Floor
dynamicsoft                                 East Hanover, NJ 07936
[email-masked]                     FAX:   (973) 952-5050
http://www.jdrosen.net                      PHONE: (973) 952-5000
http://www.dynamicsoft.com
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