Subject: [Simple] Request to clarify doubt in RFc 4479

From: vinay anvekar <[email-masked]>
Date: Tue, 22 Apr 2008 09:50:39 +0530 (IST)

In the RFC 4479 (A Data model For Presence)section below it is said that the Presentity can have multiple URIs. 

But however as an End user i might not know about the protocol used by the device/client software i am using to access the service  in 
that case is it the responsibility of the client software to actually prepend and/or append the neccessary 
protocol related identifiers to whatever User enters as his Login ID during authorization to use the service ?

3.1.  Presentity URI

   The
 identifier for the presentity is a URI.  For each unique
   presentity in the network, there is one or more presentity URIs.  A
   presentity may have multiple URIs because they are identified by both
   a URI from the Presence (pres) scheme [12] and a protocol-specific
   URI, such as a SIP URI [11] or an Extensible Messaging and Presence
   Protocol Internationalized Resource Identifier (XMPP IRI) [13].  Or,
   it can be because a user has several aliases in a domain, all of
   which are equivalent identifiers for the presentity.

Kindly pardon me if it sounds naive.

Best Regards,
  Vinay G. A.

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