On Wed, Apr 27, 2011 at 1:37 AM, Douglas Hubler <[email protected]> wrote:

> 2011/4/26 Sven Evensen <[email protected]>:
> > We are trying out the Pidgin client for corporate IM. We also want to
> pick
> > up phone presence, at least
> >
> > the users who have proper desk phones. But if a user logs off their IM
> > client (thus showing status Offline),
> >
> > the “On the phone” presence does not work anymore.
>
> someone can confirm this, but I think it's a known issue.  i cannot
> seem to find tracker item though.
>
> I recently tried to figure out how unified presence to was designed
> and it looked very complicated. The openfire plugin had the bulk of
> the code along w/registrar plugin.  Here's part of the puzzle
>
>  http://wiki.sipfoundry.org/display/sipXecs/sipXopenfire+architecture
>
> Having an EXACT value of the EXACT state of a phone/user at all times
> is also incredibly important to many parts of the system.  So it lead
> to conversation about looking into AMQP so various parts of the system
> can help determine a user's state.
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>


The existing design supports the sip dialog-info  (RFC 4235), so it is must
the user desk Phones should support this protocol spec. Without this IM
clients will not able to see the User Phone presence ( On the call/Phone)
states.

This RFC 4235 only provides the call states, it does not provide the user
On-Iine/Off-Line states of desk Phone, which is one of drawbacks with the
existing design. At present the IM clients always see On-Line state, even
when the Desk Phone is not registered towards the sipxecs system. So in
order to implement the User On-Line/Off-Line state, the sipXopenfire server
needs to implement the "reg-info" (RFC-3680) along with the RFC-4235 and
provide the Unified Presence towards the XMPP domain.
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