BLISS, there wasn't sufficient interest to progress
the work here.
As you are mainly looking at DND in the context
of presence, I think you may get a better feedback by
posting this question to SIMPLE mailing list.
On Aug 25, 2011, at 9:36 PM, Raphael Bossek wrote:
Dear IETF BLISS,
Just one sentence about me and ESTOS GmbH (http://www.estos.com) , the company I’m working for. I’m looking for a standard compliant solution for instant messaging exchange the “do not disturb”/DND presence information between clients – if possible without introduction of new tags or values. ESTOS GmbH is a software manufacturer for unified communication and collaboration products and depends heavily on standards for interoperability with PBX and phone manufactures.
I’ve studied the RFC 4479 (http://tools.ietf.org/html/rfc4479#page-13) chapter “Reach Information” at page 13: “It is also possible for a presence document to contain a service that has no reach information at all. In such a case, the presentity is indicating that the service exists, but is electing not to offer the watcher the opportunity to connect to it.”