Hello, I am very interested in this discussion. I would also like to see XEP-0080 be extended or a new "Advanced GEOLocation" XEP be written. It is very important that location is correct when using a 911 application on any device using XMPP.
Thanks, Corey Wysong On Mon, Apr 2, 2012 at 5:40 PM, Mark Rejhon <[email protected]> wrote: > Hello, > > I think we need to make an extension to XEP-0080 to be sufficiently > complete enough for use with Emergency Service (9-1-1), which often require > handling of non-circular-shaped estimated location data. (So this is more > advanced than the "circle estimate" you see on map apps on > smartphones). > > According to this IETF draft > Emergency Services Functionality with the Extensible Messaging > and Presence Protocol (XMPP) > http://tools.ietf.org/html/draft-tschofenig-ecrit-xmpp-es-00 > -------- > Location Conveyance: > > The ability to convey a PIDF-LO and a location by reference in > SIP had been defined by [RFC6442]. For a single call there may be more > than one location object in a call. > > While there is a location extensions available in XMPP with XEP-0080 it > is not equivalent to the functionality listed above. XEP-0080 offers a > different civic location format and geodetic location based on a reduced > set of loation shapes. It uses an XML encoding and allows this information > to be conveyed in XMPP. *A table with a mapping to the PIDF-LO semantic > is provided in XEP-0080 but unfortunately since the functionality is not > equivalent to the list presented above there will be a loss of > informationduring the lifecyle of location handling in most of the scenarios. > * > -------- > > Notice the phrase "a loss of information" -- unacceptable in the name of > public safety (i.e. lost in the forest or lost at sea) > > And it will be getting much more complex, with i3 having much more complex > geolocation requirements. My contacts are starting to ask me about an XMPP > specification they can use. Because of the migration to Next Generation > 9-1-1 and Texting-to-9-1-1 (some of which is already being trialled over > XMPP), there is potentially a lot of companies that are going to demand > this in the next few years, including one that I work with. (Note, some > of it is done over SIP, but other trials go over XMPP as shown in the > diagrams in the IETF draft. > > It would thus, be pertinent to extend XEP-0080 in the name of public > safety. > Alternatively, if this is overkill and makes XEP-0080 too complex, then a > separate "XEP-0XXX: Advanced Geolocation" should be made, which could be a > superset of XEP-0080 general purpose geolocation. > > This is actual demand for an actual need. > > Sincerely, > Mark Rejhon >
