


The current version of the SIP Location Conveyance Specification uses “Content ID” URIs (besides “sip”/”sips”/”pres”) to refer from the new “ Geolocation:” header to a MIME body part, which then contains the location embedded in a PIDF-LO Presence/Location document. An example of that could be location conveyance between contacts in a social network, or applications for “checking in”, such as Gowalla and Foursquare.

This is important for services such as Emergency Services, but can of course be used for any other realtime application that needs to transmit location information in its session setup. A good percentage of phone calls being routed between carriers as of today already uses SIP.įor those reasons, the IETF is looking into ways to embed location information into SIP messages. SIP is the base for telephoney in the upcoming Next Generation networks such as LTE, and a major component of IMS systems. It has gained massive popularity in recent years, and is not just be used in VoIP-Software, but also in Public Branch Exchanges from various vendors, open source products such as Asterisk, Kamailio and a wide range of carrier products. SIP is the IETF’s protocol for establishing Realtime Application Sessions, and is very commonly used for Voice over IP. After the VCARDDAV working group has included “geo:” URIs in their revision of the vCard scheme, the SIPCORE working group is now discussing the use of “geo:” in their “Location Conveyance” draft. “geo:” is getting more attention in other areas of the Internet Engineering Task Force. More details and the actual specification are available here:
#Ceridian your system currently lacks a supported version of the microsoft office web components android
The GeoSMS developers themselves have already created an Android application called “I am Here”. Let’s hope that mobile phone developers implement GeoSMS (and, hence “geo:” URIs) in their future products. It’s nice to see how the design properties of the “geo:” URI (short, simple, human-readable) are the base for another simple and straightforward standard proposal. The proposal got an amazing amount of press coverage, including articles on New York Times, der Standard (german), Times of India, intomobile and various other news sites in the mobile and tech industry.

This was actually a use case that i discussed with several IETF fellows during the development of the geo: URI specification – i’m happy that someone took the effort to write a formal specification. An initiative called “ GeoSMS” proposes the use of “geo:” URIs in text messages (mobile short messages – SMS).
