![]() ![]() ) request URIs, web pages or mapping protocols. Schooler, “SIP: Session Initiation Protocol,” June 2002. Protocol (SIP) ( Rosenberg, J., Schulzrinne, H., Camarillo, G., Johnston, A., Peterson, J., Sparks, R., Handley, M., and E. General URIs, such as the Session Initiation This URN allows to identify services independent of a particular Third parties and mark certain requests as having specialĬharacteristics while preventing these characteristics to beĪccidentally invoked on inappropriate requests. Also, such identifiers allow to delegate routing decisions to Practical to manually re-configure the device with local emergencyĬontacts for each city or town a user visits with his or her mobileĭevice. Short cuts or buttons that invoke emergency services, as it would not be For example, an IP phone could have a special set of Geographic locations are mapped to service providers.Īvailability of such service identifiers simplifies end systemĬonfiguration. Users can choose different directory providers that in turn manage how On geography as a common way to delineate service regions. While there are many ways to divide provision of such services, we focus Implementation across a large number of service-providing entities. Such global, well-known services, while distributing the actual Resolution protocols beyond the scope of this document, allows to define In this document, we propose a URN namespace that, together with Provide this service, based on jurisdictions.) States rather, various local government organizations cooperate to No national coordination or call center for "9-1-1" in the United Service and a well-defined resolution mechanism. User-visible identifiers, decentralized administration of the underlying These services are characterized by long-term stability of Making accessing such services difficult when users travel or useĭevices produced outside their home country. Identifiers are often used for other purposes outside that region, North American Numbering Plan or the European Union. Unfortunately, almost all of them are limited in scope to a singleĬountry or possibly a group of countries, such as those belonging to the States), lawyer referral services (1-800-LAWYER), car roadsideĪssistance (automobile clubs) and pizza delivery services. Government information services (311 in some cities in the United Repair services (411 and 611 in the United States and Canada), (211 in some regions of the United States),telephone directory and ![]() Regulated monopolies, others by competing commercial enterprises.Įxamples include emergency services (reached by dialing 911 in NorthĪmerica, 112 in Europe), community services and volunteer opportunities Some of the services are operated by governments or In existing telecommunications systems, there are many well-knownĬommunication and information services that are offered by looselyĬoordinated entities across a large geographic region, with well-known Intellectual Property and Copyright Statements Register such context-dependent services that can be resolved in a We describe a 'service' URN that allows to The content of many communication services depend on the context, suchĪs the user's location. Copyright NoticeĬopyright © The Internet Society (2006). This Internet-Draft will expire on September 6, 2006. The list of Internet-Draft Shadow Directories can be accessed at The list of current Internet-Drafts can be accessed at It is inappropriate to use Internet-Drafts as reference material or to cite Internet-Drafts are draft documents valid for a maximum of six monthsĪnd may be updated, replaced, or obsoleted by other documents at any time. Note that other groups may also distribute working documents as Task Force (IETF), its areas, and its working groups. Internet-Drafts are working documents of the Internet Engineering He or she is aware have been or will be disclosed,Īnd any of which he or she becomes aware will be disclosed, Draft-ietf-ecrit-service-urn-01 Status of this MemoĮach author represents that any applicable patent or other IPR claims of which
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