WO2005025181A1 - Method for supporting presence based services - Google Patents

Method for supporting presence based services Download PDF

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Publication number
WO2005025181A1
WO2005025181A1 PCT/EP2004/051907 EP2004051907W WO2005025181A1 WO 2005025181 A1 WO2005025181 A1 WO 2005025181A1 EP 2004051907 W EP2004051907 W EP 2004051907W WO 2005025181 A1 WO2005025181 A1 WO 2005025181A1
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WO
WIPO (PCT)
Prior art keywords
subscriber
pstn
information
server
presence information
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Application number
PCT/EP2004/051907
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German (de)
French (fr)
Inventor
Stefan Unger
Original Assignee
Siemens Aktiengesellschaft
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Publication date
Application filed by Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Priority to EP04766600A priority Critical patent/EP1673925A1/en
Publication of WO2005025181A1 publication Critical patent/WO2005025181A1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00—Network arrangements, protocols or services for addressing or naming
    • H04L61/09—Mapping addresses
    • H04L61/10—Mapping addresses of different types
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00—Network arrangements, protocols or services for addressing or naming
    • H04L61/45—Network directories; Name-to-address mapping
    • H04L61/4535—Network directories; Name-to-address mapping using an address exchange platform which sets up a session between two nodes, e.g. rendezvous servers, session initiation protocols [SIP] registrars or H.323 gatekeepers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/50—Network services
    • H04L67/54—Presence management, e.g. monitoring or registration for receipt of user log-on information, or the connection status of the users
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/30—Definitions, standards or architectural aspects of layered protocol stacks
    • H04L69/32—Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
    • H04L69/322—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions
    • H04L69/329—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions in the application layer [OSI layer 7]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/42025—Calling or Called party identification service
    • H04M3/42085—Called party identification service
    • H04M3/42093—Notifying the calling party of information on the called or connected party
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/42365—Presence services providing information on the willingness to communicate or the ability to communicate in terms of media capability or network connectivity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M7/00—Arrangements for interconnection between switching centres
    • H04M7/0024—Services and arrangements where telephone services are combined with data services
    • H04M7/0036—Services and arrangements where telephone services are combined with data services where the data service is an information service
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M7/00—Arrangements for interconnection between switching centres
    • H04M7/12—Arrangements for interconnection between switching centres for working between exchanges having different types of switching equipment, e.g. power-driven and step by step or decimal and non-decimal
    • H04M7/1205—Arrangements for interconnection between switching centres for working between exchanges having different types of switching equipment, e.g. power-driven and step by step or decimal and non-decimal where the types of switching equipement comprises PSTN/ISDN equipment and switching equipment of networks other than PSTN/ISDN, e.g. Internet Protocol networks
    • H04M7/128—Details of addressing, directories or routing tables
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W60/00—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/26—Network addressing or numbering for mobility support

Definitions

  • Network operators and independent service providers are increasingly interested in convergent services based on presence information.
  • Network operators and service providers are constantly looking for innovative value-added services that open up new market potential and enable differentiation from the competition.
  • Presence-based services are becoming increasingly popular due to the spread of the SIP standard [1,2] in telecommunications networks and the spread of SIP-capable personal computer software clients (Microsoft Windows XP including the so-called messenger should be mentioned here in particular).
  • SIP standard [1,2] in telecommunications networks
  • SIP-capable personal computer software clients Microsoft Windows XP including the so-called messenger should be mentioned here in particular.
  • Presence server a special server in the IP network (so-called presence server) primarily collects the information about which IP subscriber can currently be reached at which end device or under which IP address. For this purpose, the respective IP subscribers send special messages, ie messages with presence information to the presence server. Servers that want to use the presence information of certain subscribers for new value-added services can query this from the presence server [5,6]. Examples of presence-based services are instant messaging (exchange of chat messages as soon as a certain IP participant is online) or instant conferencing (setting up a telephone or video conference as soon as the desired IP participants are online).
  • IP network functions in the IP network are linked to functions in PSTN networks, such as the initiation of a PSTN call via a web page ("click-to-dial") or the initiation and Control of a conference in the PSTN via a web page.
  • PSTN Next Generation Networks
  • NTN Next Generation Networks
  • Pres-called Pres-based services have only been offered for IP subscribers, ie it is assumed that the subscriber has an IP-capable device - for example a Java-enabled mobile device or a PC with Microsoft Messenger - which allows him to do so using a SIP-based protocol to transmit its presence information. So far, only a presence URI has been accepted as the contact address or identification address under which the IP subscriber can store his presence information [3, 4].
  • a PSTN subscriber or IP subscriber it is now possible for a PSTN subscriber or IP subscriber to be able to transmit so-called "presence" information via a standard telephone terminal that is common today, and thus to be able to indicate that he is currently
  • Convergent presence-based value-added services are typically based on servers in the IP network, which can control or influence connections via suitable interfaces to switching units (these can also be referred to as switching servers).
  • FIG. 1 shows an exemplary network architecture according to the invention:
  • the network architecture shown is based on an IP-based network.
  • the components have the following functions or tasks:
  • a presence server enables an IP subscriber to register presence information, i.e. the storage of information as to whether the IP subscriber is currently reachable or not.
  • IP subscriber can also provide additional information, e.g. Mood ("wants to be left alone", “look forward to messages") or brief information ("I can only be reached in 1 hour”.)
  • a service server contains the service logic for a value-added service. It has a suitable interface to a switching unit that allows connections to be controlled. He also has an interface (eg SIP-based) to a presence server, via which he can query the presence information of certain IP users. He can via another interface to the switching unit For example, control the establishment of a connection between IP subscribers with the presence information "subscriber is currently online and available".
  • a switching unit that allows connections to be controlled. He also has an interface (eg SIP-based) to a presence server, via which he can query the presence information of certain IP users. He can via another interface to the switching unit For example, control the establishment of a connection between IP subscribers with the presence information "subscriber is currently online and available".
  • the IP subscriber terminals e.g. a multi-media PC, have a suitable interface (e.g. SIP based) to transmit their presence information to the presence server. Call control and voice transmission is also IP-based.
  • a switching unit controls the connection establishment for the assigned IP subscribers. It also contains components for speech dialogues or conferences.
  • Traditional PSTN participants can be included via a gateway. The gateway can of course also be integrated in the switching unit.
  • a PSTN subscriber has a standard PSTN telephone. The participant is therefore only able to use a simple voice connection.
  • the invention makes it possible for the PSTN subscriber to be able to transmit presence information (for example "subscriber can now be reached under telephone number xyz") to the presence server.
  • This is achieved in that the switching unit transmits presence information for a subscriber to a presence server instead of a PSTN subscriber.
  • the switching unit obtains the relevant information from the PSTN subscriber, for example by means of special subscriber signaling or by means of an interactive voice dialog with the PSTN subscriber, and then sets this information on an IP-based protocol [3, 4] for the presence server understandable format.
  • the switching unit then transmits the information formatted in this way to the presence server.
  • the switching unit itself however, this is only the protocol endpoint from the perspective of the presence server and not the actual PRESENTITY.
  • the actual PRESENTITY is the PSTN participant.
  • a switching unit acts towards the presence server on behalf of many PSTN participants.
  • the switching unit obtains the relevant information using an interactive voice dialog with the PSTN subscriber
  • the switching unit controls the voice-controlled dialog using an announcement unit and thus collects the relevant information from the PSTN subscriber.
  • the switching unit transmits presence information to the presence server in the name of the PSTN subscriber via an IP-based interface (e.g. SIP-based).
  • IP-based interface e.g. SIP-based
  • the presence server thus also receives presence information from a PSTN subscriber, which is then from one
  • Service server can be evaluated and taken into account for services.
  • the method according to the invention therefore allows a PSTN subscriber to also store presence information with the presence server, specifically via the switching unit.
  • the contact or identification address for the presence information must be an E.164 telephone number, because only under this can the PSTN subscriber be reached.
  • the method according to the invention also makes it possible to store a contact address as a PRESENTITY for a PSTN subscriber at the presence server, the normal E.164 telephone number being used as the contact address. However, this presupposes that the Presence Server can treat E.164 numbers as contact addresses. This can be taken into account in the context of standardization or implemented in a proprietary manner.
  • PSTN subscribers can also use presence-based services. This is not possible with the current state of the art.
  • the presence information based on an E.164 number is not limited to the exclusive use for PSTN participants. It can also be used as an optional addition to the URI-based contact addresses previously discussed in the IETF. Based on a current status indication, the PRESENTITY could then indicate that it can currently only be reached via the registered E.164 address.
  • the method according to the invention increases the attractiveness of a presence-based service by integrating PSTN subscribers.
  • the presence data are transmitted by means of a voice dialog, the following additional advantages result.
  • the PTSN subscriber can transmit the presence information from any telephone (landline or mobile phone). (Prerequisite: The switching unit allows the update of presence information • regardless of the subscriber CLI (Calling Line Identity)) • For the network operator (if not the same service provider)
  • the method according to the invention generates additional conversation volume through the speech dialogues.
  • the announcement unit for realizing the voice dialogue can either be integrated in the switching unit or be connected or controlled separately via suitable interfaces.
  • the control logic for controlling the announcement unit can either be integrated in the switching unit or on a separate server, e.g. on an IN SCP (Intelligent Network Service Control Point).
  • IN SCP Intelligent Network Service Control Point
  • the switching unit performs an automatic authorization check on the CLI of the PSTN subscriber, the function can only be carried out from the home terminal. If such a check is not carried out, but the authorization check is carried out on the basis of information which is queried by means of a voice dialog, the PSTN subscriber can use any fat network / mobile terminal.
  • the service server and the presence server can be physically integrated or separated.
  • An example of application of the invention to the presence-controlled “instant conference service” is shown below with the aid of FIG. 2.
  • the interfaces shown here for presence (here: registration, query) and call control for IP users are SIP-based. It is assumed that this is currently The specifications discussed in the IETF SIMPLE Working Group are based [3, 4, 5, 6]
  • the function of the "Instant Conference Service” is to automatically set up a voice conference between several participants as soon as they can be reached. Accessibility is determined on the basis of presence information that the instant conference server learns from a presence server.
  • a conference is to be set up between the two SIP participants 1 and 2 and the PSTN participant as soon as all participants can be reached.
  • the two SIP participants have a multi-media PC with a SIP client. This enables you to set up IP-based voice and video connections as well as exchange presence information with a presence server.
  • the PSTN subscriber only has the option of a voice connection.
  • the two SIP participants update their presence information directly via their client software in the presence server.
  • the PSTN subscriber dials a special service number that connects him to the switching unit. He is authorized to use voice-controlled presence information transmission. In this application example, this authorization should be based on the CLI.
  • the switching unit / announcement unit uses voice dialogue to determine that the subscriber is now available under his home connection. This information is converted into a SIP-based protocol and sent from the switching unit to the presence server. det. As soon as the instant conference server learns (options:
  • Presence Server reports status changes or the service server periodically queries) that the required PSTN subscriber can be reached, he starts the conference call. This is done using a suitable protocol between the instant conference server and the switching unit.
  • the PSTN subscriber is integrated using a voice connection. Depending on the client options, a parallel video connection via IP would also be possible between the two SIP subscribers.

Abstract

The aim of the invention is to enable a PSTN subscriber or IP subscriber to transmit presence information by means of a normal standard telephone terminal and to also indicate that he can be reached at this time by means of a specific standard telephone terminal. Said problem can be solved with the aid of a telephone exchange device.

Description

Beschreibungdescription
Verfahren zur Unterstützung von Presence-basierten DienstenProcedures to support presence-based services
Es besteht ein immer stärker wachsendes Interesse der Netzbetreiber bzw. unabhängiger Diensteanbieter an konvergenten Diensten, die auf Presence-Informationen basieren. Netzbetreiber bzw. Diensteanbieter suchen ständig nach innovativen Mehrwertdiensten, die neue Marktpotenziale eröffnen und eine Differenzierung zur Konkurrenz ermöglichen. Dabei werden Presence-basierte Dienste zunehmend durch die Verbreitung des SIP Standards [1,2] in Telekommunikationsnetzen sowie die Verbreitung von SIP-fähigen Personal-Computer-SW-Clients (hier ist insbesondere Microsoft Windows XP inklusive des so- genannten Messenger zu nennen) interessant.Network operators and independent service providers are increasingly interested in convergent services based on presence information. Network operators and service providers are constantly looking for innovative value-added services that open up new market potential and enable differentiation from the competition. Presence-based services are becoming increasingly popular due to the spread of the SIP standard [1,2] in telecommunications networks and the spread of SIP-capable personal computer software clients (Microsoft Windows XP including the so-called messenger should be mentioned here in particular). Interesting.
Die Grundidee von Presence in IP-Netzen ist, dass ein spezieller Server im IP-Netz (sogenannter Presence-Server) primär die Informationen sammelt welcher IP-Teilnehmer zur Zeit an welchem Endgerät bzw. unter welcher IP-Adresse erreichbar ist. Die jeweiligen IP-Teilnehmer senden dafür spezielle Nachrichten, d.h. Nachrichten mit Presence-Informationen an den Presence-Server. Server, die für neue Mehrwertdienste die Presence-Informationen bestimmter Teilnehmer verwerten wol- len, können diese vom Presence-Server abfragen [5,6]. Beispiele für Presence-basierte Dienste sind Instant Messaging (Austausch von Chat-Nachrichten sobald ein bestimmter IP- Teilnehmer online ist) oder Instant Conferencing (Aufbau eine Telefon- oder Videokonferenz sobald die gewünschten IP- Teilnehmer online sind) . Das Merkmal so genannter konvergenter Mehrwertdienste ist, dass Funktionen im IP-Netz mit Funktionen in PSTN-Netzen verknüpft werden, wie beispielsweise die Initiierung eines PSTN- Rufs über eine Web Seite ("click-to-dial") oder die Initiie- rung und Steuerung einer Konferenz im PSTN über eine Web Seite. Weiterhin unterstützen auch so genannte Next Generation Networks (NGN) bei denen sowohl die Rufsteuerung als auch die Sprachübermittlung IP-basiert ist nach wie vor die Einbindung von PSTN-basierten Teilnehmern über so genannte Gateways. Bisher werden Presence-basierte Dienste nur für IP-Teilnehmer angeboten, d.h. es wird davon ausgegangen dass der Teilnehmer ein IP-fähiges Endgerät hat - z.B. eine Java fähiges Mobilfunkgerät oder einen PC mit Microsoft Messenger - welches es ihm erlaubt über ein SIP-basiertes Protokoll seine Presence- Informationen zu übermitteln. Als Kontaktadresse bzw. Identifikationsadresse unter der der IP-Teilnehmer seine Presence- Information hinterlegen kann wird bisher ausschließlich eine Presence-URI angenomme [3, 4].The basic idea of presence in IP networks is that a special server in the IP network (so-called presence server) primarily collects the information about which IP subscriber can currently be reached at which end device or under which IP address. For this purpose, the respective IP subscribers send special messages, ie messages with presence information to the presence server. Servers that want to use the presence information of certain subscribers for new value-added services can query this from the presence server [5,6]. Examples of presence-based services are instant messaging (exchange of chat messages as soon as a certain IP participant is online) or instant conferencing (setting up a telephone or video conference as soon as the desired IP participants are online). The feature of so-called convergent value-added services is that functions in the IP network are linked to functions in PSTN networks, such as the initiation of a PSTN call via a web page ("click-to-dial") or the initiation and Control of a conference in the PSTN via a web page. So-called Next Generation Networks (NGN), in which both call control and voice transmission are IP-based, continue to support the integration of PSTN-based subscribers via so-called gateways. So far, presence-based services have only been offered for IP subscribers, ie it is assumed that the subscriber has an IP-capable device - for example a Java-enabled mobile device or a PC with Microsoft Messenger - which allows him to do so using a SIP-based protocol to transmit its presence information. So far, only a presence URI has been accepted as the contact address or identification address under which the IP subscriber can store his presence information [3, 4].
Für konvergente Presence-basierte Mehrwertdienste, wie z.B. eine Sprach-Konferenz, wäre es nun sinnvoll, auch einen PSTN- Teilnehmer oder einen IP-Teilnehmer, der momentan nur über ein Standard-Telefonengerät und nicht über ein IP-fähiges Endgerät verfügt, mit einzubeziehen. Eine Lösung für dieses Problem ist bisher nicht bekannt.For convergent presence-based value-added services, such as a voice conference, it would now make sense to also include a PSTN subscriber or an IP subscriber who currently only has a standard telephone device and not an IP-capable terminal. A solution to this problem is not yet known.
Gemäß der Erfindung wird es nun ermöglicht, dass ein PSTN- Teilnehmer oder IP-Teilnehmer auch über ein heute übliches Standard-Telefonendgerät sogenannte "Presence"-Information übermitteln kann und somit angeben kann, dass er zur ZeitAccording to the invention, it is now possible for a PSTN subscriber or IP subscriber to be able to transmit so-called "presence" information via a standard telephone terminal that is common today, and thus to be able to indicate that he is currently
(momentan) über ein bestimmtes Standard-Telefonendgerät erreichbar ist. Dies ist die Voraussetzung dafür, dass der Teilnehmer auch dann in neue konvergente Dienste, die Presen- ce-Informationen auswerten, mit einbezogen werden kann, wenn ihm momentan nur einem Standard-Telefonendgerät zur Verfügung steht.(currently) can be reached via a certain standard telephone terminal. This is the prerequisite for the subscriber to continue to use new convergent services, the press Evaluate ce information that can be included if it is currently only available to a standard telephone terminal.
Im folgenden wird die erfindungsgemäße Lösung näher beschrie- ben.The solution according to the invention is described in more detail below.
Konvergente Presence-basierte Mehrwertdienste basieren typischerweise auf Servern im IP-Netz, die über geeignete Schnittstellen zu Vermittlungseinheiten (diese können auch als Vermittlungsserver bezeichnet werden) Verbindungen steuern bzw. beeinflussen können.Convergent presence-based value-added services are typically based on servers in the IP network, which can control or influence connections via suitable interfaces to switching units (these can also be referred to as switching servers).
Abbildung 1 zeigt eine beispielhafte Netzarchitektur gemäß der Erfindung: Die dargestellte Netzarchitektur basiert auf einem IP- basierten Netz. Die Komponenten haben folgende Funktionen bzw. Aufgaben:Figure 1 shows an exemplary network architecture according to the invention: The network architecture shown is based on an IP-based network. The components have the following functions or tasks:
- Ein Presence-Server ermöglicht einem IP-Teilnehmer die Registrierung von Presence-Information, d.h. die Hinterle- gung von Informationen ob der IP-Teilnehmer zur Zeit erreichbar ist oder nicht. Zusätzlich kann der IP-Teilnehmer auch ergänzende Informationen angegeben, z.B. Stimmung ("möchte in Ruhe gelassen werden", "freue mich auf Nachrichten") oder Kurzinformationen ("bin nur 1 Stunde er- reichbar".)- A presence server enables an IP subscriber to register presence information, i.e. the storage of information as to whether the IP subscriber is currently reachable or not. In addition, the IP subscriber can also provide additional information, e.g. Mood ("wants to be left alone", "look forward to messages") or brief information ("I can only be reached in 1 hour".)
- Ein Dienst-Server enthält die Dienstlogik für einen Mehrwertdienst. Er hat eine geeignete Schittsstelle zu einer Vermittlungseinheit, die eine Steuerung von Verbindungen erlaubt. Ferner hat er eine Schnittstelle (z.B. SIP ba- siert) zu einem Presence-Server, über die er Presence- Informationen bestimmter IP-Teilnehmer abfragen kann. Über eine weitere Schnittstelle zur Vermittlungseinheit kann er beispielsweise den Aufbau einer Verbindung zwischen IP- Teilnehmern mit der Presence-Information "Teilnehmer ist zur Zeit online und erreichbar" steuern.- A service server contains the service logic for a value-added service. It has a suitable interface to a switching unit that allows connections to be controlled. He also has an interface (eg SIP-based) to a presence server, via which he can query the presence information of certain IP users. He can via another interface to the switching unit For example, control the establishment of a connection between IP subscribers with the presence information "subscriber is currently online and available".
- Die IP-Teilnehmer Endgeräte, z.B. ein Multi-Media-PC, ha- ben eine geeignete Schnittstelle (z.B. SIP basiert), um ihre Presence-Information an den Presence-Server zu übermitteln. Die Rufsteuerung und Sprachübermittlung ist ebenfalls IP-basiert. Eine Vermittlungseinheit steuert den Verbindungsaufbau für die zugeordneten IP-Teilnehmer. Sie enthält auch Komponenten für Sprachdialoge oder Konferenzen. Über ein Gateway können traditionelle PSTN-Teilnehmer einbezogen werden. Das Gateway kann selbstverständlich auch in der Vermittlungseinheit integriert sein. - Ein PSTN-Teilnehmer hat ein Standard PSTN-Telefon. Dem Teilnehmer steht daher nur eine einfache Sprachverbindung zur Verfügung.- The IP subscriber terminals, e.g. a multi-media PC, have a suitable interface (e.g. SIP based) to transmit their presence information to the presence server. Call control and voice transmission is also IP-based. A switching unit controls the connection establishment for the assigned IP subscribers. It also contains components for speech dialogues or conferences. Traditional PSTN participants can be included via a gateway. The gateway can of course also be integrated in the switching unit. - A PSTN subscriber has a standard PSTN telephone. The participant is therefore only able to use a simple voice connection.
Durch die Erfindung wird es ermöglicht, daß auch der PSTN- Teilnehmer Presence-Informationen (z.B. "Teilnehmer ist jetzt unter Telefon-Nr. xyz erreichbar") an den Presence-Server übermitteln kann. Dies wird dadurch erreicht, dass die Vermittlungseinheit anstelle eine PSTN-Teilnehmers Presence- Informationen für diesen an einen Presence-Server übermit- telt. Die relevanten Informationen beschafft sich die Vermittlungseinheit von dem PSTN-Teilnehmer z.B. durch eine spezielle Teilnehmersignalisierung oder mittels eines interaktiven Sprachdialogs mit dem PSTN-Teilnehmer und setzt diese Informationen dann auf ein IP-basiertes Protokoll [3, 4] in das für den Presence-Server verständliche Format um. Die so formatierten Informationen übermittelt die Vermittlungseinheit dann an den Presence Server. Die Vermittlungseinheit selbst ist dabei jedoch nur der Protokollendpunkt aus Sicht des Pre- sence-Servers und nicht der tatsächliche PRESENTITY. Tatsächlicher PRESENTITY ist der PSTN-Teilnehmer. Eine Vermittlungseinheit agiert gegenüber dem Presence-Server im Namen vieler PSTN-Teilnehmer.The invention makes it possible for the PSTN subscriber to be able to transmit presence information (for example "subscriber can now be reached under telephone number xyz") to the presence server. This is achieved in that the switching unit transmits presence information for a subscriber to a presence server instead of a PSTN subscriber. The switching unit obtains the relevant information from the PSTN subscriber, for example by means of special subscriber signaling or by means of an interactive voice dialog with the PSTN subscriber, and then sets this information on an IP-based protocol [3, 4] for the presence server understandable format. The switching unit then transmits the information formatted in this way to the presence server. The switching unit itself however, this is only the protocol endpoint from the perspective of the presence server and not the actual PRESENTITY. The actual PRESENTITY is the PSTN participant. A switching unit acts towards the presence server on behalf of many PSTN participants.
Wenn sich die Vermittlungseinheit die relevanten Informationen mittels eines interaktiven Sprachdialogs mit dem PSTN- Teilnehmer verschafft, steuert die Vermittlungseinheit mittels einer Ansageeinheit den sprachgesteuerten Dialog und sammelt so die relevanten Information von dem PSTN-Teilnehmer ein. Die Vermittlungseinheit übermittelt dann im Namen des PSTN-Teilnehmers Presence-Informationen an den Presence- Server über eine IP-basierte Schnittstelle (z.B. SIP- basiert) . Der Presence-Server erhält somit auch Presence- Informationen eines PSTN-Teilnehmers, die dann von einemIf the switching unit obtains the relevant information using an interactive voice dialog with the PSTN subscriber, the switching unit controls the voice-controlled dialog using an announcement unit and thus collects the relevant information from the PSTN subscriber. The switching unit then transmits presence information to the presence server in the name of the PSTN subscriber via an IP-based interface (e.g. SIP-based). The presence server thus also receives presence information from a PSTN subscriber, which is then from one
Dienst-Server ausgewertet und für Dienste berücksichtigt werden können.Service server can be evaluated and taken into account for services.
Das erfindungsgemäße Verfahren erlaubt es also, dass nunmehr auch ein PSTN-Teilnehmer beim Presence-Server Presence- Informationen hinterlegen kann, und zwar über die Vermittlungseinheit. Kontakt- bzw. die Identifikationsadresse für die Presence-Information muss aber eine E.164 Telefonnummer sein, denn nur unter einer solchen ist der PSTN-Teilnehmer erreichbar. Die Protokolle und Datenmodelle für Presence befinden sich zur Zeit noch in der Standardisierungsphase in der IETF [3, 4]. Dabei wird als Identifikations- bzw. Kontaktadresse für den PRESENTITY (= Teilnehmer, der Presence-Information übermittelt) ausschließlich eine Presence URI in der Form "pres : fred@exampl . com" diskutiert. Das erfindungsgemäße Verfahren ermöglicht es darüber hinaus, auch für einen PSTN-Teilnehmer bei dem Presence Server eine Kontaktadresse als PRESENTITY zu hinterlegen, wobei die normale E.164 Telefonnummer als Kontaktadresse verwendet wird. Dies setzt jedoch voraus, dass der Presence Server E.164- Nummern als Kontaktadressen behandeln kann. Dies kann im Rahmen der Standardisierung berücksichtigt werden oder proprietär implementiert werden .The method according to the invention therefore allows a PSTN subscriber to also store presence information with the presence server, specifically via the switching unit. However, the contact or identification address for the presence information must be an E.164 telephone number, because only under this can the PSTN subscriber be reached. The protocols and data models for Presence are currently still in the standardization phase in the IETF [3, 4]. Only a presence URI in the form "pres: fred @ exampl. Com" is discussed as the identification or contact address for the PRESENTITY (= subscriber who transmits presence information). The method according to the invention also makes it possible to store a contact address as a PRESENTITY for a PSTN subscriber at the presence server, the normal E.164 telephone number being used as the contact address. However, this presupposes that the Presence Server can treat E.164 numbers as contact addresses. This can be taken into account in the context of standardization or implemented in a proprietary manner.
Vorteile der Erfindung:Advantages of the invention:
• Durch das erfindungsgemäße Verfahren können auch PSTN- Teilnehmer Presence-basierte Dienste nutzen. Mit dem gegenwärtigen Stand der Technik ist dies nicht möglich. • Die Presence-Information auf Basis einer E.164 Nummer ist nicht auf die ausschließliche Anwendung für PSTN- Teilnehmer beschränkt. Sie kann auch als optionale Ergänzung zu den bisher in der IETF diskutierten URI basierten Kontaktadressen verwendet werden. Aufgrund einer aktuellen Statusindikation könnte der PRESENTITY dann angeben, dass er im Moment nur über die registrierte E.164 Adresse erreichbar ist.• With the method according to the invention, PSTN subscribers can also use presence-based services. This is not possible with the current state of the art. • The presence information based on an E.164 number is not limited to the exclusive use for PSTN participants. It can also be used as an optional addition to the URI-based contact addresses previously discussed in the IETF. Based on a current status indication, the PRESENTITY could then indicate that it can currently only be reached via the registered E.164 address.
• Für den Dienstanbieter: Das erfindungsgemäße Verfahren erhöht die Attraktivität eines Presence-basierten Dienstes durch Einbindung von PSTN-Teilnehmern.• For the service provider: The method according to the invention increases the attractiveness of a presence-based service by integrating PSTN subscribers.
Wenn die Presence-Daten gemäß einer Variante der Erfindung mittels eines Sprachdialogs übermittelt werden, ergeben sich zusätzlich folgende Vorteile.If, according to a variant of the invention, the presence data are transmitted by means of a voice dialog, the following additional advantages result.
• Der PSTN-Teilnehmer braucht kein spezifisches Endgerät zur Registrierung seiner Presence-Informationen.• The PSTN subscriber does not need a specific end device to register his presence information.
• Der PTSN-Teilnehmer kann die Presence-Information von jedem beliebigen Telefon (Festnetz oder auch Mobilfunktelefon) aus übermitteln. (Voraussetzung: Die Vermittlungseinheit erlaubt das Aktualisieren von Presence-Information • unabhängig von der Teilnehmer CLI (Calling Line Identi- ty)) • Für den Netzbetreiber (wenn nicht gleich Dienstanbieter)• The PTSN subscriber can transmit the presence information from any telephone (landline or mobile phone). (Prerequisite: The switching unit allows the update of presence information • regardless of the subscriber CLI (Calling Line Identity)) • For the network operator (if not the same service provider)
Das erfindungsgemäße Verfahren erzeugt zusätzliches Gesprächsvolumen durch die Sprachdialoge.The method according to the invention generates additional conversation volume through the speech dialogues.
folgen weitere Ausführungsvarianten der Erfindung:Further variants of the invention follow:
• Die Ansageneinheit zur Realisierung des Sprachdialogs kann sowohl in die Vermittlungseinheit integriert sein oder separat über geeignete Schnittstellen angeschlossen bzw. angesteuert werden.• The announcement unit for realizing the voice dialogue can either be integrated in the switching unit or be connected or controlled separately via suitable interfaces.
• Die Steuerlogik zur Ansteuerung der Ansageneinheit kann sowohl in der Vermittlungseinheit integriert sein oder auf einem separaten Server liegen, z.B. auf einem IN SCP (Intelligent Network Service Control Point) . Dasselbe gilt auch für die dazugehörigen Daten (z.B. Berechtigung des PSTN-Teilnehmers, die Sprach-basierte Presence-Registrierung zu nutzen) .The control logic for controlling the announcement unit can either be integrated in the switching unit or on a separate server, e.g. on an IN SCP (Intelligent Network Service Control Point). The same applies to the associated data (e.g. authorization of the PSTN subscriber to use the voice-based presence registration).
• Wenn die Vermittlungseinheit eine automatische Berech- tigungsprüfung auf die CLI des PSTN-Teilnehmers macht, kann die Funktion nur vom Heimendgerät aus erfolgen. Wird eine solche Prüfung nicht durchgeführt, sondern erfolgt die Berechtigungsprüfung aufgrund von Informationen, die mittels Sprachdialog abgefragt werden, kann der PSTN-Teilnehmer jedes beliebige Fetsnetz/Mobilfunk- endgerät verwenden.• If the switching unit performs an automatic authorization check on the CLI of the PSTN subscriber, the function can only be carried out from the home terminal. If such a check is not carried out, but the authorization check is carried out on the basis of information which is queried by means of a voice dialog, the PSTN subscriber can use any fat network / mobile terminal.
• Der Dienst-Server und der Presence-Server können physikalisch integriert oder separiert sein. Im Folgenden wird ein Anwendungsbeispiel der Erfindung auf den Presence-gesteuerten "Instant Konferenz-Dienst" mithilfe Abbildung 2 dargestellt. Die hierbei dargestellten Schnittstellen für Presence (hier: Registrierung, Abfrage) sowie die Rufsteuerung für IP-Teilnehmer sind SIP-basiert. Es wird angenommen, dass diese auf den z.Zt. in der IETF SIMPLE Wor- kingroup diskutierten Festlegungen basieren [3, 4, 5, 6]• The service server and the presence server can be physically integrated or separated. An example of application of the invention to the presence-controlled “instant conference service” is shown below with the aid of FIG. 2. The interfaces shown here for presence (here: registration, query) and call control for IP users are SIP-based. It is assumed that this is currently The specifications discussed in the IETF SIMPLE Working Group are based [3, 4, 5, 6]
Die Funktion des "Instant Konferenz-Dienst" ist es, automa- tisch eine Sprachkonferenz zwischen mehreren Teilnehmern aufzubauen sobald diese erreichbar sind. Die Erreichbarkeit wird auf Basis von Presence-Informationen ermittelt, die der Instant Konferenz-Server von einem Presence-Server erfährt. Im Beispiel soll eine Konferenz zwischen den beiden SIP- Teilnehmern 1 und 2 und dem PSTN-Teilnehmer aufgebaut werden, sobald alle Teilnehmer erreichbar sind. Die beiden SIP- Teilnehmer verfügen über einen Multi-Media-PC mit einem SIP- Client. Damit können sie sowohl IP-basierte Sprach- und Video-Verbindungen aufbauen als auch Presence-Informationen mit einem Presence-Server austauschen. Der PSTN-Teilnehmer hat nur die Möglichkeit einer Sprachverbindung.The function of the "Instant Conference Service" is to automatically set up a voice conference between several participants as soon as they can be reached. Accessibility is determined on the basis of presence information that the instant conference server learns from a presence server. In the example, a conference is to be set up between the two SIP participants 1 and 2 and the PSTN participant as soon as all participants can be reached. The two SIP participants have a multi-media PC with a SIP client. This enables you to set up IP-based voice and video connections as well as exchange presence information with a presence server. The PSTN subscriber only has the option of a voice connection.
Zum Starten der Konferenz aktualisieren die beiden SIP- Teilnehmer ihre Presence-Information direkt über ihre Client- Software im Presence Server. Der PSTN-Teilnehmer wählt eine spezielle Dienstrufnummer, die ihn mit der Vermittlungseinheit verbindet. Er ist für die Nutzung der sprachgesteuerten Presence-Informationsübermittlung berechtigt. Bei diesem Anwendungsbeispiel soll diese Berechtigung auf Basis der CLI erfolgen. Nach Prüfung der CLI ermittelt die Vermittlungs- einheit/Ansageneinheit mittels Sprachdialog, dass der Teilnehmer jetzt unter seinem Heimanschluss verfügbar ist. Diese Information wird in ein SIP-basiertes Protokoll umgewandelt und von der Vermittlungseinheit an den Presence-Server gesen- det. Sobald der Instant Konferenz-Server erfährt (Optionen:To start the conference, the two SIP participants update their presence information directly via their client software in the presence server. The PSTN subscriber dials a special service number that connects him to the switching unit. He is authorized to use voice-controlled presence information transmission. In this application example, this authorization should be based on the CLI. After checking the CLI, the switching unit / announcement unit uses voice dialogue to determine that the subscriber is now available under his home connection. This information is converted into a SIP-based protocol and sent from the switching unit to the presence server. det. As soon as the instant conference server learns (options:
Presence Server meldet Status-Änderungen oder Dienst-Server fragt periodisch ab) , dass der erforderliche PSTN-Teilnehmer erreichbar ist, startet dieser die Telefonkonferenz. Dies erfolgt über ein geeignetes Protokoll zwischen Instant Konferenz-Server und Vermittlungseinheit. Der PSTN-Teilnehmer wird mittels Sprachverbindung eingebunden. Je nach Client- Möglichkeiten wäre zwischen den beiden SIP-Teilnehmern auch eine parallele Videoverbindung über IP möglich.Presence Server reports status changes or the service server periodically queries) that the required PSTN subscriber can be reached, he starts the conference call. This is done using a suitable protocol between the instant conference server and the switching unit. The PSTN subscriber is integrated using a voice connection. Depending on the client options, a parallel video connection via IP would also be possible between the two SIP subscribers.
Referenzen:Credentials:
[1] IETF: RFC 3261: SIP [2] IETF: RFC 2327: SDP:[1] IETF: RFC 3261: SIP [2] IETF: RFC 2327: SDP:
[3] IETF draft "Common Profile: Presence" (draft-ietf-impp- pres-01)[3] IETF draft "Common Profile: Presence" (draft-ietf-impp-pres-01)
[4] IETF draft "Common Presence and Instant Messaging (CPIM) Presence Information Data Format" (draft-ietf-impp-cpim- pidf-07) [5] IETF: RFC 2778: A Model for Presence and Instant Messag- ing[4] IETF draft "Common Presence and Instant Messaging (CPIM) Presence Information Data Format" (draft-ietf-impp-cpim-pidf-07) [5] IETF: RFC 2778: A Model for Presence and Instant Messaging
[6] IETF: RFC 2779: Instant Messaging / Presence Protocol Re- quirements [6] IETF: RFC 2779: Instant Messaging / Presence Protocol Requirements

Claims

Patentansprüche claims
1. Verfahren zur Unterstützung von Presence-basierten Diensten, demgemäß von einer Vermittlungseinrichtung Presence-Informationen bezüglich eines Teilnehmers an einen Presence-Server übermittelt werden, wobei die dazu benötigten Informationen von dem Teilnehmer beschafft werden, und wobei die genannten Presence-Informationen als Kontaktadresse eine E.164 Telefonnummer enthalten.1. A method for supporting presence-based services, according to which a switching device transmits presence information relating to a subscriber to a presence server, the information required for this being obtained from the subscriber, and the presence information mentioned being a contact address E.164 phone number included.
2. Verfahren nach Anspruch 1 dadurch gekennzeichnet, dass es sich bei dem Teilnehmer um einen PSTN-Teilnehmer han- delt.2. The method according to claim 1, characterized in that the subscriber is a PSTN subscriber.
3. Verfahren nach Anspruch 1 oder 2 dadurch gekennzeichnet, dass die genannten benötigten Informationen mithilfe eines interaktiven Sprachdialogs mit dem Teilnehmer beschafft werden.3. The method according to claim 1 or 2, characterized in that said information required is obtained using an interactive voice dialog with the participant.
4. Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die genannten Presence-Informationen an den Presence4. The method according to any one of claims 1 to 3, characterized in that said presence information to the presence
Server mithilfe einer IP-basierten Schnittstelle übermittelt werden.Server are transmitted using an IP-based interface.
5. Einrichtung zur Unterstützung von Presence-basierten Diensten, die anstelle eines Teilnehmers Presence-Informationen für diesen an einen Presence-Server übermittelt, wobei sie sich die dazu benötigten Informationen von dem Teilnehmer beschafft, und wobei die genannten Presence-Informationen als Kontaktadresse eine E.164 Telefonnummer enthalten.5. Device for supporting presence-based services, which transmits presence information for a subscriber to a presence server instead of a subscriber, wherein it obtains the information required for this from the subscriber, and where the presence information contains an E.164 telephone number as the contact address.
6. Einrichtung nach Anspruch 5, dadurch gekennzeichnet, dass es sich bei dem Teilnehmer um einen PSTN-Teilnehmer handelt.6. Device according to claim 5, characterized in that the subscriber is a PSTN subscriber.
7. Einrichtung nach Anspruch 5 oder 6, dadurch gekennzeichnet, dass sie sich die genannten benötigten Informationen mithilfe eines interaktiven Sprachdialogs mit dem PSTN-Teilnehmer beschafft.7. Device according to claim 5 or 6, characterized in that it obtains the information required using an interactive voice dialog with the PSTN subscriber.
8. Einrichtung nach einem der Ansprüche 5 bis 7, dadurch gekennzeichnet, dass sie mit einem ein Gateway verbunden ist, über das sie mit dem PSTN-Teilnehmer kommuniziert. 8. Device according to one of claims 5 to 7, characterized in that it is connected to a gateway via which it communicates with the PSTN subscriber.
PCT/EP2004/051907 2003-08-29 2004-08-25 Method for supporting presence based services WO2005025181A1 (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020116336A1 (en) * 2001-02-05 2002-08-22 Athanassios Diacakis Method and device for displaying contact information in a presence and availability management system
US20030154293A1 (en) * 2002-02-14 2003-08-14 Zmolek Andrew Charles Presence tracking and name space interconnection techniques

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020116336A1 (en) * 2001-02-05 2002-08-22 Athanassios Diacakis Method and device for displaying contact information in a presence and availability management system
US20030154293A1 (en) * 2002-02-14 2003-08-14 Zmolek Andrew Charles Presence tracking and name space interconnection techniques

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