EP1999915A1 - Procede pour eviter une classification erronee de messages souhaites comme courrier indesirable par telephonie internet (spam over internet telephony) - Google Patents

Procede pour eviter une classification erronee de messages souhaites comme courrier indesirable par telephonie internet (spam over internet telephony)

Info

Publication number
EP1999915A1
EP1999915A1 EP07726598A EP07726598A EP1999915A1 EP 1999915 A1 EP1999915 A1 EP 1999915A1 EP 07726598 A EP07726598 A EP 07726598A EP 07726598 A EP07726598 A EP 07726598A EP 1999915 A1 EP1999915 A1 EP 1999915A1
Authority
EP
European Patent Office
Prior art keywords
subscriber
connection request
terminal
communication network
messages
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP07726598A
Other languages
German (de)
English (en)
Inventor
Joachim Charzinski
Walter Klausberger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nokia Solutions and Networks GmbH and Co KG
Original Assignee
Nokia Siemens Networks GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nokia Siemens Networks GmbH and Co KG filed Critical Nokia Siemens Networks GmbH and Co KG
Publication of EP1999915A1 publication Critical patent/EP1999915A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M7/00—Arrangements for interconnection between switching centres
    • H04M7/006—Networks other than PSTN/ISDN providing telephone service, e.g. Voice over Internet Protocol (VoIP), including next generation networks with a packet-switched transport layer
    • H04M7/0078—Security; Fraud detection; Fraud prevention
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/1066—Session management
    • H04L65/1076—Screening of IP real time communications, e.g. spam over Internet telephony [SPIT]
    • H04L65/1079—Screening of IP real time communications, e.g. spam over Internet telephony [SPIT] of unsolicited session attempts, e.g. SPIT
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/1066—Session management
    • H04L65/1101—Session protocols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/1066—Session management
    • H04L65/1101—Session protocols
    • H04L65/1104—Session initiation protocol [SIP]
    • 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
    • H04M3/436—Arrangements for screening incoming calls, i.e. evaluating the characteristics of a call before deciding whether to answer it
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L51/00—User-to-user messaging in packet-switching networks, transmitted according to store-and-forward or real-time protocols, e.g. e-mail
    • H04L51/21—Monitoring or handling of messages
    • H04L51/212—Monitoring or handling of messages using filtering or selective blocking

Definitions

  • the invention relates to a method and a device for avoiding erroneous classification of desired messages as spam over Internet telephony messages, abbreviated SPIT messages, in a communication network.
  • spammming refers to the mass sending of unwanted messages (“spam”).
  • spamm benefits from easy and affordable access to electronic media, which can usually be used to send messages to a large number of recipients at low cost and time, and the content of such "spam” messages is often more commercial "Spam” is the most prevalent type of "spam.”
  • a very well-known form of "spam” is mass mailing of e-mails for advertising purposes.
  • e-mail "spam” there are other forms such as "spam” regarding instant messaging, Usenet newsgroups, WWW search engines, weblogs or mobile communications.
  • VoIP Voice over IP
  • SPIT Packet over Internet telephony
  • PSTN Public Switched Telephone Network
  • VoIP subscribers can be conducted almost free of charge for the caller due to the deviating billing model, which can be expected to generate a massive amount of SPIT for the future.
  • the ability to send recorded voice files in bulk should be interesting for advertisers. It can be assumed that the affected VoIP subscribers will ask their respective VoIP provider for appropriate measures to be protected against unwanted calls.
  • a whitelist contains for a subscriber X subscriber-specific information to those other participants Y in the communication network, which were classified as trustworthy and are therefore entitled to call subscriber X.
  • a blacklist contains subscriber-specific information about such other subscribers Y who have been classified as untrustworthy and who are therefore not authorized to call subscriber X.
  • SPIT protection using white and black lists can be ineffective, for example in the case of so-called "roaming" of a subscriber, ie the use of a communication terminal of a subscriber in a communication network other than the subscriber's home network, since it can not be guaranteed that each network operator in each case forwards the actual number of a roaming subscriber to a foreign communication network.
  • SPIT filters are known, in addition to the sender address of a calling party additionally evaluate one or more entries of the header of a SIP Invite message for the evaluation of the SPIT probability of the message in question. In this way, the reliability of SPIT filters can be increased, as it is possible to detect fake sender addresses.
  • a disadvantage of this method is that a call of a "roaming" subscriber from a foreign communication network would be erroneously classified as SPIT due to the header entries of the relevant SIP Invite message deviating significantly from header entries known for this subscriber ,
  • a simple solution to the problem would be to ensure the forwarding of a caller's number from all communication networks.
  • a reliable solution on this basis would require the cooperation of all network operators, so that additional workarounds for the case are needed.
  • a network operator does not forward its actual phone number to its roaming subscribers.
  • TDM telephony enterprise communications networks have CTI (Computer Telephony Integration) solutions with equivalent functionality, but these solutions are do not use in a public IP communications network.
  • the object of the invention is to design a method and a device such that an erroneous classification of desired messages as spam over Internet telephony messages, abbreviated SPIT messages, can be avoided.
  • the invention relates to a method for avoiding erroneous classification of desired messages as spam over Internet telephony messages, abbreviated SPIT messages, consequently a connection request within communication networks of a terminal of a first
  • Subscriber is forwarded to a terminal of a second subscriber, wherein a first communication network is a home communication network of the first subscriber, and wherein the terminal of the first subscriber in a communication network, in which the terminal of the first subscriber is registered at the time of the connection request, identifying registration state, wherein by information contained in the connection request, the identity of the first participant falsifying subscriber-related information regarding the registration state of the terminal of the first subscriber the possibility of an incorrect classification of the connection request part of the second participant.
  • a server system forwards the connection request via a communication device located in the home communication network to the terminal of the second subscriber, wherein the communication device prior to forwarding the connection request by removing the user-related information contained in the connection request, the identity of the first participant falsifying Registration state of the terminal of the first subscriber avoids an erroneous classification of the connection request by the second subscriber.
  • the invention relates to a device for carrying out the illustrated method.
  • the invention has the advantage that an erroneous classification of desired messages as spam over Internet telephony messages, abbreviated SPIT messages, can be avoided.
  • FIG. 1 communication networks Nl, N2, N3 with SIP servers
  • FIG. 1 communication networks Nl, N2, N3 with SIP servers
  • FIG. 3 communication networks Nl, N2, N3 with SIP servers
  • the SOPP ensures that correct subscriber-related information relating to the first subscriber A, in particular the telephone number of the first subscriber A, is signaled.
  • credentials for the first party A can be verified by the proxy system SOPP, for example by including a first registrar Eq.
  • a registrar G1, G2, G3 is a device in a communication network N1, N2, N3 for registering subscribers and optionally for checking subscriber-related credentials.
  • a registrar corresponds functionally to the unit of Home Location Register and Visitor Location Register.
  • FIG. 1 shows three communication networks N1, N2, N3 with three SIP servers SP1, SP2, SP3 and three registrars G1, G2, G3 and a first subscriber A and a second subscriber B. Both subscribers A, B are in their respective home countries. Communication network Nl, N3 registered.
  • the SIP servers SP1, SP2, SP3 are preferably represented by soft switches or SIP proxies.
  • FIG. 1 shows message flows FO, Fl, F2, F3. With a first message flow FO, the second subscriber B registers with a third registrar G3, wherein the third registrar G3 is located in the home communication network N3 of the second subscriber B.
  • the first subscriber A registers with a first registrar G1, wherein the first registrar G1 is in the home communication network N1 of the first subscriber A.
  • the first subscriber A signals a desired call setup to the second subscriber B by means of a third message flow F2.
  • This third message flow F2 is forwarded by a first SIP proxy SP1 to the second subscriber B via a fourth message flow F3 via a third SIP proxy.
  • the information transmitted by means of the fourth message flow F3 can optionally be evaluated for possible SPITs before the terminal of the second subscriber B in the case of a Non-SPIT call signaled the incoming call, for example by means of a ringing tone.
  • FIG. 2 shows the three communication networks N1, N2, N3 with the three SIP servers SP1, SP2, SP3 and the three registrars Gl, G2, G3 and the two subscribers A, B.
  • the first subscriber A is in the state of "roaming": The first subscriber A pauses with his terminal in the second communication network N 2. Between the network operators of the first communication network N 1 of the second communication network N 2, for example, there is a roaming. Agreement so that subscribers of the first communication network Nl can also log into the second communication network N2 and vice versa. The second subscriber B is registered at the time shown in his home communication network N3.
  • the first subscriber A sends a registration message in the form of a first message flow Fl to a second registrar G2, wherein the second registrar G2 is located in the second communication network G2.
  • the second registrar G2 sends a confirmation request Fla to the first registrar Gl, the first registrar Gl being in the home communication network Nl of the first subscriber A.
  • the first subscriber A is registered in the second communication network N2.
  • the first subscriber A establishes a communication connection to the second subscriber B, for example by means of a second message flow F2 and a third message flow F3 via a second SIP proxy SP2 and a third SIP proxy SP3.
  • the above-mentioned problem may arise that the third and the third message flow F3 do not contain the correct and actual sender address of the first subscriber A.
  • FIG. 3 shows the three communication networks N1, N2, N3 with the three SIP servers SP1, SP2, SP3 and the three registrars Gl, G2, G3 and the two subscribers A, B.
  • first subscriber A in the "roaming" state by logging on in the second communication network N2 via the proxy system SOPP
  • the second subscriber B is registered at the time shown in his home communication network N3.
  • the first subscriber A sends a registration message in the form of a first message flow Fl to a second registrar G2, wherein the second registrar G2 is located in the second communication network G2.
  • the second registrar G2 sends an acknowledgment request Fla to the first registrar Gl, the first registrar Gl being in the home communication network Nl of the first subscriber A. "
  • the first registrar G1 transmits a positive acknowledgment to the second registrar G2
  • the first subscriber A is registered in the second communication network N2.
  • the first subscriber A does not set up a direct communication connection to the terminal of the second subscriber B. Instead, the communi- cation connection via the proxy system SOPP to the terminal of the second party B passed.
  • the first subscriber A In order to set up a call via the proxy system SOPP, the first subscriber A must first authenticate to the proxy system SOPP. For this purpose, the first party A sends a registration message F2 from its terminal via a second SIP proxy SP2 and the first SIP proxy SPl to the proxy system SOPP, wherein the second SIP proxy SP2 in the second communication network N2 and the first SIP Proxy SP1 and the proxy system SOPP are located, for example, in the first communication network N1 and thus in the home communication network N1 of the first subscriber A. In the course of this registration process, the first subscriber A transmits, for example, his telephone number and a PIN code or alternatively a password to the proxy system SOPP.
  • the proxy system SOPP then carries out the authentication of the first subscriber A by the proxy system sending a request for permission F3 to the first registrar Gl, whereupon the first registrar G1, for example, checks the subscriber-related information regarding the first subscriber A and, if appropriate, sends back a positive acknowledgment to the proxy system SOPP.
  • the proxy system SOPP then forwards a SIP Invite message sent by the terminal of the first subscriber A in the course of establishment of the communication connection via a SIP server in the home communication network of the first subscriber A, for example via the first SIP proxy SPI.
  • the first SIP proxy SP1 removes the information relating to the "roaming" state of the first subscriber A from the SIP header of the SIP invitee sent by the terminal of the first subscriber A.
  • the call in question is a call of a
  • the relevant call is then perceived by the called second subscriber B as a call from the home communication network of the first subscriber A.
  • Example architecture Other network architectures are conceivable.
  • PIN codes and / or the password for example by means of a challenge-response method vorappelbar.
  • the registration state designates a communication network N2, N3, which differs from the home communication network N1, in which the terminal of the first subscriber A is registered at the time of the connection request F2, F4.
  • This offers the advantage that the terminal of the first subscriber A can also be used in another communication network N2, N3 as the home communication network, whereby it is nevertheless ensured by the inventive method that an incorrect classification of the connection request F2, F4 on the part of the second subscriber B is avoided.
  • This has the advantage that even when using a simple black or white list On the part of the second subscriber B, whereby for example only telephone numbers are stored in the black or white list, a faulty classification of the connection request F2, F4 on the part of the second subscriber B is avoided.
  • the terminal of the first subscriber A is assigned to the first subscriber A permanently.
  • the terminal of the first subscriber A can be assigned to the first subscriber A temporarily.
  • the first subscriber A can use any desired terminal within a communication network N1, N2, N3, for example, by logging on to any terminal with a personal PIN code. If, in the transmission in a connection request F2, F4 initiated by the first subscriber A, subscriber-related information relating to the registration state of the terminal of the first subscriber A is, for example, a terminal address unambiguously identifying the terminal of the first subscriber A, for example a MAC address.
  • the invention provides Method has the advantage that a faulty classification of the connection request F2, F4 by the second subscriber B is avoided by the identity of the first subscriber A falsifying subscriber-related information with respect to the registration state of the terminal of the first subscriber A, in this case, for example the MAC address is removed.
  • the terminal of the first subscriber A is in a state of "roaming", and the communication device SP1 removes information regarding the "roaming" state of the first subscriber A before the forwarding of the connection request F2, F4 from the connection request F2, F4.
  • This has the advantage that the first subscriber A can stay in a different communication network N2, N3 from his home communication network Nl, wherein his terminal is in the state of
  • connection request F2, F4 is a SIP Invite request.
  • the server system SOPP causes a forwarding of the connection request F2, F4 of the first subscriber A authentication of the first subscriber A, wherein the forwarding of the connection request F2, F4 takes place only if the authentication of the first Participant A is successful.
  • the first subscriber A sends subscriber-related data to the server system SOPP for authentication.
  • This has the advantage that, for example, the identity of the first subscriber A can be checked on the basis of subscriber-related data.
  • the subscriber-related data include a sender address and / or a PIN number and / or a password. This has the advantage that, for example, the identity of the first subscriber A can be checked on the basis of a sender address and / or a PIN number and / or a password.
  • signaling data contained in the subscriber-related data can be evaluated with reference to the signaling route of the connection request F2, F4.
  • This has the advantage that, for example, information about the path already covered by the connection request F2, F4 in the communication network N1, N2, N3 can be checked. This information may, for example, be represented by header entries in the connection request F2, F4, such as "Route:", "Max-Forwards:” or "Via:”.
  • the authentication of the first subscriber A by a registrar Gl, G2, G3 is feasible. This has the advantage that the server system SOPP can efficiently perform the authentication of the first subscriber A through a separate network component.
  • the first subscriber A registers with a second registrar G2 located in a communication network N2 other than the home communication network N1 of the first subscriber A, wherein the second registrar G2 registers a first one in the home communication network Nl of the first subscriber A Registrar located for the purpose of authentication of the first subscriber A contacted.
  • the server system SOPP is located in the home communication network N1 of the first subscriber A.
  • the server system SOPP represents a terminal of the first subscriber A.
  • the server system SOPP represents a computer program executable on a terminal of the first subscriber A.
  • At least one of the communication networks Nl, N2, N3 represents an IP communication network.

Abstract

La présente invention concerne un procédé et un dispositif pour éviter une classification erronée de messages souhaités comme courriers indésirables (spam over internet telephony ou messages SPIT), selon lequel une requête de connexion au sein de réseaux de communication est transmise d'un terminal d'un premier abonné à un terminal d'un second abonné, un premier réseau de communication représentant un réseau domestique de communication du premier abonné et le premier terminal du premier abonné se trouvant dans un état d'enregistrement caractérisant le réseau de communication dans lequel est inscrit le terminal du premier abonné au moment de la requête de connexion, des informations relatives aux abonnés, contenues dans la requête de connexion falsifiant l'identité du premier abonné, concernant l'état d'enregistrement du terminal du premier abonné, donnant la possibilité d'une classification erronée de la requête de connexion de la part du second abonné. Un système de serveur transmet au terminal du second abonné la requête de connexion par un dispositif de communication implanté dans le réseau domestique de communication, le dispositif de communication évitant une classification erronée de la requête de connexion de la part du second abonné avant la transmission de la requête de connexion par suppression des informations relatives aux abonnés, contenues dans la requête de connexion falsifiant l'identité du premier abonné, concernant l'état d'enregistrement du terminal du premier abonné.
EP07726598A 2006-03-17 2007-03-02 Procede pour eviter une classification erronee de messages souhaites comme courrier indesirable par telephonie internet (spam over internet telephony) Withdrawn EP1999915A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006012439A DE102006012439B4 (de) 2006-03-17 2006-03-17 Verfahren und Vorrichtungen zur Vermeidung einer fehlerhaften Klassifizierung von erwünschten Nachrichten als Spam over Internet Telephony-Nachrichten, abgekürzt SPIT-Nachrichten, in einem Kommunikationsnetzwerk
PCT/EP2007/052004 WO2007107438A1 (fr) 2006-03-17 2007-03-02 PROCEDE POUR eviter une classification ERRONEE de messageS SOUHAITES COMME COURRIER INDESIRABLE par telephonie internet (spam over internet telephony)

Publications (1)

Publication Number Publication Date
EP1999915A1 true EP1999915A1 (fr) 2008-12-10

Family

ID=38068736

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07726598A Withdrawn EP1999915A1 (fr) 2006-03-17 2007-03-02 Procede pour eviter une classification erronee de messages souhaites comme courrier indesirable par telephonie internet (spam over internet telephony)

Country Status (4)

Country Link
US (1) US20090103458A1 (fr)
EP (1) EP1999915A1 (fr)
DE (1) DE102006012439B4 (fr)
WO (1) WO2007107438A1 (fr)

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JP2010114870A (ja) * 2008-10-06 2010-05-20 Nec Corp 通信システム及び通信制御方法
JP5381086B2 (ja) * 2008-10-06 2014-01-08 日本電気株式会社 通信システム及び通信制御方法
JP5381087B2 (ja) * 2008-10-06 2014-01-08 日本電気株式会社 通信システム及び通信制御方法
US9185141B2 (en) * 2009-05-19 2015-11-10 Telefonaktiebolaget L M Ericsson (Publ) Managing roaming agreements between IMS networks
FR3019433A1 (fr) * 2014-03-31 2015-10-02 Orange Procede de detection d'une usurpation d'identite appartenant a un domaine

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EP1318683A1 (fr) * 2001-12-10 2003-06-11 Siemens Aktiengesellschaft Méthode pour la transmission de messages de signalisation et dispositif, message de signalisation et programme associés
DE10326092B3 (de) * 2003-06-10 2005-02-17 Web.De Ag Verfahren zum Kategorisieren von Nachrichten und Vorrichtungen zur Durchführung desselben
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Also Published As

Publication number Publication date
WO2007107438A1 (fr) 2007-09-27
DE102006012439A1 (de) 2007-09-20
DE102006012439B4 (de) 2008-03-27
US20090103458A1 (en) 2009-04-23

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