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1. WO2020193271 - SPOOF CALL DETECTION IN TELEPHONE NETWORK

Publication Number WO/2020/193271
Publication Date 01.10.2020
International Application No. PCT/EP2020/057213
International Filing Date 17.03.2020
IPC
H04M 3/22 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
MTELEPHONIC COMMUNICATION
3Automatic or semi-automatic exchanges
22Arrangements for supervision, monitoring or testing
H04L 29/06 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
29Arrangements, apparatus, circuits or systems, not covered by a single one of groups H04L1/-H04L27/136
02Communication control; Communication processing
06characterised by a protocol
H04M 3/436 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
MTELEPHONIC COMMUNICATION
3Automatic or semi-automatic exchanges
42Systems providing special services or facilities to subscribers
436Arrangements for screening incoming calls
H04W 12/12 2009.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
12Security arrangements, e.g. access security or fraud detection; Authentication, e.g. verifying user identity or authorisation; Protecting privacy or anonymity
12Fraud detection
H04M 3/42 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
MTELEPHONIC COMMUNICATION
3Automatic or semi-automatic exchanges
42Systems providing special services or facilities to subscribers
CPC
H04L 63/1483
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
63Network architectures or network communication protocols for network security
14for detecting or protecting against malicious traffic
1441Countermeasures against malicious traffic
1483service impersonation, e.g. phishing, pharming or web spoofing
H04M 2203/6027
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
MTELEPHONIC COMMUNICATION
2203Aspects of automatic or semi-automatic exchanges
60related to security aspects in telephonic communication systems
6027Fraud preventions
H04M 3/2281
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
MTELEPHONIC COMMUNICATION
3Automatic or semi-automatic exchanges
22Supervisory, monitoring, ; management, i.e. operation, administration, maintenance; or testing arrangements
2281Call monitoring, e.g. for law enforcement purposes; Call tracing; Detection or prevention of malicious calls
H04M 3/42059
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
MTELEPHONIC COMMUNICATION
3Automatic or semi-automatic exchanges
42Systems providing special services or facilities to subscribers
42025Calling or Called party identification service
42034Calling party identification service
42059Making use of the calling party identifier
H04M 3/436
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
MTELEPHONIC COMMUNICATION
3Automatic or semi-automatic exchanges
42Systems providing special services or facilities to subscribers
436Arrangements for screening incoming calls ; , i.e. evaluating the characteristics of a call before deciding whether to answer it
Applicants
  • BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY [GB]/[GB]
Inventors
  • THOMPSON, Simon
  • CLAXTON, Robert
Agents
  • BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY, INTELLECTUAL PROPERTY DEPARTMENT
Priority Data
19165765.928.03.2019EP
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) SPOOF CALL DETECTION IN TELEPHONE NETWORK
(FR) DÉTECTION D'APPEL D'USURPATION DANS UN RÉSEAU TÉLÉPHONIQUE
Abstract
(EN)
Computer-implemented methods of placing and processing calls in a communications network are provided. The computer-implemented method of processing calls in a telephone network comprises: identifying a plurality of calls that have been made by a particular telephone number to telephone numbers in the telephone network; determining whether a sequence in which the calls were placed corresponds to a correct order for calling those telephone numbers, the correct order being determined based on a predetermined order for calling telephone numbers in the telephone network; and determining that one or more of the calls were made by spoofing the particular telephone number if the sequence in which the calls were placed does not correspond to a correct order.
(FR)
L'invention concerne des procédés mis en œuvre par ordinateur de placement et de traitement d'appels dans un réseau de communication. Le procédé mis en œuvre par ordinateur de traitement d'appels dans un réseau téléphonique consiste à : identifier une pluralité d'appels qui ont été effectués par un numéro de téléphone particulier vers des numéros de téléphone dans le réseau téléphonique; déterminer si une séquence dans laquelle les appels ont été placés correspond à un ordre correct pour appeler ces numéros de téléphone, l'ordre correct étant déterminé sur la base d'un ordre prédéfini pour appeler des numéros de téléphone dans le réseau téléphonique; et déterminer qu'un ou plusieurs des appels ont été effectués par usurpation du numéro de téléphone particulier si la séquence dans laquelle les appels ont été placés ne correspond pas à un ordre correct.
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