WO2026139863 - SYSTEM AND METHODS FOR CALL ANTI-SPOOFING IN PRIVATE BRANCH EXCHANGE (PBX) SYSTEMS
National phase entry is expected:
Publication Number
WO/2026/139863
Publication Date
02.07.2026
International Application No.
PCT/IB2025/063350
International Filing Date
22.12.2025
Title **
[English]
SYSTEM AND METHODS FOR CALL ANTI-SPOOFING IN PRIVATE BRANCH EXCHANGE (PBX) SYSTEMS
[French]
SYSTÈME ET PROCÉDÉS D'ANTI-USURPATION D'APPEL DANS DES SYSTÈMES D'AUTOCOMMUTATEUR PRIVÉ (PBX)
Applicants **
INSOUNDZ LTD.
Inventors
GOSHEN, Tomer
WINEBRAND, Emil
Priority Data
63/738,306
23.12.2024
US
Application details
| Total Number of Claims/PCT | * |
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International Searching Authority |
ILPO
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| Recordal of a Change of the Applicant's Name/Address |
Change of Applicant's Name and Address
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| Type of Assignment |
The Standard Agent's Assignment
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| Applicant's Legal Status |
Legal Entity
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| Entry into National Phase under |
Chapter I
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| Patent Delivery |
Send the Letters Patent by Courier
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| Translation |
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Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing, Examination, Granting | 2262 | |
| EPO | Filing, Examination, Granting | 14071 | |
| Japan | Filing, Examination, Granting | 2377 | |
| South Korea | Filing, Examination, Granting | 2545 | |
| USA | Filing, Examination, Granting | 5940 |
Total:
27,195
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Abstract[English]
A method for detection of a spoof call comprises: receiving a first voice response in response to a received call from a caller's device; augmenting the first voice response with a first watermark signal; sending the augmented first voice response to the caller's device; receiving a second voice response from the caller's device, wherein the second voice response is expected to contain therein an echo of the first watermark signal; analyzing the second voice response to determine the existence of the first watermark signal in the second voice response; and, generating a spoof call indication upon determination of the absence of the first watermark in the second voice response. System, circuit and non-transitory computer-readable medium embodiments are further provided.[French]
Un procédé de détection d'un appel d'usurpation comprend : la réception d'une première réponse vocale en réponse à un appel reçu en provenance d'un dispositif de l'appelant ; l'augmentation de la première réponse vocale avec un premier signal de filigrane ; l'envoi de la première réponse vocale augmentée au dispositif de l'appelant ; la réception d'une seconde réponse vocale en provenance du dispositif de l'appelant, la seconde réponse vocale étant censée contenir en son sein un écho du premier signal de filigrane ; l'analyse de la seconde réponse vocale pour déterminer l'existence du premier signal de filigrane dans la seconde réponse vocale ; et la génération d'une indication d'usurpation d'appel lorsqu'il est déterminé que le premier filigrane est absent dans la seconde réponse vocale. L'invention concerne en outre des modes de réalisation de systèmes, de circuits et de support non transitoire lisible par ordinateur.