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www.voicetrust.com © VOICETRUST eServices - strictly confidential
Leader in Identity Management and Digital Payments
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The Wonderful world of Biometrics Welcome to
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Biometrics is, in the simplest definition, something you are.
It is a physical characteristic unique to each individual.
Has been in use to identify individuals as early as the ancient Egypt.
Today, it is becoming more and more popular to identify and authenticate
people for accessing secure areas and systems.
What is Biometrics ?
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Face Recognition
Finger Printing
Hand Geometry
Palm Vein
Iris Recognition
Voice Recognition Retina Scan
Signatures
DNA
Biometric Types
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Voice Biometrics
While pins and passwords will become a relic of the past, voice is emerging as a viable authentication method for online and mobile transactions. Known as ‘Voice Biometrics’ or ‘VoicePrint’, this unique method will become the preferred way of conducting safe and secure financial transactions.
A voice print is as distinctive as a finger print or palm print, thereby separating one individual from another. As a unique, unmistakable authentication system, Voice Biometrics will prevent the risk of unauthorized access, duplication and fraudulent access to business applications.
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National & Homeland Security Securing borders, Counter-terrorism, Intelligence gathering, Sample collection of known
terrorists.
Law Enforcement
To identify criminals and/or prove a crime in the court of law.
Enterprise & E-government Services
Identity Management for government entities like Emirates Identity Authority (EIDA).
Banking Transactions
For secured personal details and business transactions such as Online banking,
POS, Tele-banking.
National & Homeland Security
Law Enforcement Enterprise & e-
Government Banking Transactions
Identity Management
Application Domains
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General Information about biometrics…
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Errors
Accepting the wrong person Terms: False Acceptance (FA) False Positive (FP) False Match (FM) False Alarm The rate (probability): False Acceptance Rate (FAR) False Positive Rate (FPR) False Match Rate (FMR) False Alarm Probability
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Errors
Rejecting the right person Terms used: False Rejection (FR) False Negative (FN) False Non-Match (FNM) Miss The rate (probability): False Rejection Rate (FRR) False Negative Rate (FNR) False Non-Match Rate (FNMR) Miss Probability
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Customizing Error Rates
Change the threshold to customize error rates.
Lower the threshold to decrease the False Rejection Rate
This will increase the False Acceptance Rate
Sue
Score
Rose John Bob Allan
False Rejection
threshold
False Acceptance
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DET (Detection Error Trade-off) Curve
Plot that maps error probabilities
Equal Error Rate (1.1%) Miss Probability = 1.1 % False Alarm = 1.1%
Fals
e R
ejec
tio
n R
ate
(%)
False Acceptance Rate (%)
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Errors
Equal Error Rate (EER) The rate where:
False Acceptance Rate =
False Rejection Rate
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ROC (Receiver Operating Characteristic) Curve
Similar to DET curves
Plots:
– error rates (false acceptance vs false rejection) or
– sensitivity (e.g. true acceptance vs false acceptance)
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Let’s look at a few types of biometric systems...
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Resistance to Spoofing?
Liveness Detection
Can the system detect that the biometric sample is not from a live person?
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Fingerprint Recognition
Features Minutiae
Patterns
Sensors Optical
Ultrasonic
Capacitance
Captures ridges and valleys on the surface of a finger
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Fingerprint Recognition
Minutia Features:
Ridge ending
Bifurcation
Short Ridge
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Fingerprint Recognition
Features: Patterns
Arch, Loop or Whorl
ARCH LOOP WHORL
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Fingerprint Recognition
Sensor: Optical
captures a digital image (camera)
Potential problems:
– Scratched or dirty touch surface
– Quality of the skin on the finger
• Dirt, marked fingers
• Eroded skin (can cause fingerprint to not be visible)
– Easily fooled by an image or fake fingerprint
– Liveness detector required
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Fingerprint Recognition
Sensor: Ultrasonic (look beneath the skin)
– Uses high frequency sound waves to penetrate the epidermal layer of skin
– Reflected waves form image of the fingerprint
Advantages:
– Does not depend on clean, undamaged skin
– Not affected by scratched or dirty sensing surface
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Fingerprint Recognition
Sensors: Capacitance
– Uses electrical current to generate an image of ridges and valleys
Two parallel-plates are used:
– the sensor plate, and
– the conductive dermal layer (under the top skin layer called the epidermis)
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Fingerprint Recognition
Passive capacitance senses the volume of air in valleys.
Active capacitance applies voltage in a charging /discharging cycle and compares voltages.
Advantages:
– Harder to spoof
– Not impacted by unclean fingers, damaged epidermal skin or unclean sensing surface
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Facial Recognition
Captures facial features
Features Landmarks Structure Textures
Sensors Digital Camera 3D sensors
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Facial Recognition
Features: Landmarks & Structure
– Identify relative position, size, and/or shape of the eyes, nose, cheekbones, and jaw, for example
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Facial Recognition
Features: Textures
– Uses visual details of the skin (lines, patterns, spots)
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Facial Recognition
Sensor: Digital Camera
– Any standard digital camera can be used. Facial recognition apps now exist for most smartphones.
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Facial Recognition
Advantages:
– Uses existing devices
Disadvantages:
– Performance depends on conditions (lighting, angle,…)
– Obstructions cause problems (e.g. sunglasses, long hair)
– Profile views problematic
– Facial expressions can cause performance problems (e.g. large smile)
– Many systems are easy to spoof with photos or digital images
– Liveness detection required
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Facial Recognition
Sensor: 3D sensor/scanner
– The device captures the 3D geometry of a person’s face (contour of eye sockets, shape of nose, chin,…)
Advantages:
– Not impacted by changes in lighting
– Works from multiple viewing angles
Disadvantages:
– Requires a special camera, or
– A standard camera must capture many angles. Significant post-processing is required.
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Voice Biometrics
Captures physical and behavioral vocal features
Features Anatomical features comprising of size and shape of vocal tract (lungs, throat, mouth, tongue)
Behavioral features (accent, inflection, pitch, …)
Sensors Telephone, mobile, microphone
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Voice Biometrics
Two types of voice biometrics:
1. Text dependent or “fixed sentence”
2. Text independent or “free-speech”
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Voice Biometrics
Text-Dependent
Requires matching of specific utterances
Enrollment Verification Example 1 “My voice is my password” “My voice is my password”
Example 2
“one”, “five”, ”seven”, ”nine” “nine”, “five”, “one”, “seven”
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Voice Biometrics
Text-Independent
Based on free-form speech
Enrollment Verification or Identification
A sample of a person speaking in any language and saying any words.
A sample of a person speaking in any language and saying any words
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Voice Biometrics
Advantages
– Does not require a special capture device (uses existing microphones, telephones and mobile devices)
– Can be used locally or remotely
– Non-intrusive
– Convenient
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Voice Biometrics
Advantages – Text Dependent
– Short enrollment process
– Short verification process
– Accurate with a short audio sample
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Voice Biometrics
Advantages – Text Independent
– Can enroll speakers from free form speech, including existing recordings.
– Can perform identification from free-form speech
– Can perform verification during a free-form conversation
– Can be used in combination with ASR for authentication with a random pass-phrase, preventing replay attacks
– Can be used covertly
– examples:
– Real-time Identity AlertsTM
– detect person of interest on a signal intercept
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Voice Biometrics
Disadvantages - Text-Dependent:
– Vulnerable to replay attacks
– Channel variability not often handled adequately – Enrollment and Verification should be performed on the same channel (telephone, cell phone, microphone)
– Most systems have difficulty when a speaker has a cold (channel variability issue)
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Voice Biometrics
Disadvantages - Text-Independent:
– Requires more data during enrollment (typically 30 seconds or more)
– Verification/Identification performance not as accurate as text-dependent, especially with short utterances
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Eye Biometrics
Two types of eye biometrics:
Iris Recognition Retinal Recognition
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Iris Recognition
Features - Localizes inner and outer boundaries of the pupil - Extracts a bit pattern encoding
Sensor Camera (uses subtle infrared illumination to capture intricate details)
Captures intricate details of the iris
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Iris Recognition
Advantages:
– Accurate (one of the most accurate of biometric technologies)
– Fast & Safe
– Irises are stable – they do not change over a lifetime (except in the case of injury)
– Resistant to false matching (FAR = 1 in 1.2M)
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Iris Recognition
Disadvantages:
– Some devices can be fooled by high quality images
– Some devices are difficult to adjust
– The eye must be line-up correctly
– Liveness detection required (e.g. can use light to invoke pupil dilation)
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Retinal Recognition
Capture the unique patterns of blood vessels at the back of the eyeball by casting a beam of low-energy infrared light into a person’s eye as they look through a scanner's eyepiece
Iris
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Retina Biometrics
Advantages: – Retinal patterns are highly distinctive traits – Every eye has its own totally unique pattern
of blood vessels (the eyes of identical twins are distinct)
– Each pattern normally remains stable over a person’s lifetime (can be affected by disease)
– Considered one of the best biometric for performance/accuracy
– Used for access control in very high security environments
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Retina Biometrics
Disadvantages: – Intrusive and inconvenient – Ineffective for the blind and those with
cataracts – Affected by disease such as glaucoma,
diabetes, high blood pressure, and autoimmune deficiency syndrome
– Capture is difficult. (An individual must place their eye very close to the lens of the retina-scan device and remain perfectly still while focusing on a revolving light)
– Any movement can interfere with the process. (Enrollment can easily take more than a minute)
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Palmprint Biometrics
Similar to fingerprint systems
Palmprint systems use ridges, principal lines and wrinkles on the surface of the palm
Advantages:
– Larger surface provides for a greater number of possible features for extraction
Disadvantages:
– Palmprint scanners are usually bulkier and more expensive than fingerprint scanners
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Hand Geometry Biometrics
Uses the size and shape of the hand
Advantages:
– Ease of use
Disadvantages:
– Hand geometry is not unique and should be combined with another form of verification
– Not recommended for identification (unless combined)
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Some behavioral biometrics…
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Gait Biometrics
Analyzes human motion (‘locomotion’)
Advantages:
– Can be measured from a distance
Disadvantages:
– Not as reliable as other biometrics
– Gait impacted by footwear, terrain, fatigue, injury, training/weight loss
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Typing Rhythm Biometrics
Uses keystroke dynamics (rhythm) such as “dwell time” (key-press time) and “flight time“ (time between key up and key down)
Data is obtained by keystroke logging. The phrase typed is of no use. How a phrase is typed is of importance.
Advantages:
– Can detect when an authenticated user has been replaced at the keyboard
Disadvantages:
– Not as reliable as physical biometrics
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Signature Biometrics
Uses the physical characteristics of signing such as pressure applied, speed, and stroke order. (Some systems also compare the actual signature image.)
Advantages:
– Difficult to mimic signing behavior (easier to mimic the signature)
– Low false acceptance rate
– Not perceived to be invasive
Disadvantages:
– People don’t always sign in a consistent manner
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Into the intriguing world of Voice Biometrics……
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Natural It is quite natural to
speak.
Low Cost. Does not require any additional hardware
or special device.
Convenient. Allows remote user
authentication
Simple. Can be used with any Telephone or Mobile.
Scalable. Reachable to 4 billion
mobile users
Unique. Generated by 14 body
organs
Robust High accuracy
Voice Biometrics – Advantages
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Uniqueness of the Human Voice
Voice biometrics differs from all other forms of biometrics as voice is a complex function created and generated by at least 14 different physical organs.
FIG: PHYSICAL ORGANS RESPONSIBLE FOR CREATING UNIQUE CHARACTERISTIC PARAMETERS & DATAPOINTS
In a 4-second voice sample, there are over 200,000 data points with 1,200 characteristic parameters
The spoken phrases are rich in vowels. VOICETRUST has patented the selection of such phrases according to their phonetic suitability.
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Using Voice Biometrics mainly consists of the following two processes. 1. Enrollment / Registration
a. This is the process of capturing voice samples from the user through a Telephone or a mobile device and feeding this data to the Voice biometric engine.
b. The Voice biometric engine uses these samples to generate what is known as a unique “Voice-Model” or a “Voice-Print” for each individual.
2. Verification / Authentication Once the user’s Voice-Print is already available in the system, the user can gain remote
access to various services by going though a Voice verification process.
a. Here, the user is challenged by the Voice Verifier to say or repeat some words/sentences using a Telephone or a Mobile device.
b. The Voice Verifier compares the user’s speech against the stored “Voice-Print” and based on the results of the comparison, either provides or rejects access to the user.
Using Voice Biometrics – The Process
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In the News around the World
Voice Biometrics ….
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May 03, 2009. Philippines Pension Scheme Uses Voice Biometrics The Philippines government has rolled out voice biometric service for its GSIS (Government Service Insurance System) pension payments service for about 1.5 million pensioners. The service makes it possible for pensioners to carry out financial transactions with GSIS over the phone, rather than at GSIS offices and kiosks.
June 11, 2009. National Australia Bank replaces PINS with Voice Biometrics Voice-based security solution is now available to NAB’s 3.3 million personal banking customers . The new speech security service will enable customers calling NAB’s customer contact centre to register their voice pattern and use this for authentication on subsequent calls.
Voice Biometric services – in the News
2004. VolksWagen Bank introduces voice biometric Services One of the largest providers of internet-based banking services in Germany with around 940,000 customers and a consolidated asset base of Euro. 34 billion, VW bank launches voice biometric services for password resets for it’s internal staff.
2001 Allianz Group launches voice recognition system for password reset One of the leading integrated financial services providers worldwide with 151,000 employees worldwide, and more than 76 million customers in about 70 countries, Allianz Bank launches automated password reset solutions using voice biometrics.
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12 June, 2009. Australian financial services security using voice biometrics Telephone customers of Aviva Australia financial services group are authenticated using voice biometrics system. In what is a first for the Australian life insurance and wealth management industry, Aviva will utilize the voice biometric capability to transform the way it interacts with its customers and advisors. Simply by using the unique characteristics of the member's voice, the identity of callers to Aviva can be quickly verified and the call routed to the most appropriate resource.
19 April, 2010. Banks Adopt High Enrolment Rate with Voice Biometrics services Voice biometric services have been successfully deployed at three banks in Israel for use in contact centres with enrolment rates exceeding 100,000 users per month. Bank HaPoalim, Bank Leumi, and Discount Bank have all rolled out secure Voice Biometric applications to the public. Applications include PIN reset and PIN-less access to contact centres, self-service eBanking password reset and Real-Time Fraudsters Detection.
22 September, 2009. Voice-based self services assist New Zealand Ministry The New Zealand Ministry of Social Development (NZMSD) has won a 2009 Telecommunications Users Association of New Zealand (TUANZ) Award, following the introduction of speech recognition services into its Work and Income contact centre. The centre receives approximately 6.5 million incoming calls annually. The voice-enabled technology has increased the call capacity and enhanced the service to clients.
Voice Biometric services – in the News
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Some services and applications in the banking sector …….
Voice Biometrics….
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Automate caller
recognition
Protect your
Passwords
Automate your
Password resets
via Telephone
Substitute your
RSA Tokens
Secure your shopping
on the web
LAW ENFORCEMENT
VPN LOGIN
PASSWORD RESET
CLICK & CARD
Use your voice to
prove you are alive
Secure your POS
transactions
Protect your Check from
frauds
CHECK VERIFICATION SECURE STUDENT
CLICK AND VOICE
Remotely access your results
and submit your tests
Protect Homeland and
people
User’s Voice Print Voice
Authentication
PROOF-OF-LIFE
VOICESAFE
Applications and Services
CALLER
IDENTIFICATION
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User Enrolls by calling the
service.
System Requests for Voice Samples
System Generates a unique Voice-Print for the user and stores in
the database.
Voice Enrollment
User provides voice samples
Customers can enroll for various kinds of services using their voice by calling the service number. The system requests the user to provide his/her voice samples by either asking the user to utter random text or asking the user to repeat the text as uttered by the system. The system uses these samples to generate a unique voice-print and stores this in the user database.
Voice Biometric System
Biometric Engine
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User calls the service.
System challenges the user to repeat
words/digits.
System compares samples with stored
Voice-print.
Secure Tele-Banking
User repeats words/digits.
System provides access to tele-banking services.
1.Transer money. 2.Pay Bills. 3. Change Cash PIN
Customers can now enroll for this service using their voice and subsequently gain access to all tele-banking services by using their voice. This simple service eliminates any chance of the customer account being accessed by any fraudulent means. Below illustration assumes that the user has already been enrolled with the service.
Voice Biometric System
Biometric Engine
Voice Biometric System
Biometric Engine
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Bank
Cheque Verification Request
Secure Check Verification
High net-worth customers can now enroll for this service using their voice and subsequently pre-authenticate their cheques by using their voice to ensure that the cheque has indeed been issued by him (genuine user). This simple service eliminates any chance of a cheque being issued by any fraudulent means. Below illustration assumes that the user has already been enrolled with the service.
User Account
Voice Biometric System
Biometric Engine
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User calls the service.
System challenges the user to repeat
words/digits.
System compares samples with stored
Voice-print.
Automated Password Reset
User repeats words/digits.
Customers can now enroll for this service using their voice and subsequently request for a password reset using their voice. This service fully automates the password reset process, thus eliminating the need to have a manual help-desk staff thereby reducing cost and increasing staff productivity.
System connects to the Banking system and resets
the password.
System converts new password into speech and plays to the User
Banking Systems
Voice Biometric System
Biometric Engine
Voice Biometric System
Biometric Engine
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Ramphastos Investments
VT ME Holding BV.
VoiceTrust eServices Pakistan
VoiceTrust GmbH
VoiceTrust Technologies
Inc
VoiceTrust eServices
North America Inc
VoiceTrust eServcies Canada
VC Bank Ltd
Middle East Europe US Canada
Active Legal Entity By Dec 2011
VoiceTrust eServices
MENA FZ LLC
VT POL FZ LLC
VT mPayments FZ LLC
Within One Year
VoiceTrust Holding BV
Secure Payments
Group*
Group Entity * Secure payments group: 50% voting rights and 43% shareholding.
VoiceTrust Group Structure
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Patent Portfolio
Mobile Telephone system
EP1531459 US 6934849
Voice Access EP 08101082.9
US20080192901 PCT/EP2008/051117
Mobile Signature EP 1953762A2
US20080177550 PCT/EP2008/050782
Virtual Credit Card EP1172771 US 6934849
Voice Token PCT/EP2008/053468
Hybrid Voice Verification
US20080281600
Mobile Money Transfer Prepaid US 11/970,088
Voice ID Card US 11/969,998
Mobile Money Transfer PCT application filed
12/12/2008
Safe Click Shopping
EP 1172770
Phoneme Suitability and Keyword Selection
German patent No. 102007005704
PCT/EP2008/051019
Improved Speaker Recognition
US2007233483 EP1843325
Robust Speaker Recognition
US2007276663 EP1860647 Multi-Level-Technique
for Speaker Verification PCT/EP2008/052023
Replay Attack Recognition EP06010748.9 US 11/482,549
VoiceTrust
IP Portfolio
Our solutions are built on a strong patent portfolio
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Reference customers at a glance
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Contents
Thank You
Estelle Byrne
Business Development Manager
VoiceTrust eServices MENA FZ LLC
Mobile Number: +971 50 259 0275
Email: [email protected]