Phone Number Verification Done Right

Phone Number Verification Done Right

Verifying Users Has BecomeNecessary for Mobile/Web Apps

Spam Attacks By Botse.g., Unwanted messages, link baiting

Fraud & Account Takeoverse.g., Fake listings, hacked accounts

Unreachable Users e.g., Incorrect or stale user information

Not Verifying Users Negatively Impacts Your Customer Retention And Your Brand

Verify users are

real people

Verify users are who

they claim to be

Verify users

are reachable

Phone Numbers Are The Ultimate User Identity

• 6 billion people

• Global reach

Reach

• Control over UX

• Control over Brand

User

Experience

• Out-of-band

• Not easy to fake

Security

• Customer list

privacy

• User info privacy

Information

Privacy

How Phone Number Verification Works

User enters their

phone number into the

app

User receives a

temporary PIN

User enters PIN

code into app

Customer number

is verified

Phone Verification Best Practices

Seamless

User

Experience

Single Account

Per Phone Number

Retry and

Failover

Short Duration For

Code Validity (Minutes)

Customize to Local

Preferences

Track & Analyze

Conversion

The Carrier Network Is Not Fit for

Phone Number Verification

Confusing

Numbering Plans

Latency & Deliverability

SMS

AGGREGATOR

1CARRIER

Security Exposure with

Each Additional Hop

Complex Regulations

3CARRIER

2CARRIER

1

2

3

4

1

2

3

4

Enterprise

Carrier

Network Process

With Traditional Industry Conversion of 65%,

It Is Complicated to Get It Right

Each app is biased by its own data leading to increased inefficiencies

› Multi-vendors needed

› Retry logic to build

› Routing & Analytics

› Localization needed

› Fixed vs. Mobile

A/B Testing on :

› Language

› Template

› PIN length

› PIN Expiry

› SMS or Voice

› Pay Per Attempt

› Complex multi-vendor

rate cards

› Payables/FX implications

› Engineering/Ops/

Procurement teams to

manage cost/quality across

hundreds of networks

Increased

Time to

Market

Decreased

User Experiences

& Conversion

Increased

Total Cost of

Ownership

Nexmo Verify:

Phone Number Verification Done Right

Built on Nexmo’s direct to carrier connections, adaptive routing

technology, and experience with verifying over 3 billion phone

numbers.

Verify Phone Numbers AnywhereSimply send Nexmo Verify a phone number and then validate the user entered code

Verify takes care of delivering the code and optimizing multiple parameters to maximize your conversion

Template &

Language

Pin

Length

SMS or

Voice

Failover

MethodRetry

Sequence

& Timing

Alphabetic

or Numeric

Sender ID

70,000 customers

Including 80%

of Messaging Apps

in 235 countries &

territories

How Verify Works

Verification Check

CustomerBackend

VERIFY API

Verification Request attempt

Retries/Failover

User enters PIN

Your <brand>

PIN is 1212

We’ve just texted a code to

+1 (847) 555-0150

1212

End User receives PIN

by SMS or Voice

1

2

1st

Under The Hood: Verify Eliminates Complexity

Reject VoIP, Toll-free and

Premium Numbers

Number Validation

WorkflowRouting

PIN Mgt.RFC6238

Workflow Engine

Template Mgt.

SMS

Voice/TTS

Adaptive Routing™

Direct to Carrier

Billing

Analytics

Pay Per Conversion

API

Maximize Conversion of Valid Numbers

Conversion

Data & Analytics

PSTN Network

Verification

Request

Verification

Check

Verify Applies Best Practices On Your Behalf

Example of Two Users

Application Verify Automatic Conversion

Optimization

Verify

Person 2 In United States

Person 1 In Cyprus

BEST PRACTICES

• Primary Channel: TTS

• Sender ID: Alphabetical Sender

• Language: Turkish

BEST PRACTICES

• Primary Channel: SMS

• Sender ID: Phone Number

• Language: English

Business Impact From Using Verify

Improved Customer

AcquisitionEnhanced

Security

Lower, Predictable

Costs

Instant Global

Reach

Zero Telco or 2FA

experience required

Simple API integration

Fixed & mobile numbers

verified globally

Pay Per Conversion

Flat global pricing –

no rate cards to manage

Dashboard to analyze

costs and performance

Highest deliverability with

Adaptive Routing

SMS or voice selection

and seamless failover

Customization to local

preferences

Spam and fraud

prevention

Low latency PIN delivery

and time based expiry

RFC6238 compliant PIN

generation

Industry Scenarios

SOCIAL NETWORKS,

OTTs & GAMING APPs:

Problem: Spam, Scam, ATO

Solution: Prevent fake accounts

used to create spam by verifying

phone numbers

TRAVEL, TRANSPORT &

RESTAURANTS:

Problem: Unreachable users

Solution: Ensure that you can

alert or notify customers by

verifying numbers.

BANKING & PAYMENTS:

Problem: Fraudulent Transactions

Solution: Authenticate all

transactions with a One Time

Password to prevent fraud.

MARKETPLACES &

ECOMMERCE:

Problem: Fraud, ATO

Solution: Verify users on

registration, password resets,

and suspicious transactions.

Case Study: Streamlining Sign-on to Public

Wi-Fi with Nexmo’s Verify API

THE SOLUTION

THE RESULTS

THE CHALLENGE

• Registration via email yielded

only 30% conversion.

• Using SMS boosted conversions

to 66%.

• Social Zone wanted higher conversion

rate and higher quality information

for customers subscribing to its

hot-spot service.

• With Nexmo Verify, Social Zone boosts

conversion rates to near 85%.

• Improved user experience boosts brand image.

• Social Zone integrated the

Nexmo Verify API into its

registration system.

• Verify relies on both SMS

and text-to-speech services

from Nexmo to increase the

likelihood that recipients

will received crucial

verification codes.

Case Study: Verifying New Users

Around the World with Ease

THE SOLUTION

THE RESULTS

THE CHALLENGE

• pq needed to be able to authenticate

app users anywhere in the world

quickly and reliably.

• pq was to be featured on the Apple

App Store, so it needed a solution it

could integrate quickly.

• Five verification solution providers

had already failed pq’s quality tests.

• pq integrated Nexmo Verify with its sign-on system in only one hour.

• A pq app ready for worldwide user authentication was on the App Store in a matter of days.

• With Verify, subscriber conversion rate is above 80%.

• Verify complements pq’s focus on the customer experience, boosting brand satisfaction among users.

• pq integrated its sign-on system

with the Nexmo Verify.

• Verify relies on both SMS and

text-to-speech services from

Nexmo to increase the

likelihood that recipients will

received crucial verification

codes quickly and reliably,

regardless of where they are in

the world.

Case Study: Stopping Scams at the

Door of Love

THE SOLUTION

THE RESULTS

THE CHALLENGE

• 30% of new site registrants were

from spammers and scammers.

• Registration via email proved

thoroughly unreliable.

• DatesOfAsia personnel lost

valuable hours each week

rooting out scammers.

• 94% global conversion rate with Nexmo Verify.

• Spammer and scammer registrations eliminated.

• DatesOfAsia personnel can now focus on improving the experience of legitimate community members.

• DatesOfAsia was able to integrate and fully test Verify in just 10 hours–with no prior Nexmo experience.

• DatesOfAsia had been

planning to construct its own

SMS-based user authentication

system.

• When it discovered Nexmo

Verify it recognized that

integrating Verify would be

even more effective and far

less costly in both the short

and long terms.

Case Study: Nexmo Verify Instills Confidence

in the Integrity of the Folr App & Community

THE SOLUTION

THE RESULTS

THE CHALLENGE

• Allowing others to track your

whereabouts demands absolute trust

in the authenticity of the other users.

• Email authentication is too easily

spoofed to ensure customer

confidence in other Folr member

identities.

• Authentication needed to be quick

to integrate, global in scope, and

easy to manage.

• Nexmo Verify creates the confidence that Folr users require to embrace the solution.

• Verify PINs act as account passwords, ensuring that only verified users can access their accounts,

and only using registered devices.

• Verify’s global focus makes it easy for Folr users to have their devices and identities validated anywhere in the world.

• Folr integrated the Nexmo

Verify solution into its

mobile app infrastructure.

• Verify matches users

to specific devices.

• One-time use PINs from

Verify function as passwords

to unlock the Folr app on a

registered device.