Use our call masking service to connect your customers to drivers, delivery personnel, or vendors – without revealing their personal phone numbers.

Powering 7000+ Businesses in 60+ countries

What is Number Masking?

Phone number masking (also known as call masking) is the best way for businesses to safeguard their customers’ identity, and prevent misuse of their sensitive information. This solution works by anonymizing the participating phone numbers by connecting the call through a temporary proxy phone number.

Advantages of
Number Masking

Ensure customer privacy

Your customer’s phone number is never revealed during the transaction. After all, the onus of protecting the customer’s privacy falls on the business

In-platform transactions

Number masking is also the best way to avoid off-platform transactions thereby allowing you to monetize better

Save cost

Call your customers without depleting your employees’ mobile balance. Connecting them via Exotel is more cost efficient

Track & analyse

Track, record and analyse all your customer conversations to gain insights in real-time

How Businesses Use
Phone Number Masking Solution


Managing vendor and buyer conversations

For a marketplace, it’s critical to track and manage all the leads. It’s also important to prevent conversations from going off the platform. Number masking for communication can greatly help you achieve both.


Last-mile delivery tracking

Phone number masking feature allows the delivery agent to reach the customer over a call in case they need to without having access to their phone number.


Driver and customer communication

Using number masking ensures that customer information is not shared with the drivers. This helps in protecting the customer’s privacy and to prevent misuse of sensitive data.

The Exotel Advantage

Highly Secure

ISO 27001:2013 certified information security management system

Patented Solutions

A competitive advantage from patented products

Superior Quality

Best success rates, voice quality, and reduced latency

Scale at Ease

Grow at will, expand without worrying about infrastructure

Superior Reliability

Best in class uptimes of 99.94% including operator uptimes

Best Support

24×7 customer support via phone, email and Twitter



Call masking is a cloud-based call privacy solution that is used by businesses to safeguard their customers’ privacy.

Used mostly by E-commerce, cab aggregator, and food delivery companies, a call masking solution makes use of Voice APIs and a pool of temporary& virtual numbers to connect the customers and the agents, all without revealing the actual phone numbers to each other.

Learn more about phone number masking through our whitepaper here.

To explain this let's take the example of a food delivery company. Whenever a customer places an order, Exotel’s Voice API assigns a temporary virtual number for the transaction and the delivery agent gets a click-to-call button in his/her app.

As soon as the delivery agent clicks on the call button, the temporary virtual number calls the customer’s number, and thus, the delivery agent gets connected. 

This way, as the temporary virtual number acts as a bridge between the two, both the delivery agent and the customer cannot see each other’s real phone numbers.

Read how Swiggy uses Exotel’s number masking solution to protect their customers’ privacy.

This is an especially serious and important question for E‐commerce, Logistics, Cabs on-demand, and Marketplace models of business. These are verticals where the customer’s phone number needs to be shared with the delivery person, a driver, a vendor, etc.

Therefore, in order to safeguard both the customers’ as well as the agents’ privacy, implementing a call masking solution is a must. Download our free whitepaper on Number Masking to get complete details.

Additionally, a big plus point for the businesses is that all the conversations will happen only on their platform, and they get complete control over the call data. 

Following are some of the popular use-cases of phone number masking:

Cab aggregators: Connect drivers and riders without revealing the rider’s phone number.  Read how Ola does it.

E-commerce, Logistics, and Food Delivery: Connect delivery agent and customer without revealing either party’s phone numbers.  Read how Swiggy does it.

BFSI: Connect relationship managers and customers while protecting their privacy.

The number masking solution makes use of 2 call legs to connect the caller and the callee. Therefore, a 2 call-leg price will be applicable here. Also, you need to buy a pool of virtual numbers and an API from our platform to implement this solution.

To get complete information on pricing (and volume-based discounts), please contact our sales team. Alternatively, you can also try our number masking solution free for 15-days by registering here (No credit card required).

Customer Experiences That Speak Volumes


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