What Is Call Masking?

Call masking is a technique that routes a call through an intermediary number, so neither the publisher nor the advertiser sees the other’s real phone number. Call masking prevents the consumer’s phone number from being exposed or harvested and hides the real endpoint of a call, so publishers and buyers can’t quietly cut the network out and make a deal directly.

Why Call Masking Matters in Pay Per Call

For an affiliate network handling hundreds of publishers and buyers, it’s all about security and control. A publisher who sees a buyer’s direct line, or a buyer who captures a consumer’s raw number, suddenly has everything needed to take the next deal off-platform.

Likewise, exposing and storing consumer numbers loosely is prohibited by the CCPA.

How Call Masking Works

Call masking works by putting a proxy number between the two parties. When a consumer dials, the call routes to an intermediary number from a pool, and the platform connects it to the real destination behind the scenes. Neither side sees the other’s actual line. When the interaction is over, the proxy can be returned to the pool or kept alive for as long as the business relationship requires.

Take, for example, home services ads. The displayed phone number isn’t the contractor’s – it’s a tracking number that routes to whichever buyer wins the call, so the contractor’s real line never shows up on the consumer’s phone.

DNI & Call Masking With Phonexa

Every call in Phonexa’s Call Logic flows through a unique tracking number assigned with DNI, so the consumer reaches a number you own rather than the buyer’s direct line, and the platform stays in the middle of every connection. On top of that, you decide who can see what.

With Call Logic, you can:

• Route every call through tracking numbers (DNI), so real endpoints stay hidden behind the platform
• Keep consumers, publishers, and buyers connected without exposing each other’s phone numbers
• Set granular access levels, so partners see only the data they need, shutting down lead poaching and data spillage
• Record and audit calls for compliance without leaking the underlying number
• Tie every call back to its source for full attribution across your ping tree