Ping Post

Ping-post is the mechanism that drives market-efficient pricing in pay-per-call networks. Instead of a fixed price per call, each inbound call triggers a simultaneous auction across multiple buyers.

Here's how it works: A call arrives with caller details (geography, service type, qualification data from IVR). The platform sends an anonymous 'ping' — just the call metadata, never the actual caller — to all active buyers. Each buyer decides in <500ms whether they want the call and what they'll pay. The highest bidder wins the call and it's routed to them.

The intelligence is in what information travels in the ping. CallMatrix pings include geography, service vertical (from IVR keypresses), zip code (from Collect nodes), qualification data (homeowner yes/no), and historical performance metrics (your conversion rate with this buyer). Buyers use these signals to calibrate their bid: a homeowner in California willing to listen to a pitch might be worth $45, but a renter in rural Montana might be worth $8.

From a publisher perspective, ping-post maximizes revenue. Instead of assigning every call to your top buyer (who might be offline or over cap), the auction ensures the call goes to whoever values it most at that moment. If your primary buyer is temporarily capped, the second buyer bids higher and wins. Revenue per call typically increases 20-30% versus fixed routing.

From a buyer perspective, ping-post is cost-efficient: you only pay what the call is worth to you, and you control your spend in real time through bidding strategy.