Abandon Rate

Abandon rate (also called drop rate) is the percentage of answered outbound calls that are disconnected because no agent is available to handle them. When a predictive dialer dials more lines than there are available agents and multiple calls connect simultaneously, the excess calls are “abandoned” or “dropped” — the caller picks up but hears silence or a recorded message instead of a live agent.

How It Works in VICIdial

VICIdial tracks abandon rate in real time on the campaign dashboard and in historical reports. The abandon_rate_target setting defines the maximum acceptable drop percentage, which the adaptive dialing algorithm uses to govern the auto dial level. When the abandon rate approaches the target, the system automatically reduces the dial level.

When a call is abandoned, VICIdial executes the drop action, which can play a safe harbor message, route to an IVR, or simply hang up. The drop lockout time setting prevents the system from calling the same lead again too quickly after a drop, protecting the customer experience.

Why It Matters

The FCC limits the abandon rate to 3% of answered calls measured over a 30-day period for campaigns subject to the Telemarketing Sales Rule. Exceeding this threshold exposes the organization to significant fines and potential legal action. Beyond compliance, high abandon rates damage brand reputation — consumers who answer the phone to silence or a recorded message are far less likely to engage on future calls and more likely to file DNC complaints.

Monitoring abandon rate should be a daily practice for any outbound operation. VICIdial’s real-time dashboard provides instant visibility, and the adaptive dialer automates the response. For optimization strategies, see the dialer tuning feature page.