A predictive dialer earns its speed by calling slightly more people than you have agents for. Most of the time the maths works out. When it does not, someone answers the phone and hears silence — an abandoned call. Managing that number is the single most important setting on a predictive campaign.
What counts as an abandoned call?
A call is abandoned when a live person answers and is not connected to an agent within a short time window — typically a couple of seconds after they finish their greeting. The abandon rate is the number of abandoned calls divided by the number of calls answered by a live person, usually measured per campaign over a set period.
Why it matters
- Regulation. Many markets cap abandoned calls for telemarketing. In the United States, for example, the Telemarketing Sales Rule sets a maximum of 3% of answered calls per campaign, measured over 30 days, and requires a short recorded message identifying the caller when a call is abandoned. Other countries have their own limits.
- Reputation. Silent calls are one of the main reasons people report numbers as spam.
- Lost conversations. Every abandoned call was a live person who picked up — the hardest part of outbound is already done.
What drives abandon rate up
- Too few agents. Predictive pacing needs enough agents to average out the randomness of answers.
- Unpredictable talk times. If some calls last 30 seconds and others 20 minutes, the dialer struggles to forecast when agents will be free.
- Aggressive pacing settings. A high dial ratio or a high target abandon rate tells the dialer to take more risk.
- Long wrap-up times. Agents in after-call work are not available, even if the dialer expected them to be.
How to tune it safely
- Set the dialer's target abandon rate below your legal limit to leave a safety margin.
- Use a fixed wrap-up time, or ask agents to set themselves to "not ready" when they need more time.
- Switch small teams (fewer than about 8–10 agents on a campaign) to progressive mode.
- Check the abandon report daily, not monthly — a single bad afternoon can push the rolling average over the line.
- Play a short, compliant message on abandoned calls if your market requires one.
Read the right report
Look at abandon rate alongside agent occupancy and contacts per hour. If abandon rate is very low and agents sit idle, pacing is too cautious and you can safely raise it. If abandon rate climbs while agents are fully busy, add agents or slow the dialer down. The goal is a steady balance, reviewed every day the campaign runs.
