Disclaimer: BatchDialer does not provide legal advice. This article is for informational purposes only. Before starting a cold calling campaign, we recommend researching applicable laws and seeking legal advice as needed.
| Quick Answer: Abandoned call rate is the percentage of answered telemarketing calls that don’t get connected to a live agent within 2 seconds, typically because the dialer is placing more calls than one agent can answer at a time. |
Minimizing abandoned calls helps maximize every outreach opportunity while ensuring seamless compliance with federal regulations. Optimizing your call management protects your brand reputation and improves the overall experience for your prospects.
In this article, we’ll define abandoned call rate and cover its common causes, ways to lower it, and how to choose the right dialing mode for your campaign.
Key Takeaways:
Abandoned call rate is the percentage of marketing calls that aren’t answered by a live agent.
Many abandoned calls result from using a multi-line dialer, which involves calling multiple numbers at once. If multiple calls are answered simultaneously, there may be too few agents to accept them, and some may go unanswered, increasing the abandoned call rate.
Here’s how to calculate your abandoned call rate:
Abandoned Call Rate = Number of Abandoned Calls / Number of Calls Answered by Prospects
For example, if there were 2 abandoned calls across a total of 100 calls answered by prospects, your abandoned call rate would be 2% (2 / 100 = 0.02).
Important Note: Keep in mind that different dialers and companies may define abandoned calls differently. For instance, BatchDialer also marks answered calls that end when the contact hangs up as abandoned calls.
Since there are many similar metrics to abandoned calls, let’s compare and contrast them:
| Call Type | Definition |
| Abandoned Call | A call that is answered by a live prospect but isn’t connected to a live agent (can also include hang-ups) |
| Unanswered Call | A call that rings on the prospect’s end but is never picked up |
| Dropped Call | A call that is unintentionally disconnected due to network or system issues |
| Disconnected Call | A phone number that is no longer in service or a call that was ended mid-conversation |
| Missed Call | Essentially the same as an unanswered call, but from the recipient’s point of view |
Now that you know what abandoned calls are (and aren’t), here are their most common causes:
According to the Telephone Consumer Protection Act (TCPA), you may abandon no more than 3% of all telemarketing calls that are answered live by a person, as measured over a 30–day period for a single calling campaign.
If a single calling campaign exceeds a 30–day period, the abandonment rate is calculated separately for each successive 30–day period or portion thereof during which the campaign continues.
The TCPA defines a call as “abandoned” if it is not connected to a live sales representative within 2 seconds of the called person’s completed greeting.
Furthermore, whenever an agent is not available to speak with the person answering the call within 2 seconds after the called person has completed their greeting, the telemarketer or the seller must provide:
Finally, you must maintain records establishing your compliance with these abandoned call requirements.
To lower your abandoned call rate, follow these best practices:
Reduce the number of lines dialed per available agents so fewer calls connect simultaneously without someone ready to answer.
Schedule more agents during times when agents are historically more likely to pick up. This way, you’re less likely to be forced to abandon calls when it’s busy.
Streamline post-call note-taking and call labeling so agents can free up faster for the next call. For example, BatchDialer comes with automatic call tagging and AI-generated call summaries in its Pro and Enterprise plans.
You can’t improve what you don’t measure. Use live dashboards to catch call abandonment rates creeping toward the 3% threshold and adjust your call pacing before it’s too late.
Move from predictive to rapid-fire or preview dialing when call volume is lower or agent availability is tight, since those modes place calls at a 1:1 ratio (more on this next).
Not every dialing mode involves juggling multiple potential calls at a time (and being forced to abandon some). If call volume isn’t a priority, you may consider a rapid-fire or preview dialing mode. Here’s when to choose which mode:
| Definition | When to Use | |
| Multi-Line Dialing | Calls multiple numbers simultaneously (up to 5 per available agent with BatchDialer) | Best for high-volume outbound campaigns with a large enough agent team to absorb simultaneous connects |
| Rapid Fire Dialing | Dials one number per available agent automatically, moving to the next contact as soon as the previous call ends | Good middle ground for teams that want speed without the compliance risk of abandoned calls from multi-line dialing |
| Preview Dialing | Gives the agent time to review the prospect’s background details before they manually push a button to place the call | Best for high-value, complex, or sensitive conversations where personalization and context matter more than call volume |
Whether you’re running a high-volume call campaign or a small, focused one, BatchDialer lets you seamlessly toggle between multi-line, rapid-fire, and preview dialing modes. This way, you can keep your call abandonment rates to a minimum and stay compliant with TCPA regulations.
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An abandoned call is a call answered by a live prospect that isn’t connected to a live agent within 2 seconds of the prospect’s greeting.
Abandoned call rate (or abandon rate) is the percentage of telemarketing calls answered by a live person that never get connected to a live agent.
The abandoned call rate formula is: number of abandoned calls / total number of calls answered by prospects.
A good abandoned call rate stays comfortably under the TCPA’s 3% legal limit.
Yes. Adjusting your call-to-agent ratio, reducing agent wrap-up time, and switching dialing modes during high-answer-rate periods can all reduce abandoned calls without necessarily reducing the total number of calls you place.