What is Expected Wait Time (EWT)?
Expected Wait Time (EWT) is an estimate of how long a customer is likely to wait in a queue before an agent becomes available.
It is most commonly used for phone calls, where customers may hear a message telling them their approximate wait time. However, it can also apply to live chat, messaging and other digital contact centre channels.
EWT is calculated using information such as the number of customers waiting, available agents, incoming contact volumes and average handling time.
How is Expected Wait Time calculated?
Expected Wait Time is usually calculated automatically by the contact centre platform using live queue data and historical performance.
The calculation may consider:
Queue length: How many customers are currently waiting.
Agent availability: How many suitable agents are available or likely to become available.
Average Handling Time: How long agents typically spend handling each interaction.
Incoming demand: How quickly new interactions are entering the queue.
Queue movement: How quickly customers are being connected with agents.
For example, if ten customers are waiting but several agents are close to finishing their current interactions, the expected wait may remain relatively short.
Because queue conditions can change quickly, EWT should be treated as an estimate rather than a guaranteed answer time.
Why does Expected Wait Time matter?
Expected Wait Time helps customers understand what to expect before they reach an agent.
Waiting without any information can feel frustrating. A clear and realistic estimate gives customers more control over their experience and allows them to decide whether to remain in the queue, use another channel or request a callback.
Contact centre teams can also use EWT to identify:
- Rising customer demand
- Staffing shortages
- Queue bottlenecks
- Longer handling times
- Changes in service performance
Managing EWT effectively can reduce customer frustration, improve satisfaction and lower abandonment rates.
What affects Expected Wait Time?
Several factors can influence how long customers are expected to wait.
Contact volume: Unexpected increases in calls, chats or messages can quickly create longer queues.
Staffing levels: Too few available agents can increase waiting times, particularly during peak periods.
Average Handling Time: Complex queries may take longer to resolve, slowing down the queue.
Agent skills: Customers may wait longer when only a small number of agents can handle their type of query.
Routing rules: Inefficient routing can send interactions to the wrong queue or prevent available agents from receiving suitable work.
System performance: Slow applications, outages or technical problems can reduce agent availability and increase handling time.
How should Expected Wait Time be communicated?
An expected wait is only helpful when it is reasonably accurate and clearly explained.
Repeatedly telling a customer that their wait will be five minutes when they have already waited for fifteen can damage trust. Estimates should update as queue conditions change and avoid being overly precise when demand is unpredictable.
Customers can also be offered alternatives such as:
- Requesting a callback
- Moving to chat or messaging
- Using a self-service option
- Receiving progress updates while they wait
Clear communication can make waiting feel more manageable, even when demand is high.
Conclusion
Expected Wait Time gives customers an indication of how long they may need to wait and helps contact centres understand how effectively queues are being managed.
Accurate estimates, clear communication and alternatives such as virtual queuing can reduce frustration and give customers more control over their experience.
Request a demo to explore how Cirrus can help you improve queue management, routing and customer experience.
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