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Call queuing places incoming calls in a waiting line when agents are busy, then connects callers according to routing rules. Businesses use it to manage call volume, direct inquiries to the right team, and offer hold messages or callbacks while customers wait for someone to answer.
Long waits can challenge even large organizations. The UK’s HM Revenue & Customs reported that callers waited an average of 12 minutes 35 seconds in the call queue during 2025–2026, with the average falling below 10 minutes in March 2026. For your business, managing that wait starts with clear routing rules, enough staff, and a plan for busy periods.
Below, you’ll learn how call queuing works inside a phone system, how it differs from routing, and which queue strategies suit your team. We’ll also cover the features to look for in call queuing software and how to configure your queues to reduce unnecessary waits and call abandonment.
What Is a Call Queue?
A call queue is a virtual waiting line for callers who need to speak with an available agent. It holds calls until the phone system can connect them according to the business’s routing rules.
When setting up a call queue, businesses may opt to use features such as automated greetings, estimated wait times, and music or prerecorded messages for customers on hold, but we’ll get into that later.
What Is Call Queuing?
Call queuing is the process of holding and organizing incoming calls until an agent becomes available. Routing rules determine which callers receive priority and which agents receive their calls.
Contact centers and customer service departments rely heavily on call queuing to manage incoming call volumes and offer a smooth customer experience. Call queues let you prioritize calls, provide real-time updates, and strategically allocate agents, which reduces customer frustration and improves agent productivity.
What Is a Call Queuing System?
A call queuing system combines waiting queues, call distribution rules, and agent availability settings to manage incoming calls. It determines where callers wait, which agents can answer, and what happens if the queue fills up or the wait becomes too long.
For example, a business might create separate queues for sales and support. Each queue can have its own greeting, assigned agents, operating hours, and overflow destination.
What Is Call Queuing Software?
Call queuing software manages waiting calls, applies routing rules, and gives teams tools to monitor queue activity. It may be part of a business phone service or a broader contact center platform, with available features varying by plan.
Compare software against your actual call flow. Check queue capacity, distribution methods, callback options, reporting, integrations, and overflow handling before choosing a plan.
Call Queue vs. Call Routing: What’s the Difference?
These two terms get used interchangeably, but they solve different problems. Is your issue where the call goes, or what happens while it waits?
Call routing decides the destination. It answers: “Which agent, department, or location should handle this call?” Rules can be based on time of day, caller ID, or IVR selections.
Call queuing manages what happens once the destination is chosen but no agent is free. It answers: “How do we hold this caller without losing them?”
| Factor | Call Routing | Call Queuing |
|---|---|---|
| Core function | Directs calls to the right agent or team | Holds callers in line until an agent is free |
| Triggers when | A call arrives | No agent is immediately available |
| Caller experience | May involve menu choices or transfers | Visible: caller hears hold audio and updates |
| Key metric | First-call resolution rate | Average wait time and abandonment rate |
Call routing and call queuing work together. Routing directs callers to the appropriate destination, while queuing manages the wait when eligible agents are unavailable. Configure both alongside overflow rules, so callers have a clear next step when your team cannot answer.
How Does a Call Queue Work in a Business Phone System?
When a customer calls a business, an automated business phone system feature called an Automatic Call Distributor (ACD) receives the call. It may identify the caller (often using Caller ID) and initiate an Interactive Voice Response (IVR) system for self-service or information gathering. If all agents are busy, the system places the call in a queue.
Here’s a breakdown of the key steps involved:
1. Call arrival and reception
The ACD system receives the incoming call and assesses agent availability. If no agent is immediately free, or if the business chooses to prioritize certain messages or menus, the call is placed in a queue.
2. Queue placement and management
The ACD intelligently routes calls to the most suitable queue based on various factors like the reason for the call, the customer’s priority level, or the time they’ve already been waiting.
While in the queue, callers are engaged with custom hold music, periodic announcements about their estimated wait time, or in-queue self-service options and callbacks to improve the experience. Businesses can use this time to share helpful tips, product information, or other relevant content.
3. Intelligent call distribution and agent allocation
As an agent becomes available, the ACD distributes a waiting call according to your configured rules. Depending on the system, those rules may use a fixed agent order, circular distribution, skills, language, or caller priority.
The call center software routes the call to the appropriate agent, ensuring efficient handling of customer inquiries.
4. Post-call processing and optimization
Once the call ends, the system logs the interaction, updates key performance indicators (KPIs), and may trigger automated surveys to gather customer feedback and monitor service quality.
Managers can use queue reports to adjust staffing, routing rules, and overflow settings. Advanced analytics and automation vary by provider and plan.
Benefits of Call Queuing
Well-implemented call queuing manages incoming calls better and creates a positive experience for both your customers and team. Let’s see the main benefits:
- Improved customer satisfaction: Shorter wait times, proactive communication, real-time updates, and personalized service create a positive customer experience, which drives customer loyalty and enhances brand perception.
- Better agent productivity: Balanced workload distribution, prioritized call handling, and skills-based routing enable agents to work more efficiently and effectively, leading to improved job satisfaction and reduced burnout.
- Higher first-call resolution: Connecting customers with the most qualified agent increases the likelihood of resolving issues on the first call, saving time and resources for both customers and your business.
- Optimized operational efficiency: Efficient queuing and agent allocation lead to shorter hold times and reduced call abandonment, resulting in significant cost savings and improved resource utilization.
- Data-driven insights: Call queuing systems provide valuable insights into customer behavior and agent performance, allowing you to identify areas for improvement and make informed decisions to optimize your operations further.
Types of Call Queues
Call queuing is highly customizable. Businesses can choose the approach that best aligns with their needs and priorities. These approaches cover caller prioritization and agent distribution.
1. Linear call queue
Linear routing offers calls to agents in a fixed order, starting with the first agent on the list for each new call. If that agent cannot answer, the system tries the next one. This suits teams that want designated agents to answer first, with others providing backup.
It’s easy to understand and manage. Little configuration is needed after the initial setup. You can hand over a call queue to a new IT or call center manager, and they know exactly what’s in place.
2. Circular call queue
Circular routing rotates call offers through an ordered list of agents rather than starting with the first agent each time. The next call continues from the next position in the rotation, subject to agent availability and system settings.
It works best for teams with similar skills handling the same types of calls. It spreads call offers across the team, though differences in call length and availability can still produce uneven workloads.
3. Priority queues
This queue type allows you to prioritize certain calls based on predefined criteria like customer value, urgency, or the type of inquiry, ensuring critical issues are addressed first. Some examples of priority criteria include high-value customers, emergency service requests, or technical support issues.
Priority call queues let businesses offer premium service to key customers or expedite urgent inquiries, a valuable selling point for clients demanding swift support.
They’re ideal for small businesses and businesses with diverse customer needs, where some clients require or anticipate faster service. They also suit customer service teams handling sensitive cases that require prompt attention.
4. Skills-based routing
Skills-based routing matches callers with agents possessing the specific expertise needed to handle their inquiries, increasing the likelihood of first-call resolution and improving customer satisfaction.
For example, a customer calling about a tablet could reach an agent trained in that product rather than a general support queue.
Skills can include:
- Multilingual support
- Technical knowledge
- Familiarity with certain products or services
- Omnichannel capabilities, such as social media, email, or web chat
Skills-based routing improves first-call resolution (FCR) and shortens call times by connecting customers with the most suitable agent, so they receive accurate and efficient support. Agents handle queries within their areas of expertise, which improves confidence and reduces errors.
Such queues work best for complex customer service environments like tech support or multilingual call centers, especially omnichannel contact centers where agents manage multiple communication channels like SMS and email.
Top Call Queuing Features to Look For
While call queues have many components, especially behind the scenes, here are nine that you should be aware of and look for in your call queuing system.
- Automatic call distribution (ACD): Intelligently routes calls to the most suitable agent, ensuring efficient handling and reduced wait times. Improves customer satisfaction and agent productivity.
- Queue announcements: Keeps callers informed with regular updates on their estimated wait time or position in the queue. Transparent communication helps manage expectations, reduce frustration, and build customer trust.
- Hold music/messages: Enhances the caller’s hold experience with carefully curated music or informative messages.
- Real-time queue monitoring: Helps supervisors track call volumes, wait times, and agent availability in real time to make data-driven decisions and optimize efficiency. Proactive management leads to better resource allocation and reduced wait times.
- Post-call surveys: Gather valuable feedback directly from customers, providing insights to improve service and agent performance. Customer feedback is invaluable for continuous improvement.
- Interactive voice response: Reduces agent workload by offering self-service options and streamlining call routing. Self-service empowers customers and frees up agents for complex issues.
- Queue whisper: Plays a short message to the agent before the call connects, such as the queue name or campaign source. Detailed customer history may be available through a separate CRM integration or screen pop.
- Integration with AI chatbots and live agents: Enables smooth transitions between chatbots and live agents, so customers receive consistent support, no matter the communication channel. An omnichannel approach offers a unified customer experience.
- In-queue callback: Lets callers request a return call instead of staying on hold. Some systems retain the caller’s queue position. Check how your provider handles unanswered callbacks, retries, and closing hours.
These call center features work together to create a smoother, more efficient, and more satisfying calling experience.
How to Avoid Issues With Call Queues
While call queues are invaluable for managing incoming calls, they do come with some challenges.
Let’s see the potential roadblocks and how to proactively address them:
Balancing act: agent workload vs. customer wait times
Striking the perfect equilibrium between keeping agents productively engaged and minimizing customer wait times can be tricky.
Use real-time monitoring and call analytics to get insights into call patterns, agent performance, and customer wait times. This customer intelligence will help you optimize staffing levels, adjust call routing strategies, and make data-driven decisions to achieve the ideal balance.
Handling unexpected call volume spikes
System outages, product launches, or marketing campaigns can trigger sudden surges in call volume, straining your resources.
Implementing proactive overflow strategies, such as virtual queuing, where customers can opt for a callback instead of waiting on hold, or using temporary staffing solutions can help you easily manage these peaks without compromising the customer experience.
Ensuring agent adherence to protocols
While call queuing systems provide structure, agents might occasionally bypass the queue or prioritize certain callers based on personal bias.
Regular training sessions on call queuing protocols and consistent performance monitoring are essential to ensure that agents follow the established procedures, deliver consistent customer support, and maintain fairness in the queuing process.
Mitigating the impact on customer satisfaction
Long call queues are a major source of customer frustration and dissatisfaction. Proactively managing expectations with call center tools and features like real-time wait time updates, convenient callback options, and self-service tools minimizes the negative impact on customers waiting in a queue.
Best Practices for Call Queue Management
When setting up your first (or any) call queue, take note of these best practices to ensure your customers and agents get the best experience.
1. Creating a user-friendly call queue design
Design your call flow with the customer in mind. Avoid frustrating loops and always provide clear exit options, like pressing a specific number to speak with an agent directly or requesting a callback.
Offer options like self-service through IVR systems or online chat, letting customers choose their preferred communication channel.
Also, implement intelligent call routing and auto-attendants to connect customers with the right agents. Configure business-hours and after-hours routing so callers reach available agents or receive an appropriate message and an alternative, such as voicemail.
2. Managing customer expectations
Keep customers informed about their estimated wait time or position in the queue. Offering a callback option shows your respect for their time and reduces frustration.
Have a well-defined plan to manage spikes in call volume. Use IVR systems for self-service, redirect callers to online resources, or temporarily increase staffing during peak periods.
3. Empowering agents and continuous improvement
Integrate your call center with your customer relationship management (CRM) system. An integrated system gives agents valuable customer information, enabling more personalized and efficient customer service.
Features like pop-up windows and advanced call management increase agent productivity and create efficient workflows.
Continuous agent training is necessary for agents to have the skills and knowledge to handle diverse call types effectively. You’ll offer better customer service and reduce wait times for complex queries.
4. Ongoing monitoring & refinement
Monitor key performance indicators and customer service metrics such as average wait time, average handling time (AHT), call abandonment rate, and customer satisfaction scores. Use this customer data to identify areas for improvement, make informed adjustments, and refine your call queue system.
Effective call queue management is a process that requires ongoing monitoring, refinement, and adaptation to meet growing customer and business needs, so use it wisely.
Optimize Inbound Calling With Nextiva
Nextiva’s call queuing phone systems organize waiting calls and route them to available agents. Depending on your plan, you can combine ACD, IVR, real-time monitoring, and callback features to manage call volume and give callers more options while your team is busy.
Explore Nextiva’s call queue features to find a call queuing solution that fits your staffing, operating hours, and support needs. Set routing rules, monitor waiting times, and decide what happens when calls exceed your team’s capacity.
For calls your staff cannot pick up, XBert can answer around the clock, handle routine questions, book appointments, and transfer callers who need human support according to your configured rules.
Answer more inbound calls with XBert.
Handle calls your staff cannot pick up and route callers who need your team’s attention.
Frequently Asked Questions About Call Queue
Start with your customer expectations and the cost of a dropped call, then test a conservative threshold and adjust based on abandonment patterns. Many teams set different thresholds by queue type, for example sales versus support, to match urgency and revenue impact.
Focus on outcomes that reflect both customer experience and efficiency, such as service level (percent answered within a target), average speed of answer, abandonment rate, and first-contact resolution. Pair those with operational metrics like occupancy and schedule adherence to ensure gains are sustainable.
Keep priority rules simple, documented, and limited to situations with clear business or safety justification. Use separate priority queues or caps on priority volume so the standard queue still moves predictably during peak times.
Use multiple queues when call types require distinct expertise, different operating hours, or different service targets. A single shared queue can work well when agents are broadly cross-trained and you want the system to pool capacity to reduce variability during spikes.
If you record calls or store transcripts, confirm consent requirements, retention policies, and access controls that match your region and industry. Also review how caller data is displayed to agents and supervisors, ensuring least-privilege access and secure storage for logs and recordings.
Keep messages short, rotate them sparingly, and prioritize clarity over cleverness. Callers mainly want reassurance that the line is active. Provide useful next steps like self-service URLs or text options, and avoid overly frequent interruptions that restart hold audio.
Launch in phases, starting with one team or one call type, then expand once metrics stabilize. Before going live, test edge cases like after-hours handling, overflow destinations, and callback behavior, and train agents on what callers will hear so they can respond consistently.
