May 27, 2025
Contact Center Performance

10 Proven Strategies to Improve Contact Center Efficiency

Rezo
7 Minutes
Contact Center Performance
Published on:
May 27, 2025

10 Proven Strategies to Improve Contact Center Efficiency

Get the inside scoop: key metrics, common issues, and AI solutions to increase Call Center productivity, reduce costs, and improve customer satisfaction
Read Time:
7 Minutes
Rezo

Why are CX Leaders still struggling to run their call center efficiently?  Why do companies still treat call centers as cost centers?  Why do most call center metrics fail to align with actual CX outcomes? The answer is call center efficiency. Despite all the efforts many call centers can’t find the right metrics, call center software,  and can’t unlock their full potential.

Efficiency is the key to great service and running a tight ship. Despite all the efforts many call centers still can’t find the right metrics and can’t unlock their full potential.

In this guide we’ll look at what makes a call center efficient, which metrics matter, common issues and how to improve call center efficiency.

What Exactly is Call Center Efficiency? 

At its core, efficiency in call center operations is about maximizing output relative to input. It reflects how well a contact center manages its resources, its people, processes, and technology to handle customer interactions effectively.

Agents spend considerable time addressing inquiries related to customer accounts, such as billing issues and account resets, and utilizing AI Virtual Agents can streamline these processes by allowing customers to manage their account details independently.

This doesn’t mean rushing customers off the phone rather, it’s about optimizing workflows to resolve customer issues, empowering call center agents, and leveraging AI to ensure every interaction is handled as smoothly and successfully as possible.

An efficient contact center minimizes wasted time and resources while simultaneously enhancing the customer experience and supporting agent productivity.

Call Center Efficiency

Call center efficiency is a crucial aspect of contact center operations, as it directly impacts the quality of service provided to customers. Efficient call centers are able to handle a high volume of calls while maintaining excellent customer experiences, which is important for customer retention and overall business success.

By optimizing call center efficiency, organizations can reduce costs, improve productivity, and increase customer satisfaction rates. In this section, we will explore the importance of call center efficiency and provide an overview of the key metrics and contact center data strategies used to achieve it.

Importance of High Call Center Efficiency  

While cost reduction is certainly a benefit, the importance of contact center efficiency extends far beyond simply cutting expenses.

High call center efficiency is critical for both operational success and customer satisfaction. Here’s why it matters:

Importance of Call Center Efficiency
Importance of Call Center Efficiency

Enhanced Customer Satisfaction Score

Efficient call centers resolve issues quickly, minimizing wait times and boosting customer satisfaction. Fast, effective service builds loyalty and strengthens your brand reputation.

Optimized Operational Costs

AI-powered call allocation streamlines operations and reduces costs per call by dynamically matching Agents to call volume. Because of this optimised scheduling, resources are used effectively even during periods of high demand, increasing the productivity and cost-effectiveness of call centers.

Increased Agent Productivity

Efficient contact center empower agents with the right support, training, and performance insights. This boosts productivity, lowers costs, and leads to better customer experiences.

Improved Client Relationships (Especially for BPOs)

For business process outsourcing (BPO) call centers, meeting Service Level Agreements (SLAs) is important for maintaining client satisfaction and retaining contracts. Understanding the specific context and nature of customer calls enhances service delivery. Measuring the overall satisfaction rate through post-interaction surveys indicates the quality of service provided.

Productivity rates for call center agents generally range from 48% to 87.5%, but with the integration of AI, these figures can be optimized even further.

Call Center Productivity Challenges

Problems Affecting Call Center Efficiency

Getting contact center operational efficiency right isn’t always easy. Many factors can drag performance and call center productivity down. Here are the challenges:

Insufficient Training and Development

Many call centers struggle because agents aren’t getting comprehensive or ongoing training. When staff don’t know or don’t feel confident to handle complex issues, call times increase and customer satisfaction drops.

Old Technology and Inefficient Processes

Relying on legacy software or poorly integrated platforms is a major obstacle. Call center agents
waste time navigating multiple systems or searching for customer info, which slows down service and frustrates both staff and customers.

High Staff Turnover and Burnout

Call center environment is tough and without proper support or career growth opportunities, turnover is high. Constant churn means teams are often understaffed and less experienced, which impacts productivity and service consistency.

Poor Leadership and Lack of Clear Direction

When supervisors don’t provide clear guidance, feedback or support, agents are left unsure of expectations and best practices. This lack of direction means inconsistent performance and missed opportunities for improvement.

Understaffed and Unmanageable Call Volumes

Chronic understaffing means agents have to handle more calls than they can, resulting in longer wait times, rushed calls and increased stress. Call center productivity suffers under these conditions.

Misaligned Performance Metrics

When metrics focus on speed over quality (e.g. average handle time only) agents may rush calls or neglect customer needs. This misalignment hurts productivity and customer satisfaction.

Multitasking and Channel Overload

Agents are expected to juggle multiple communication channels at once. Managing phone calls, emails, chats and social media at the same time increases cognitive load and mistakes.

Inconsistent Quality Assurance

Without regular constructive feedback and consistent quality monitoring agents miss out on opportunities to improve. This means uneven service and persistent inefficiencies.

Key Metrics & KPIs for Call Center Efficiency 

To boost contact center efficiency, it’s essential to track the right center productivity metrics. Monitoring agent productivity, call volumes, and resolution rates helps identify bottlenecks and optimize staffing. AI-powered tools can further streamline operations by dynamically assigning agents and prioritizing tasks.

Here are the most important call center efficiency metrics and KPIs to watch:

Customer Experience Metrics and Net Promoter Score

Customer experience metrics like Net Promoter Score (NPS) and CSAT are essential for understanding how satisfied customers are with your service. These insights help managers quickly spot and address urgent issues.

Agent productivity often suffers due to outdated technology or overwhelming customer demands. Analyzing performance patterns, such as busy days, helps optimize staffing and improve efficiency.

It’s important to distinguish between different metrics and performance indicators for effective management. Employee satisfaction is closely tied to call center productivity, as engaged agents deliver better results.

1. Net Promoter Score (NPS):

Measures customer loyalty and satisfaction by asking how likely customers are to recommend the company.

How it works: Customers rate likelihood on a 0-10 scale, categorizing them as Promoters (9-10), Passives (7-8), or Detractors (0-6).

Formula: (Percentage of Promoters) – (Percentage of Detractors).

Importance: A higher NPS indicates a more loyal and enthusiastic customer base. Analyzing promoter and detractor feedback provides actionable data.

2. Customer Satisfaction (CSAT):

Provides insight into the average customer experience and satisfaction with specific interactions or services.

How it works: Typically measured via post-interaction surveys asking customers to rate their satisfaction.

Formula: (Number of Satisfied Customers / Total Number of Survey Respondents). Often calculated as the percentage of customers giving top scores (e.g., 4 or 5 on a 1-5 scale).

Importance: A high CSAT score indicates a better customer experience. Tracking trends helps identify areas of strong performance and areas needing improvement.

3. First Call Resolution (FCR):

Measures the call center’s ability to resolve a customer’s issue on the first contact across any channel. Also known as ‘First Contact Resolution’ or ‘Issue Resolution Rate’.

Formula: (Total Issues Resolved on First Contact ÷ Total Number of First Contacts) x 100.

Importance: A higher FCR demonstrates agent efficiency and creates a seamless customer experience, reducing callbacks and transfers. It helps assess call quality, agent performance, and training needs. Industry benchmarks range from 70-85%, with top centers exceeding 90%.

Caution: An over-emphasis on FCR can lead agents to rush interactions, potentially hurting CSAT.

4. Customer Effort Score (CES):

Measures how much effort a customer had to exert to get their issue resolved.

How it works: Often uses a 5 or 7-point scale, asking customers how strongly they agree that the service made it easy to handle their issue.

Importance: Higher CES indicates less customer effort and superior service quality. Low CES signals frustration and lost productivity for the customer. Improving CES points to areas for self-service or training improvements.

Agent Training and Performance Metrics

Agent training and performance metrics are essential for measuring the call center productivity and efficiency of contact center agents and teams. Key metrics include the number of interactions handled, resolution rates, and customer satisfaction scores.

AI-driven tools help allocate agents based on call volume and customer needs, improving efficiency. Regular training and immediate feedback ensure contact center agents stay updated on protocols and deliver high-quality service.

Analyzing performance trends and leveraging call data for training boosts both agent productivity and customer satisfaction, while employee satisfaction directly impacts overall performance and costs.

1. Agent Utilization Rate:

Measures the percentage of time agents spend actively handling customer contacts out of their total logged-in time.

Formula: (Total Handled Call Time / Total Logged In Time) x 100. Handled time includes talk, hold, and after-call work.

Importance: Helps assess workforce management and identify top/lower performers. An optimal target is 75-85%, allowing time for breaks and tasks. Ultra-high rates can risk burnout.

2. Occupancy Rate:

Measures the percentage of logged-in time agents spend actively handling contacts vs. being available but idle.

Formula: (Total Handling Time / Total Logged In Time) x 100. Handling time includes talk, hold, and after-call work.

Importance: Indicates how effectively agents utilize available time. A target range is 75-85%. Low rates (below 70%) may signal inefficiencies or excessive idle time. Monitoring ensures staffing aligns with contact volumes. Occupancy Rate provides insights into how effectively agents are utilized.

Caution: Excessively high occupancy rates can lead to agent burnout.

3. Average Speed of Answer (ASA):

Measures the average time it takes for a call to be answered by a live agent.

Formula: Total wait time of all answered calls / Total number of answered calls.

Importance: Assesses contact centers responsiveness and service quality from the customer’s perspective. A common goal is within 60 seconds. Rising ASA signals potential issues with staffing or efficiency. According to industry standards, 8-9 seconds is a decent average answer speed for call center agents across industries. The average ASA in the industry is around 28 seconds or less.

4. Average Handle Time (AHT):

Measures the average duration agents spend on a single customer interaction, including talk, hold, and after-call work.

Formula: (Total Talk Time + Total Hold Time + Total After Call Work Time) / Total Calls Handled.

Importance: Helps set performance benchmarks, identify training needs, and right-size staffing. AHT benchmarks depend on the type of industry and call complexity. Across industries, the average handling time varies from 1:02 to 4:05.

Caution: Balancing AHT with FCR is crucial; excessively low AHT might mean issues aren’t fully resolved, while overly high AHT signals inefficiency.

4. Call Transfer Rate:

Measures the percentage of calls transferred to another agent or department.

Formula: (Number of transferred calls / Total calls) × 100.

Importance: High rates may indicate poor call routing or agent expertise gaps. Minimizing transfers improves CSAT, reduces handling times, and enhances FCR. Target is typically 15% - 30%.

5. Repeat Call Rate:

Measures the percentage of customers who call back within a specific timeframe for the same issue.

Formula: (Number of customers who called back / Total customers) × 100.

Importance: A high rate suggests ineffective issue resolution or agent training gaps. Reducing repeat calls improves FCR, agent productivity, and CSAT. Target is typically 20% - 30%.

6. Agent Turnover Rate:

Measures the percentage of agents who leave the organization over a period.

Formula: (Number of agents who left / Total agents) × 100.

Importance: High turnover indicates potential dissatisfaction or inadequate support. It increases hiring/training costs and impacts service quality. Target is typically 30% - 45% annually.

Overall Call Center Performance Metrics 

Contact center performance is best measured by tracking key metrics that reflect both efficiency and service quality. Contact center leaders and center managers should focus on identifying urgent customer calls to allocate resources effectively and ensure fewer calls require follow-up.

Analyzing performance by day of the week helps optimize staffing, while understanding the difference between metrics and KPIs ensures accurate assessment. Employee satisfaction is crucial, as it directly impacts call center productivity.

AI-driven tools now help agents prioritize tasks, leading to better outcomes and fewer calls. Continuous training of customer support agents and immediate feedback are vital for ongoing improvement. Metrics like CSAT, customer effort score, average handle time, and first response time provide a comprehensive view of contact center performance.

1. Service Level:

Measures the percentage of calls answered within a defined threshold time.

Formula: (Calls Answered in X seconds or less / Total Inbound Calls) x 100.

Importance: Assesses operational efficiency and adherence to customer service standards. A common target is 80% of calls answered in 20 seconds or less. Lower rates signal a need to adjust resources or scheduling.

2. Call Volume:

Measures the total number of inbound and outbound calls handled over a period.

Formula: Total Call Volume = Number of Agent Calls + Number of Self-Service Calls.

Importance: Provides insight into contact center activity, demand changes, and effectiveness of self-service tools. Helps determine scheduling and staffing requirements. Analyzing trends helps align operations with customer needs.

3. Call Abandonment Rate:

Measures the percentage of calls that disconnect before being answered by a live agent.

Formula: (Number of Abandoned Calls ÷ Total Number of Call Attempts) x 100.

Importance: A high rate signals customer frustration with long wait times and potential business loss. Tracking helps identify periods of inadequate staffing. Target is ideally less than 3-5%. It points to issues like understaffing or ineffective routing. Industry benchmarks vary, e.g., Government 7.44%, Transportation 7.40%, Healthcare 6.91%.

4. Cost Per Call (CPC):

Measures the average cost incurred to handle each call.

Formula: Total Cost of contact center Operations / Total Calls Handled. Total cost includes staffing, telecom, technology, and facility expenses.

Importance: Shows financial efficiency. A lower CPC indicates higher productivity. Helps control budgets and allocate resources optimally. Target benchmark is typically $2.70 - $5.60.

5. Percentage of Blocked Calls:

Measures the proportion of incoming calls that receive a busy signal or message indicating all agents are busy.

Formula: Number of blocked calls / Total number of incoming calls * 100.

Importance: A high percentage indicates understaffing, inefficient routing, or inadequate infrastructure.

Call Center Operations

Call center operations involve a range of activities, from handling inbound and outbound calls to resolving customer concerns and providing support. Effective call center operations require a combination of well-trained agents, efficient processes, and advanced technology.

One of the key challenges facing call centers is the need to balance the quantity of calls handled with the quality of service provided. By investing in agent training and optimizing call center processes, organizations can improve the overall efficiency of their call center operations and provide better service to their customers.

Additionally, having access to real-time documentation and data can help call centers identify areas for improvement and make data-driven decisions to lower abandonment rates and improve CSAT.

Strategies for Improving Call Center Efficiency

Call centers can get more efficient by training agents well, routing calls better and automating routine tasks with technology. Using data and analytics helps identify issues, reduce resolution time and escalations. Focusing on key performance indicators (KPIs) means continuous process improvement and better customer service.

AI-Driven Strategies to Improve Call Center Efficiency

  • AI Powered Intelligent Call Routing: AI analyzes caller intent and historical data to route calls to the right agent or department, reducing wait times and first call resolution.
  • Conversational AI and Virtual Assistants: Deploy chatbots and voice bots to manage repetitive questions 24/7, free up agents for complex issues and reduce call volume.
  • Real Time Agent Assistance: AI provides live prompts and suggested answers during calls, helps agents resolve faster and more accurately.
  • Automated Call Summarization and After Call Work: AI tools auto transcribe and summarize calls, reduce manual wrap up time and let agents help more customers.
  • AI Based Quality Assurance and Analytics: AI monitors all interactions for sentiment and compliance, provides actionable insights for coaching and ensures service quality.
  • Predictive Analytics for Workforce Management: AI predicts call volume and customer demand, enables better scheduling and resource allocation.
  • Personalized Customer Experience: AI uses customer data to tailor responses and anticipate needs, increases satisfaction and loyalty.
  • Self Service Knowledge Bases: AI powered knowledge bases help customers resolve issues on their own, reduce inbound call volume.
  • Sentiment Analysis and Escalation Management: AI detects customer frustration in real time, lets supervisors intervene and prioritize urgent cases.
  • Continuous Learning and Process Optimization: AI refines call flows and scripts by learning from each interaction, and drives efficiency improvements.

By integrating these AI-driven strategies, call centers can streamline operations, reduce costs, and deliver superior customer experiences.

Best Practices for Call Center Efficiency

Improving call center efficiency is all about a whole approach that combines ongoing agent training, process optimisation and smart technology. By focusing on these areas and supporting agents with incentives, regular feedback and data-driven insights leads to an increase in call center productivity, reduces costs, and delivers great customer experiences.

1. Set Clear Goals and Measure What Matters

Define specific measurable objectives that align with customer expectations and business priorities. Benchmark your key performance indicators (KPIs) against industry standards to see if your efforts are working.

2. Invest in Agent Training and Engagement

Ongoing training equips agents, along with the support team,  with up-to-date product knowledge, technology skills and customer empathy. Trained, engaged agents resolve issues faster and provide better service; that’s a direct boost to efficiency

3. Leverage Advanced Technology and Automation

Get the latest tools like AI powered chatbots, workforce management software and omnichannel platforms to enhance call center agent productivity . Automation handles the routine, frees up agents to focus on complex issues and reduces manual errors.

4. Standardise Processes and Guided Workflows

Create clear standard operating procedures (SOPs) and guided workflows for common scenarios. That’s consistency, reduces confusion and agents can resolve issues quickly and accurately.

5. Optimize Scheduling and Resource Allocation

Use forecasting and workforce management tools to match staffing levels with call volume trends. That minimises wait times, prevents agent burnout and ensures resources are used efficiently.

6. Monitor Analytics and Continuously Improve agent productivity

Track key metrics like service level, average handling time, first call resolution and call abandonment rate. Use analytics to find the bottlenecks, adjust your strategy and drive continuous improvement.

7. Empower Agents and Foster a Supportive Culture

Give agents the authority to resolve issues and recognition for their achievements. A positive supportive culture increases motivation, reduces turnover and overall productivity267.

8. Balance Automation with Human Touch

Automate the routine but ensure complex or sensitive issues are handled by skilled agents. Finding the balance keeps efficiency without sacrificing service quality17.

By following these best practices call centers can streamline, improve customer satisfaction and get sustainable efficiency gains.

Frequently Asked Questions

How to measure call center efficiency?

Contact center efficiency is measured by tracking key performance indicators (KPIs) that reflect both customer experience and operational performance. The most important metrics include:

  • First Call Resolution (FCR): Percentage of issues resolved on the first contact. Higher FCR means greater efficiency.
  • Average Handle Time (AHT): The average duration of a customer interaction, including talk, hold, and after-call work. Lower AHT (without sacrificing quality) indicates contact center efficiency.
  • Service Level: Percentage of calls answered within a set time (e.g., 80% in 20 seconds).
  • Call Abandonment Rate: Percentage of callers who hang up before reaching an agent—lower rates mean better efficiency.
  • Agent Utilization & Occupancy Rate: Measures how much of an agent’s time is spent actively helping customers.
  • Customer Satisfaction (CSAT) & Net Promoter Score (NPS): Direct feedback from customers on their experience.
  • Cost Per Call: The average cost to handle each call—lower costs with high service quality signal efficiency.

By regularly monitoring these KPIs, call centers can identify bottlenecks, optimize staffing, and improve both customer satisfaction and operational cost-effectiveness

What is the 80/20 rule in a call center?

80/20 in a call centre, also known as the Pareto Principle, is an industry standard service level target that means 80% of calls should be answered in 20 seconds. This is to get first call resolution, reduce wait times, and improve CSAT for contact center.

What is Call Center Productivity?

Call Center Productivity measures how well a contact center uses its people, time, and technology to handle customer interactions and resolve issues fast and effectively. It’s about maximising output (like resolved cases or happy customers) and minimising input (time, cost and effort).

Productivity rates for call center agents generally range from 48% to 87.5%.

Frequently Asked Questions (FAQs)

Take the leap towards innovation with Rezo.ai

Get started now
Drive streamlined operations
Revolutionize customer
experiencesUnlock data-driven growth