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Optimising Call Centre Staffing Levels to Manage Call Spikes

Written by Darren McCowan | Dec 11, 2024 3:41:45 PM


The outsourced call centre industry has a long-standing reputation for helping businesses deliver timely, high-quality customer service. With extensive experience and expertise, providers like Answer4u are uniquely equipped to overcome the often-overlooked challenges of maintaining consistent service delivery.

A significant hurdle for business owners is striking the right balance when managing in-house staffing levels to handle fluctuating customer call volumes. Answer4u excels at navigating this challenge, which is crucial for meeting key performance indicators (KPIs) such as call answer times while preserving profitability. Achieving this balance relies on data-driven forecasting, adaptable workforce strategies, and effective call centre management practices.

In this blog, we outline several strategies Answer4u employ to achieve the levels of customer service you have come to expect.


Understanding Call Volume Fluctuations

Call volume rarely remains constant throughout the day. Customers tend to contact call centres during predictable peaks and valleys influenced by the following:

  • Time of Day: Morning hours, lunch breaks, and early evenings often see increased call activity, while mid-afternoon and late evenings may experience lower volumes.

  • Day of the Week: Mondays and Fridays typically have higher call volumes than mid-week days.

  • Seasonal Trends: Holidays, tax season, Black Friday or other special promotions can lead to call spikes.

  • Unplanned Events: Technical outages, product recalls, or external crises can trigger sudden, unpredictable surges in customer inquiries.

These fluctuations can overwhelm an in-house customer service team without adequate planning, leading to long wait times, frustrated customers, and overburdened agents. Conversely, overstaffing during quieter periods can drive up labour costs and eat into profitability.


The Importance of Optimum Staffing Levels

Answer4u aim to achieve optimum staffing levels—the sweet spot where staffing aligns perfectly with demand. The goals of optimal staffing include:

  • Meeting KPIs: Ensuring calls are answered within an acceptable time, maintaining service-level agreements (SLAs), and addressing customer concerns efficiently.

  • Maximising Customer Satisfaction (CSAT): Avoiding long wait times and delivering prompt, high-quality service.

  • Controlling Labour Costs: Balancing agent utilisation rates to avoid paying for idle time while ensuring adequate coverage during busy periods.

  • Supporting Agent Well-Being: Preventing agent burnout by avoiding understaffing while maintaining manageable workloads.

At the same time, call centres must avoid excessive staffing, which can lead to underutilised agents and wasted resources.


Techniques for Managing Staffing Levels

Achieving the right staffing balance requires a combination of forecasting, workforce management tools, flexible staffing models, and real-time adjustments:

1. Call Volume Forecasting


  • Historical Data Analysis: Used to identify trends in call volumes and make informed staffing decisions. This process involves collecting, analysing, and interpreting past data to predict future demand patterns and align staffing levels with operational needs. 

    Guide to using historical data analysis:

 

  • Real-Time Data Monitoring: Used to track live call volumes and make immediate staffing adjustments when demand deviates from forecasted levels. This proactive approach ensures that service levels are maintained, call centre KPIs are achieved, and resources are utilised effectively.


    Guide to using real-time data monitoring:

 

  • Predictive Analytics: Predictive analytics combined with AI-driven machine learning algorithms are powerful tools for anticipating future call volumes. By incorporating variables such as promotions, marketing campaigns, and external events, this approach provides predictions that can guide staffing decisions and improve operational efficiency.

    Guide to using predictive analytics:


2. Workforce Management (WFM) Systems

Modern call centers rely on workforce management software to schedule and monitor agents effectively. WFM systems help align staffing with demand by automating key processes:

Features of WFM Systems

  • Dynamic Scheduling: Automatically assigns agents to shifts based on forecasted call volumes, ensuring coverage during peak times.

  • Real-Time Adjustments: Enables resource managers to make on-the-fly changes to staffing when call volumes deviate from expectations.

  • Shift Optimisation: Balances agent shifts to minimise overstaffing and understaffing.

  • Skill-Based Routing: Matches calls to agents with the appropriate skills, improving efficiency and resolution rates.

WFM systems not only enhance scheduling accuracy but also improve overall resource utilisation.


3. Flexible Staffing Models

Call centers often use flexible staffing arrangements to accommodate fluctuating call volumes.

Common approaches include:

  • Part-Time Employees: Hiring part-time agents provides a cost-effective way to add capacity during peak periods.

  • Split Shifts: Scheduling agents to work multiple shorter shifts throughout the day aligns coverage with demand spikes.

  • Remote Work: Remote agents increase staffing flexibility and allow for seamless scaling without physical space limitations.

  • On-Call Staff: Maintaining a pool of on-call agents allows for quick scaling during unexpected surges.

Flexible staffing ensures call centers can handle peak periods without committing to excessive fixed labour costs.


4. Call Routing and Load Balancing

Technology plays a pivotal role in managing call volume distribution:

  • Automatic Call Distribution (ACD): ACD systems route calls to the most appropriate agents or teams based on skill set, reducing wait times and improving efficiency.

  • Overflow Routing: Calls exceeding capacity at one centre can be redirected to another location or outsourced provider.

  • Interactive Voice Response (IVR): IVR systems allow customers to self-serve or route to the appropriate department, reducing agent workload.

Load balancing ensures that calls are distributed evenly, preventing bottlenecks during high-volume periods.


5. Outsourcing and Overflow Support

Outsourcing provides a scalable solution for managing call spikes.

  • Third-Party Call Centers: External providers like Answer4u can handle overflow calls during peak times, ensuring service continuity.

  • Temporary Staffing Agencies: Hiring temporary agents for short-term needs prevents long-term labour costs associated with permanent staff. However, this approach requires providing the necessary internal infrastructure and resources for temporary agents to perform their roles effectively. 

Outsourcing is particularly useful for handling seasonal surges or unforeseen events without increasing fixed labour costs.


6. Real-Time Monitoring and Proactive Management

Real-time monitoring enables supervisors to respond dynamically to changing conditions:

  • Queue Monitoring: Supervisors can identify increasing wait times and reallocate resources immediately.

  • Agent Availability Tracking: Ensuring that breaks, lunches, and other activities are staggered to maintain coverage.

  • Proactive Communication: Notifying agents of unexpected surges and requesting overtime or additional support.

Proactive management minimises disruptions and ensures consistent service levels, even during unplanned spikes.


7. Cross-Training Agents

Cross-training agents to handle multiple types of inquiries increases operational flexibility. During peak times, cross-trained agents can be redeployed to high-demand areas, while during lulls, they can focus on other tasks like email or chat support.

This practice not only helps manage call spikes but also improves overall agent engagement by providing diverse responsibilities.


8. Leveraging Technology

Reducing the need for human interaction during peak times is another effective strategy:

  • Self-Service Options: Providing online FAQs and mobile apps empowers customers to resolve simple issues without contacting an agent.

  • Call-Back Features: Offering customers the option to request a call-back instead of waiting in a queue can smooth out demand.

  • Proactive Notifications: Sending reminders or updates via email or SMS reduces the likelihood of customers calling for information.

These solutions ease the burden on agents and enhance the overall customer experience.


Balancing Profitability and Performance

While the primary goal of fluctuating staffing levels is to meet customer demand, profitability remains a key consideration. Excessive staffing increases labour costs, while inadequate staffing leads to poor service and lost revenue.

Call centres can achieve this balance by focusing on the following principles:

  1. Cost Per Call
    Minimising the cost per call without sacrificing service quality is a key metric. Efficient scheduling, reducing average handle times (AHT), and leveraging technology help achieve this goal.

  2. Agent Utilisation Rates
    Agent Utilisation measures the percentage of time agents spend actively handling calls during their shift. While higher utilisation improves efficiency, overloading agents can lead to burnout and decreased performance. A balanced utilisation rate—typically 70-85%—ensures that agents remain productive without compromising quality.

  3. Workforce Efficiency Metrics
    Tracking metrics like occupancy rates and shrinkage (non-productive time) ensures staffing decisions are aligned with both performance and profitability goals.


Key Challenges and Solutions


Challenge 1: Unpredictable Spikes

Even with accurate forecasting, unforeseen events can cause sudden surges in call volume.

Solution: Utilise on-call agents, use outsourced overflow providers, and deploy IVR and call-back systems to manage unexpected demand.

Challenge 2: Agent Retention

Frequent schedule changes or overburdened workloads can lead to high turnover.

Solution: Offer flexible scheduling, competitive pay, and professional development opportunities to keep agents engaged.

Challenge 3: Technological Costs

Investing in WFM systems and other call centre tools can be cost prohibitive for smaller businesses.

Solution: Reduce upfront expenses by leveraging scalable, outsourced call centre solutions. These providers have already invested in advanced technology, allowing businesses to access sophisticated tools without the financial burden of purchasing and maintaining them independently.


Final Thoughts

While there may be valid concerns about outsourcing call centre functions, the benefits often outweigh the perceived challenges, making it a highly viable option for many businesses. Answer4u, with specialised expertise in delivering customer service at scale, access to advanced technologies, experienced workforce management practices, and talent pools, offer a level of service that is often inaccessible to smaller, in-house operations. By outsourcing, businesses can benefit from greater flexibility in handling call volume fluctuations and rapidly scale up or down without the overhead costs and logistical challenges of managing internal teams.

Furthermore, Answer4u prioritises aligning with their client’s brand values and standards. Through rigorous training, customised scripts, and integrated CRM systems, our teams can deliver seamless, on-brand customer experiences. The significant cost savings achieved through outsourcing—reduced overhead, lower recruitment expenses, and infrastructure costs—free up resources for other critical business functions. For many organisations, this financial benefit makes outsourcing a practical alternative and a strategic decision that balances efficiency, scalability, and cost-effectiveness, ultimately enabling businesses to focus on core competencies while delivering excellent customer service.