How AI Voice Agents Help Control Call Center Costs

Posted Mar 04, 2026

Updated

Maria Ortiz

With all the time and money spent launching new products and services, building your brand, and finding customers, the last thing you want is for ineffective customer service to wipe out your hard work.

Yet bad customer experiences are far too common and create real financial risk. Qualtrics estimates that nearly $3 trillion in global sales will be at risk in 2026 due to poor experiences. When just two bad customer experiences are enough for 70% of U.S. consumers to walk away from a brand, according to Emplifi, the lesson becomes clear: Businesses cannot afford poor customer service.

To help, many businesses are turning to AI voice agents to improve the customer experience while controlling costs. These agents, powered by conversational AI technology, automate routine customer interactions, provide consistent support, and act as the first touchpoint for customers across channels.

As the new entry point for customer interactions, this technology paves the way for a future where brands can adapt dynamically to customer needs—no matter where or when they reach out.

Below, we’ll explore how AI voice agents can help businesses reduce reliance on traditional call centers and deliver faster, better customer service.

Key Takeaways

• Traditional call centers are expensive, labor-intensive, and inefficient to scale.
• AI voice agents reduce overhead by automating common tasks like order tracking, scheduling, and account updates.
• Conversational AI provides more natural, context-aware interactions than traditional IVR systems.
• Rasa’s CALM framework combines generative AI with control, ensuring security, compliance, and brand alignment.
• Rasa’s open platform helps enterprises deploy scalable, customizable agents that reduce costs and improve CX.

Why traditional call centers are expensive to run

Traditional call centers rely heavily on human agents to handle customer interactions, which can be inefficient and expensive. Even if you outsource your call center, you still pay for each human agent’s labor, plus all the other overhead costs associated with running these facilities.

Let’s take a closer look at what makes traditional call centers so expensive to operate:

• Labor costs: The average call center employee in the U.S. makes about $40,000 per year, and the operational costs can stack up quickly when you have dozens of employees. Hiring 100 U.S.-based agents could mean paying $4 million in salaries, let alone other associated labor costs like health insurance and taxes. Outsourcing might bring down the cost per agent to about $8/hour, but the cost is still significant if you need dozens or hundreds of agents.

With human agents, scaling your business generally means a higher call volume—which means hiring more agents, which can eat into profitability.

• Turnover costs: When a human agent leaves their job, you lose productivity and absorb recruiting and training costs on top of replacing their salary. Insignia Resources estimates 2025 turnover rates at 40–45% for the average call center, which is about twice the rate of other industries. Each departure costs around $22,500–$42,000.
• Peak-period inefficiencies: During peak hours or peak seasonal periods, your call center may not have enough human agents to handle demand. Customers grow frustrated by long wait times, employee morale takes a hit, and the likelihood of turnover increases. Trying to compensate by hiring more agents for high-volume periods adds labor costs and can be highly inefficient. For example, putting resources into recruiting and training new agents for a one-month burst of holiday sales can shrink your margins.
• Ineffective manual processes: Traditional call centers still rely on human agents to handle routine tasks such as answering basic questions, processing orders, and entering customer data. These manual workflows slow down customer support and create opportunities for errors. A simple mistake—like updating the wrong shipping address—can turn into reshipments, refunds, or even lost customers.

These expenses pressure businesses already dealing with growing costs, rising customer expectations, and more competition. The traditional call center model doesn't cut it anymore. Instead, businesses need a more efficient, scalable solution, which is where AI comes into play.

How conversational AI can reduce call center costs

Deploying AI agents that leverage conversational AI can reduce call center costs by reducing overhead and labor expenses while automating repetitive tasks.

You're probably familiar with an older technology, interactive voice response (IVR), that some companies have used to try to reduce demand for human agents. Traditional IVR largely depends on the system trying to match what users say with preset menus, which might work for a simple inquiry, like checking a bank balance.

But if customers have more complex questions, or if they phrase something in a way that doesn’t match the IVR's preset menu, it might ask the customer to repeat the query or ask the customer to wait for a live agent. That only creates customer frustration and doesn't address the cost of human agents.

Instead, conversational AI acts as the brain of an AI agent, using capabilities like natural language understanding (NLU) to enable the voice agent to draw from a knowledge base and address customer needs based on context. Instead of only understanding if a customer says "balance," a conversational AI engine might also understand "how much money do I have in my checking account?"

In addition to NLU capabilities, conversational AI means that a voicebot doesn't have to follow a rigid script or call routing procedures, which is also a problem that some human agents run into. In natural conversation, callers might provide details out of order, like stating the problem first and then providing account information.

Conversational AI means that the AI agent can remember what was said earlier in the conversation, so even if things are out of order, there's more of a natural flow and efficiency.

With these natural language processing capabilities, conversational AI excels at high-value, low-effort use cases:

• Troubleshooting common electronic device issues
• Order tracking
• Refund/return setup
• Appointment scheduling
• Updating account information
• Accepting payments
• Checking claims status
• Guiding new customers through product/service features
• Informing customers of loyalty program features/status
• Proactively updating customers on outages, schedule changes, etc.
• Triaging patients and connecting them with relevant support staff

Letting conversational AI agents handle these tasks saves money by:

• Reducing existing headcount
• Scaling up call center support without recruiting, onboarding, and training new employees
• Providing more first-call resolutions while freeing up human agents for more complex tasks, which can improve customer and employee satisfaction (creating savings like lower turnover)
• Providing 24/7 support, without triggering overtime or higher rates outside normal business hours

Measuring the ROI of conversational AI

Rasa platform can reduce your call center costs and provide a compelling ROI. Swiss telecom company Swisscom rebuilt its AI agent using Rasa and cut operational costs by 50% while substantially improving customer satisfaction, as measured by its net promoter score (NPS).

When you deploy your own AI agents, it's important to measure ROI to ensure you're using a platform that delivers the intended benefits.

Key metrics for measuring ROI

To fully appreciate the value brought by advanced AI agents, consider several key performance indicators (KPIs) that reflect both direct and indirect benefits, like:

• Response and resolution times: Track the average response time per customer interaction, as well as the total time to full resolution. Generally, faster responses and resolutions improve customer satisfaction, especially for common issues that customers feel like they should get essentially real-time answers to.
• Customer satisfaction surveys: Customer satisfaction surveys, like those that measure customer satisfaction (CSAT) scores or net promoter scores (NPS), can provide clear evidence for the ROI of AI agents. When these KPIs improve after deploying AI agents, that shows customers appreciate the technology's efficiency.
• Live agent queries and hours: Track metrics related to employing live agents, like hours worked and queries handled per shift. That can help you identify immediate cost savings, like reducing the need for overtime hours after deploying AI agents. It can also make you more proactive about complex issues like live agent burnout from excessive workloads.

Long-term financial health indicators

While some KPIs like total spend on call centers indicate short-term ROI benefits, there are also a lot of long-term financial health indicators to track, across areas like:

• Increased operational efficiency: Automating standard procedures and responses enables staff to focus on higher-value activities, thereby improving overall efficiency. This shift often leads to more cost-effective call center operations, with better allocation of human resources. Consider using KPIs for staff turnover and productivity to demonstrate the value of AI-powered agents.
• Decreased scaling costs: Deploying AI agents generally costs much less than onboarding human agents, which makes scaling AI-driven contact centers more affordable. Ideally, you'll see sales growth accelerate faster than call center expenses, rather than these moving in sync.
• Revenue growth: Improved customer satisfaction can lead to higher retention rates, increased sales, and enhanced brand loyalty. These outcomes directly contribute to revenue growth, making them critical components of the ROI calculation. This might show up in KPIs such as higher average order values and lower return rates.

By tracking these performance metrics, companies can comprehensively understand the financial benefits of automated conversation tools. But you need to choose the right provider for this new technology.

What makes Rasa different from other AI providers

Too often, automation platforms bolt large language models (LLMs) onto existing systems, resulting in wasted time and money. These LLMs also have issues like hallucinations that confuse customers or break regulatory protocol.

Plus, these systems are often rigid black boxes that don't let you see how the responses are generated or adjust outputs.

In contrast, the Rasa platform provides flexibility with our open-source framework that lets you transparently build, version, and test agents. You also have the choice to deploy agents in the cloud, on-prem, or fully managed, which is key for highly regulated organizations like financial services companies.

But what really sets Rasa apart is the Conversational AI with Language Models (CALM) framework, which combines the fluidity of AI-driven conversations with the rigors of business logic and compliance.

CALM empowers businesses through:

• Security and control: Unlike highly autonomous AI models, CALM allows businesses to set parameters that guide AI decision-making. This ensures that all interactions are aligned with your security protocols, ethical standards, and regulatory requirements.
• Business logic integration: CALM integrates detailed business logic into the AI’s operating framework. This integration ensures that, despite the assistant’s ability to generate responses dynamically, it does so within the context of the business’s rules and practices.
• Compliance and consistency: With CALM, enterprises can trust that their AI assistants will deliver high-quality, natural-sounding dialogues and adhere strictly to compliance requirements. To learn more, check out our whitepaper, Navigating Compliance in Regulated Industries with CALM.
• Fluidity with oversight: Combining the natural conversational abilities of generative AI with strict control mechanisms, CALM delivers the best of both worlds: superior conversational quality without sacrificing oversight.
• Seamless human handoff: This approach facilitates a smooth transition between AI and human agents when needed. This "human in the loop" approach ensures that while AI can handle most interactions autonomously, escalation of complex or sensitive issues to live call center agents is also easy.

CALM represents a breakthrough in generative AI, empowering enterprises to deploy adaptable, high-quality, trustworthy agents.

The future of call centers starts with the right AI foundation

Just like you can't afford bad customer experience, you can't afford bad AI experiences. Conversational AI replaces the frustrations of traditional IVR systems with contextual capabilities so that you can provide great customer service while keeping costs down.

Making this switch, however, depends on choosing the right AI foundation. You want a platform that lets you easily scale your customer experience team by quickly deploying AI agents without sacrificing quality or control.

The Rasa platform can help your business deliver better customer experiences, with technology that helps your customers quickly solve problems, frees up bandwidth for live agents, and gives you control over areas such as cost, security, and compliance.

To start improving your customer experience while saving money, book a demo to see the Rasa platform in action.

FAQs

How do AI voice agents reduce call center costs?

AI voice agents reduce costs by automating routine interactions, allowing companies to scale without adding headcount. They also reduce overtime, training, and turnover costs while improving first-call resolution rates.

Can AI agents replace human agents entirely?

Not entirely—AI voice agents are best for handling high-volume, low-complexity tasks. They free up human agents to focus on complex or sensitive issues, creating a hybrid model that improves both efficiency and customer experience.

How is conversational AI different from traditional IVR?

Unlike rigid IVR menus, conversational AI understands natural language and context, enabling fluid conversations. This reduces customer frustration and allows for more dynamic, human-like support experiences.

What kind of ROI can companies expect with AI voice agents?

Companies often see cost reductions from fewer support hours, reduced agent turnover, and faster resolution times. Long-term benefits include increased customer satisfaction, better brand loyalty, and improved scalability.