The Deflection Trap: Stop Treating the Voice Channel as the Enemy of Efficiency

James Hughes at Sabio looks at why the “deflection at all costs” model is flawed, and how forward-thinking leaders are finding a better way.

Walk into any boardroom discussing Customer Experience (CX) strategy today, and you will inevitably hear the same two words: Cost Reduction.

With the Cost to Serve (CTS) for live voice channels remaining high – often ranging from £5 to £15+ per interaction – the traditional business case for AI in CX has relied on a simple, ruthless premise: Deflect the customer. Force them into your process; not theirs.

That strategy usually looks like this: bury the phone number, deploy a text-based chatbot, and aggressively route callers to digital channels.

On paper, the financial math works. Text-based chat has a fraction of the CTS of a live voice call. But in reality, this approach is creating a massive pitfall that organisations are stumbling into blindly, and it is quietly destroying customer loyalty. So, your operational cost has reduced, but what is happening to your revenue line?

The Problem with Forced Deflection

The fundamental flaw in this business case is that it ignores what customers actually want.

If they know their query will be resolved accurately and efficiently, customers overwhelmingly prefer the voice channel. Voice provides immediate validation and easily untangles complex problems.

When you force a customer who wants to speak to someone into a rigid chat channel, you aren’t creating efficiency; you are creating friction.

This leads to three massive pitfalls:

• The “Loop-Back” Effect: Customers hit dead ends in chat and end up calling anyway. Your Cost to Serve now includes the failed chat plus the live call.
• Plummeting CSAT: Customers know when they are being managed for cost. Forced deflection directly correlates to lower Customer Satisfaction and Net Promoter Scores.
• Agent Burnout: When basic queries are deflected, live agents only deal with complex, emotionally charged escalations, driving up attrition (see the trend).

What if Voice Wasn’t the Enemy?

The traditional AI business case treats the voice channel as a problem to be eliminated. What if, instead, you used AI to augment voice? You can deliver the meaningful, voice-led journeys your buyers demand while still making a massive dent in spiralling CX costs.

Here is how:

• Agentic Conversational Voice AI: Instead of rigid menus, customers can use their natural-language. We resolve transactional queries entirely within the voice channel, giving customers the experience they want at a fraction of human cost.
• Real-Time Agent Assist: When a call needs a human, AI listens in and instantly feeds the agent answers, history, and next steps — drastically dropping Average Handle Time (AHT).
• Automated After-Call Work: AI can auto-summarise calls and log notes into the CRM the second the customer hangs up. Erasing 60 seconds of wrap-up time per call yields millions in reclaimed productivity.

The Bottom Line

The next evolution of CX isn’t about avoiding the customer to ‘save a dollar’.

By shifting your AI strategy from deflection to augmentation, you stop treating the voice channel as the enemy of efficiency, and start treating it as a financially sustainable driver of loyalty.

At the same time you are creating scale for more powerful marketing campaigns, new markets and new services / products.

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This post has been re-published by kind permission of Sabio - view the original article.

Call Centre Helper is not responsible for the content of these guest blog posts. The opinions expressed in this article are those of the author, and do not necessarily reflect those of Call Centre Helper.

Reviewed by: Robyn Coppell