What is the ROI of a Speech-to-Speech AI Solution vs IVR (Per 1,000 Customer Calls a Month)?
Explanation of the ROI Comparison Table Columns
| KPI |
This column lists Key Performance Indicators—the measurable metrics used to assess customer service performance and ROI. These KPIs are commonly tracked by CX, Ops, and Finance teams to evaluate the effectiveness and cost-efficiency of customer support solutions.
The KPIs included:
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Containment Rate – How many queries are resolved without a human agent.
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First Contact Resolution (FCR) – How often the customer's issue is solved in the first interaction.
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Abandonment Rate – The percentage of customers who leave before getting help.
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Customer Retention (CSAT/NPS) – Revenue uplift driven by increased customer satisfaction and loyalty.
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Average Handle Time Savings – Time saved per call by using a more efficient system.
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Multilingual/EQ Advantage – Soft benefits like language accessibility and emotional intelligence.
CFO ROI Calculator: Speech-to-Speech AI vs Chatbots
Assumptions:
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1,000 customer interactions/month
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£4 cost per agent-assisted call
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2% revenue uplift from CX improvements
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Monthly revenue baseline = £20,000
Chatbots
The chatbot column establishes the current performance baseline, assuming the business is using IVR or traditional chatbot systems.
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These numbers reflect industry-average performance metrics for chatbots based on reputable sources like Deloitte, NICE, and Forrester.
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For example:
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Containment Rate at 50% = Only 500 out of 1,000 calls resolved without human help.
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FCR at 65% = 650 customers resolved on the first try, the rest may need follow-ups.
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No empathy or multilingual flexibility = Lack of emotional connection or support for diverse audiences.
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This gives the CFO a clear “starting point” to benchmark against improvements from S2S AI.
S2S AI (Simply AI)
This column shows how Simply AI’s Speech-to-Speech solution improves upon the chatbot baseline.
Each figure here is pulled from the Performance Comparison by KPI chart, highlighting significant gains:
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80% Containment Rate = 800 calls handled automatically, reducing human intervention.
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87.5% FCR = Much higher issue resolution on first contact.
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10% Abandonment = Fewer frustrated customers dropping off.
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+2% Customer Retention uplift on a £20,000 revenue base (adds £400/month).
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200 minutes/month saved due to shorter calls via faster, smarter automation.
This column paints the “what you could achieve” scenario if Simply AI were implemented.
Total ROI Summary (Monthly) — Explained
Total Value from Improvements (£2,800/month)
This is the sum of all quantifiable monthly benefits that Simply AI’s Speech-to-Speech system delivers across five major areas:
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Simply AI Cost (£200/month)
This is the fixed monthly cost to license and operate the Simply AI Speech-to-Speech platform.
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It's intentionally low to highlight the cost-efficiency and scalability.
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Compared to the value delivered, it makes a strong case for ROI.
Net ROI (£2,600/month)
This is the Total Value from Improvements minus the cost of the solution:
£2,800 - £200 = £2,600/month
This figure represents the true financial gain your business would receive after expenses.
ROI Ratio (14x return)
This tells you how many times the investment pays for itself:
£2,600 Net ROI ÷ £200 Cost = 14x return on investment
For every £1 spent on Simply AI, you receive £14 back in business value. That’s a compelling metric for CFOs considering budget allocation.
Annual Net ROI (£31,200/year)
This is the projected yearly gain, assuming consistent monthly results:
£2,600 × 12 months = £31,200/year
It frames the ROI at a longer-term scale, ideal for annual budgeting and forecasting.

ROI Comparison Table
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