How a Leading ISP Doubled Sales Efficiency and Cut Costs with AI Automation

Executive Summary

A fast-growing African Internet Service Provider (ISP) transformed its customer engagement and sales operation by implementing Stubber's AI Sales Assistant on Web Chat.

In just 12 months, they slashed customer acquisition costs, more than doubled quoting efficiency, and boosted revenue by 35.8% — all while reducing staffing pressures and maintaining existing marketing spend.

Stubber's AI Assistant, capable of operating in any customer-required language, not only confirmed service feasibility but also generated personalized quotes and could complete the full sales process autonomously.

The Challenge

Before AI Implementation (Human-Only Sales Process)

• Manual handling of all sales leads
• Sales team struggling to meet rising inquiry volumes
• Only 51.38% of customer inquiries received quotes
• Language barriers restricting engagement across diverse African markets
• Slow feasibility checks and quotes causing customer drop-offs
• Limited service hours — call centers closed overnight

The Solution

After Stubber Implementation

• Instant, multilingual engagement capable of addressing customers in any required language
• Automated feasibility checks and personalized quote generation delivered within minutes
• Full sales capability: AI could onboard customers end-to-end, with human sales team support where needed
• No increase in marketing spend — lead growth driven purely by 24/7 AI availability
• Cost per interaction stabilized at ~$0.24, maintaining low operational costs

Implementation Timeline

Milestone	Time Required
Initial AI Assistant Deployment	3 Weeks
Number of APIs Integrated	2

Results: Before vs. After Stubber

Metric	Before AI	After AI	Improvement
% of Leads Quoted	51.38%	87.13%	+69.58%
Languages Supported	Limited	Any required	Unlimited
Leads Handled (6 months)	~18,000	~36,000	+100%
Cost per Interaction	N/A	~$0.24	Highly efficient
Marketing Spend	Standard	No Increase	Same budget

Impact at a Glance

Why It Worked

Stubber automated everything that could be automated: responding instantly, communicating across languages, confirming service feasibility, sending branded quotes, and even completing onboarding. The AI allowed human sales agents to focus only on closing high-value leads, driving faster deal cycles and reducing operational overhead.

Sales Process Transformation

Before:

Lead Inquiry → Manual Handling → Language Barriers → Slow Feasibility Checks → Manual Quote Creation → Limited Hours → High Drop-off

After:

Lead Inquiry → Instant AI Response → Any Language Support → Automated Feasibility → Instant Quote → 24/7 Availability → Higher Conversion