Tahir Shahzad Product Manager & Community Builder
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Home Selected Work VoIP App Redesign: Fixing the Funnel Before Adding a New Revenue Line

VoIP App Redesign: Fixing the Funnel Before Adding a New Revenue Line

Digital goods (mobile top-ups) were buried behind friction, and the tech stack couldn't keep up with new experiments. Redesigned the journey, introduced A/B testing as a habit, added Gift Cards as a fresh revenue stream, and modernized the stack to pay down debt.

Role
Senior Product Manager
Industry
Telecom, VoIP
Timeframe
2024 (confirm exact year)
Team
Design, engineering, growth
01 · The problem

What wasn't working.

Mobile top-ups, a core digital goods offering, were hard to discover inside the product. The user journey had grown organically over years and buried the purchase flow behind navigation nobody had revisited.

The underlying technology stack carried enough debt that shipping and testing changes was slow. There was no reliable way to know whether a change actually improved anything, so most decisions were made on instinct.

02 · Approach

What we actually did.

I redesigned the user journey to surface digital goods earlier and remove the navigational friction sitting between users and the purchase flow.

In parallel, I scoped a modernization of the technology stack specifically to unblock experimentation, then introduced A/B testing as standard practice rather than an occasional exercise.

Once the journey and testing infrastructure were in place, we added Gift Cards as a new revenue stream on the same rails, instead of starting a separate build from scratch.

03 · Decisions & tradeoffs

Where the interesting calls were.

I fixed discoverability before adding a new product. A new revenue stream on top of a broken funnel would have underperformed and hidden the real problem.

I framed the stack rework as an enabler tied to a business outcome, not a side project for engineering. That made it easier to prioritize against feature work.

I launched Gift Cards only after the testing infrastructure existed, so the new line could ship and iterate quickly instead of waiting on its own foundation.

04 · Outcome

The numbers after we shipped.

30%
increase in digital goods revenue
1 new
revenue stream (Gift Cards) launched
A/B testing
established as standard practice

Digital goods revenue increased by 30% after the redesign removed the friction that had been burying the purchase flow.

Gift Cards launched as a net new revenue stream on infrastructure that already existed, cutting the time to ship.

A/B testing became an established practice the team kept using well beyond this project.

05 · What I learned

Things I'd carry into the next case.

Technical debt work is easier to justify, and to prioritize correctly, when it is tied to a specific business capability it unlocks.

Fixing the funnel before adding features to it compounds. Everything built downstream benefits from the same fix.

Testing infrastructure pays for itself once, then keeps paying on every feature that follows.

Want the fuller story on this one?

Happy to walk through the decisions, tradeoffs, or what I'd do differently, over 30 minutes, no pitch.