Case Study · Telecom

VOIP PIN-less International Calling App

A PIN-less VoIP app that lets users make low-cost international calls from any mobile device. It uses the latest telecom technology — direct routes to many Asian and African countries and premium links elsewhere — and works with a user’s existing phone service the moment the app is installed.

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2 Native apps — iOS & Android

PIN-less Register once, no PIN

1‑min Single-minute billing

Overview

The cheapest, simplest way to call the world.

This VOIP-based PIN-less application lets users make international calls across the world from any mobile device, using the latest telecom technology for the most inexpensive and convenient experience. It leverages direct routes to many Asian and African countries and premium links to the rest.

With rising demand from international callers, our client wanted an easy, effective way to place calls over modern telecom infrastructure. We onboarded a team of experienced iOS and Android developers to deliver a smart, advanced app for both platforms — the user simply downloads it and it starts working with their existing phone service straight away.

What We Delivered

Built for clear, low-cost calling.

The finished mobile app gives international callers a faster, cheaper, contract-free way to stay in touch.

PIN-less Dialing

Works with Any Phone

With just the access number, users can call from any mobile or landline — no need to change carriers or hardware.

Single-Minute Billing

Pay only for the time talked. One minute is billed as one minute — unlike calling cards that round up to 3-minute blocks.

No Contracts

Recharge only when the service is needed — no contracts, no commitments, and no monthly fees to worry about.

Built With

Android iOS Java C VoIP PHP CodeIgniter