bOnline VoIP Mobile App Design

Xolani

Xolani Siletile

bOnline VoIP UI Design

bOnline is a VoIP service and app for businesses. It enables flexible, cost-saving, feature-rich calls over the internet.

Project Summary

Design a mobile application that enables users to view a list of calls, make calls from a dial pad, and place phone calls from within the app.

The Goal

A small business in the UK that utilises bOnline's VoIP service should be able to make calls from dial pad, view list of calls, and make calls from the app.

Understanding the user

Jamie wants to be able to easily access the dial pad and contact list, and to quickly make calls with just a few taps.
Jamie needs a mobile application that allows him to make and receive calls from anywhere, without being tied to a desk or landline.
Jamie needs a mobile application that provides easy access to call details, including the time and duration of calls.
Jamie wants a mobile application that provides strong encryption and security features, such as two-factor authentication, to ensure that his business communications remain private and confidential.
Mockup image of 2 phones showcasing the bOnline VoIP App
Mockup image of 2 phones showcasing the bOnline VoIP App

User Tasks

User tasks will help me identify what tasks will the user perform in-order for them to reach their goal.

Make a phone call

Opens the mobile application
Navigates to the dial pad
Enters the phone number he wants to call
Taps the call button
The call is connected.

View call list

Opens the mobile application
Taps on a call to view more details
Taps the call button
The call is connected.

User Stories

User stories helps me to keep focused on the user, their motivations, and what they want to achieve.
As Jamie, I want to be able to quickly make a phone call to a client or customer from my mobile device, so that I can stay connected and manage my business communications from anywhere.
As Jamie, I want to be able to effectively manage my call history from my mobile device, so that I can stay on top of my business communications and never miss an important call or message.

App Requirements

Now that we understand Jamie’s goals, the app should be:

Efficient

The mobile application should be intuitive and user-friendly.
Should have clear and simple navigation that allows him to quickly perform tasks such as making a phone call or checking his call history.

Reliable

The app should have a high level of call quality.
The app should have minimal dropped calls or other technical issues.

Wireframe

Wireframes of the bOnline VoIP App Design
Wireframes of the bOnline VoIP App Design

Hi-Fi Designs

High Fidelity Designs for bOnline VoIP App
High Fidelity Designs for bOnline VoIP App

You can play with the Prototype here👇🏽

Future Ideas

When a customer is requesting a quote/service from the owner, they can record the call.
An image of sketches, showcasing how the record button and record screen work
An image of sketches, showcasing how the record button and record screen work

Thank You!

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Posted Jun 13, 2025

bOnline is a VoIP service and app for businesses. It enables flexible, cost-saving, feature-rich calls over the internet