An organizational meeting to discuss the requirements provided by
the client, followed by the verification of the proposed solution
for communication, the layout of user paths and the app’s
Designing the visual aspects of the mobile application and
choosing the right concept.
2021February - May
Kick-off and start of the development process, including testing
and implementation of Bisar dialer.
Final tests and deployment in the Google Play store and App Store.
2021July - October
Expanding the application by adding new functionalities.
About the application
Bisar is a dialer (VoIP mobile app) which does not require user registration
and serves as a free communication channel between the Bisar S. A. call
center, and Ukrainian citizens looking for employment in Poland. The need to
develop such an application arouse from the lack of an accessible and
convenient solution for Ukrainian citizens. Direct phone calls to the call
center from the territory of Ukraine are too expensive, and the use of the
Viber application, which is the most popular application in Ukraine, did not
meet the company's expectations.
Communication with VoIP PBX via SIP protocol
Simplified connection function with Bisar PBX
Hands-free mode and microphone mute feature
Collection of the key information for a potential employee in the
Notifications of current job offers displayed in the selected
application language (mobile app) and region
The main objective for our client was to verify whether their proposed
communication method would meet the design objectives and guarantee the
application continuity. Then, based on the requirements, the application
with an interface ensuring free accessibility to users with varying
degrees of technological skills was developed.
Mobile app development process
The project started with a meeting to discuss the needs and goals of our
client in detail. We went over the set of requirements for the application
and the technological aspects. We also got to know the persona who the
client wanted to reach with their application.
VoIP technology verification
Before we started to work on the design, our team assessed and tested the
communication technology proposed by the client in order to make sure the
investment was solidly grounded.
Taking into account that one of the goals was to design an interface which
is easy to use, we had to focus on the right layout of functionalities in
the application and a user-friendly design.
Based on provided requirements, we designed the main and side user
We determined the main and the side user paths and then prepared the
application view architecture.
With the UI architecture prepared, the designer began to develop
DLo-fi versions testing & selecting the best one
In order to make sure that the planned paths, architecture and views
meet the specified criteria, we conducted two test iterations on
potential users from the target group.
We visually designed the tested concept in accordance with the
current principles of brand’s visual identity.
FThe client’s approval of the new design
The client received and approved the new design.
Mobile App Development
Having prepared all the necessary views, we began mobile application
AAssembling the development team
We assembled the development and testing team, taking into account
the necessary competencies for the application production.
BAn in-depth technical description of functionalities and
Considering the earlier verification of the technology and the
prepared user flow, the developers re-planned the functionalities
from a technical point of view, in order to eliminate the risk of
postponing the development. Next, they prepared the final project
CStarting the step-by-step development of functionalities
The app development began and the first features were implemented.
We ensured quality by means of test scenarios and multiple manual
tests conducted during the development process. The client was
confident that the application would be bug-free.
EApproval and deployment
When all the functionalities were implemented and tested by our
team, it was time for our client to approve the application and then
deploy it to the Google Play and AppStore stores.
Following the app's successful reception, the client decided to further
develop the dialer and together we implemented the feature of job
notifications without the need to create a user account, grouping
recipients by location and language.
A call made by a Ukrainian citizen using the Bisar application is
forwarded to a VoIP PBX via the SIP protocol, and is then transferred to
an available consultant.
Establishing such communication channel has increased the popularity of
Bisar S. A. as a quick and easily accessible employment agency, which led
to an increasing number of inquiries from Ukrainian citizens.
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