Online Calling from a Mobile App for a Payment System

The CloudWalk payment system has integrated a callback button into the application for the convenience and speed of communication of customers with operators. Thanks to the Voximplant solution, CloudWalk customers do not need to exit the application or install additional software. Moreover, calls are free of charge for users.

We are making Brazil's payment industry inclusive by empowering entrepreneurs through technology and life-changing solutions via Best Product, Disruptive Economics & Next Level Customer Engagement and with Voximplant we reached comprehensive, high quality support to our customers.

Diego Crives
Software Engineer, CloudWalk


Unsatisfactory Level of Customer Support

As the service was scaled up, there was also an increase in the number of customers who needed assistance with CloudWalk payment system services. However, customer support via the text channel was not sufficient: customers were not satisfied with the speed of responses to their queries, and the load on operators grew due to queues in chats.


Integration of Сlick-to-Сall

CloudWalk uses Click-to-Call technology to ease communication with its customers, providing faster customer support and reducing company costs.

To receive advice by telephone, the user clicks the “Call” button in the application. A free call can be made from anywhere in the world where there is an Internet connection. Clicking a button sends a call forward command to the company's SIP account, which connects the client with the operator. Incoming calls are recorded for quality control.

How it works


Tools for rapid application development


Script integration with any application


Virtual phone system


Cloud storage and programming interface


Callback button on the website

Voice Recording

Call recording for quality assurance


Comprehensive, High-Quality Customer Support

The ability to click and call an operator lets customers communicate directly with their operators without losing the quality of their connection, which significantly improves the customer service. This integrated solution also enables CloudWalk payment system clients to maintain data confidentiality – customers do not have to show their phone number when calling.

Online Calling from a Mobile App for a Payment System

CloudWalk is an advanced international payment system built on the latest technological stacks and blockchain technology. CloudWalk is used by around 290,000 active customers using merchant acquiring services in more than 3,300 cities across the country.



Employee count


Project start date




Automation area

Customer Care