Before installing the app — go and create the SIP account for your agent.
Once you install the application on your computer, configure your Zoiper software settings in a few steps.
Open the app on your smartphone and click the "Agree & Continue" button.
Choose the pack you want to use or skip the trial page.
After that you will be sent to the next step. Click the "Providers list" button.
Then click the "Next" button to see the list of providers.
In the list, choose Ukraine => Ringostat.
Click the "Sign up" button.
You will see the pop-up window for entering your credentials for the SIP account from Ringostat. You can receive them from the manager of Ringostat or set up one yourself.
Once you register — allow Zoiper to make and manage phone calls on your smartphone.
Setup the background settings:
Choose the "Battery saver" mode.
Turn on the "Do Not Disturb Access" mode.
If you need to change the protocol, go to "Network settings".
And click "Transport Type" to change it.
After setting up your account, you can use the app for making and receiving calls.