To integrate with the Zvonok.com service, you need to register on the website zvonok.com and get the api key.
Specify the received api key in the site settings in the integration section - SMS.
Go to the zvonok.com control panel in the number confirmation section and create a campaign. When creating a campaign, you must select a phone number confirmation method.
You can use one of two popular methods:
Code dictation by a robot. The robot calls the user and dictates the code, and the user enters it on the website.
Calling a verification number. The user needs to call a specific number, and the phone number will be automatically verified after the call.
Dictation of the code by the robot
The default code length is 4 digits. Make sure that the length in your site settings is also 4 digits. After creating a campaign, copy the id and specify it in the site settings.
A call to the verification number
Number for incoming calls - Select the phone number that the user will call to confirm their phone number and specify it in the website settings.
Postbacks - Set a link to the handler so that the system can receive the confirmation status of the phone number.
Congratulations! Integration is complete!