We used it for about a year without any problems. Overall, everything was satisfactory (more or less). But then, suddenly, the connection to the server became impossible. Neither the provider, nor the software, nor the settings changed. There was a long correspondence with support, which boiled down to "everything is fine on our end, the problem is with you." A well-known argument when they can't solve the problem but need to respond with something. In the end, they didn't solve the problem. Is it worth mentioning that having a non-working number during the peak sales season is a disaster? Or changing the number that regular customers have already memorized? In summary - zadarma.com is the worst solution for business.
