I connected a phone system from PBX for my fitness center. Previously, I used regular mobile numbers, but this led to constant misunderstandings, many calls were lost, and not all clients made it into the database. Now, those problems are gone. Every call is recorded in the system. If the administrator doesn't answer a call (which is also noted), it gets redirected to me. The same goes for calls outside of working hours. I also added a call recording feature to evaluate the performance of managers and administrators. Now, I've been offered call tracking for ad analysis, and I'm considering it. Overall, I'm very satisfied with the quality of the phone system. Although I'm now spending more on communication than before, it's completely justified by the increase in income due to more effective handling of client calls.