We are currently on version 2 of the software and are having our dealer upgrade our components in order to use the version 3 system. We had a c4 door station installed several years ago but it was a wireless version as there was no way to drop a cat 5 line down to it for PoE purposes. Luckily, there was a light switch unit directly behind it in our entry that we were able to use for power. It never worked well and we replaced it with a Ring version a couple of years ago. Now that we are upgrading our system, is going back to the new C4 doorbell worth the switch? I can tell you although the Ring bell announcing through the C4 and speakers, it works intermittently at best. I'm wondering if by upgrading to the new processors and doorbell, would the door bell be more reliable.