Jive: So far not so good

We switched to Jive after reading the glowing reviews and needing get a provider that offered a more jitter free experience. Jive had a higher cost with the type of setup we needed, but we thought they imbued quality and were willing to ante up for it. It hasn't been a good experience thus far however, what we've experienced is a system riddled with bugs of varied degrees. The biggest of which right now is one where the pbx stops playing the ringing sound to the caller (although while still proceeding with the call on all other accounts) making them think the line has disconnected. They of course hang up and call back never being able to leave a voicemail and driving us crazy with trying to catch the call. Over the past month Jive's support, while being friendly and nice, hasn't been able to figure it out. Add that to the problem we started encountering this week of some calls only ringing once before actually disconnecting them, and it becomes a hindrance on your business.My evaluation is that it would appear Jive has the right theory going with treating the customer well, but just hasn't had the engineering time or muscle yet to create a reliable system the customer needs. I might check them out again in 5 yrs to see if that's changed.