Can't help with cameras as we don't do video.
For audio though, we use Polycom CX3000 in our conference rooms. Just checked the Amazon reviews, and seems people had problems setting them up, but we didn't have any issues.
A few notes:
1 - We have them set up as their own Skype for Business User. This makes it nice, because, you can just drag the phone's user into the meeting and it will ring, you don't have to dial any conference number or anything, or sign into it.
2 - It doesn't come with a power kit, our switches support PoE, so that makes it nice and tidy for us. Otherwise, you need a network drop and a power supply, which is very different than the Jabra setup you have.
3 - Call quality is excellent. In our larger conference room, we have a few of the "pod" mics that you can use to extend the range. Not needed in the smaller conference room.