Have a spare 8500 that I'm learning on and have had a hard time getting it to behave like the 8800s - yes they are different, but still. With Software 188.8.131.5227 EWS deploys but doesn't sync the calendar.
With 7.1.1.0731 EWS deploys and syncs the calendar and I get the join button, but the join button doesn't scrape the Teams URL - it scrapes the Teams Audio Conferencing number and meeting ID - which is nice in an audio only situation, but I do have a Visual Plus connected that appears to be working.
My 8800s with 184.108.40.20627 join RealConnect consistently.
Adam, the Trio 8500 and 8800 are identical in this respect and nothing should have changed between the release versions in terms of parsing RealConnect details from a Teams invite.
I'd recommend opening a support ticket in case there is a bug in 7.1.1 that needs to be identified and fixed.
Thanks Jeff. I bought this used as purely a learning tool. So it's not covered by any plan. I would imagine that means I cannot put in a ticket on it.
But, I might do a factory reset and try a different version of software. And I might kill this mailbox resource and create a fresh one. Just to start completely over again.