I also have the 286 and see the same problem with the toggle. I swear though I have been able to call home, wife flashes over to pick up the call, we talk for a few, and she goes back to the first call. But, I just tested it with her and it doesn't work. We were on the first call, flashed over to the second call, then flashed back to the first and had just dead air on both calls. We had to hang up and re-dial.

Scott