When a call goes to a ring group all users are shown as on phone once the call is picked up all users go back to Available including the one still on the phone.
Also possibly related possibly not if someone is on the phone for an extended time they go back to available even though they are still on the phone.
Using trixbox 18.104.22.168 with Astrisk Call Manager 1.1
Openfire 3.7.0 with Asterisk-IM Openfire Plugin 1.4.0
I know ACM 1.1 may be my problem but I hope it isn't or can be worked around