I'm not getting presence values to update on the clients. For example, two users with FOP2 open in the browsers, one changes their state from Available to DND, neither user sees the state updated on the FOP2 display. If a user reloads the entire FOP2 display session in their browser, the state will show up. Asterisk is generating the UserEvents for the change. What's up here? Bug?

192.168.1.73   <- Event: UserEvent
192.168.1.73   <- Privilege: user,all
192.168.1.73   <- UserEvent: FOP2ASTDB
192.168.1.73   <- Action: UserEvent
192.168.1.73   <- Family: fop2state
192.168.1.73   <- Channel: SIP/7110xb
192.168.1.73   <- Value: Out to lunch
192.168.1.73   <- Server: 0

Asterisk version is 1.4.21.1 and distribution is Centos 5 - i386. Case is consistent -- for example:

[SIP/7110xb]
type=extension
extension=7110
context=xb1
label=John
mailbox=7110@xb
extenvoicemail=*67110

is the definition related to the UserEvent shown earlier. Assuming you're matching the "Channel:" value with the [SIP/7110xb], there should be no case difference. Of course, you may mean something different.