I've downloaded and been experimenting with the new Cisco Jabber for Windows 9.0.1 client. While I really like the new UI, I haven't been able to get IM/Chat to work at all. Voicemail and phone integration work fine. I can search LDAP (AD) fine. But when it comes to presence and IM, its a mess. Specifically:
1. Adding new contact from LDAP either doesn't add at all, or disappears after restarting the client
2. While the contact list will show presence for individuals when I login, as soon as I attempt to send them an IM, they immediately change status to offline.
3. Any attempt to send an IM results in "Message to User could not be sent"
After a good bit of testing (hours and hours), I realized that it might be the space in the IM address that was causing it, so I created two new users in Active Directory whose sAMAccountName did not include spaces, sync'd them to CUCM, enabled their CUP and CUPC features in Licenses, and logged in with Cisco Jabber. Lo and behold, their presence information updates correctly, I can add and remove from each other's contact lists normaly, and I can IM each other with no problem at all.
So it appears in this new version, user names can no longer contain spaces? I can't imagine I'm alone in having sAMAccountNames in a format that contains spaces and then having it LDAP sync'd with CUCM? Its worth noting it works fine in CUPC 8.5.5, I can IM everyone, presence works fine, etc.
Can somebody from Cisco please test this/confirm it/file a bug, whatever needs to happen, because its not listed as an open caveat on the release notes. I would consider this a severe bug, I know the workaround will be "go back to CUPC 8.5.5" but that cannot be a long term solution.
I would like to close this discussion informing you that the fix for defect CSCtz76102 was integrated on Cisco Jabber for Windows version 9.0(2), which was released last 7th June 2012.