Our organization ran into this issue as well and there were multiple versions trying to be pushed that were causing the issue. While most software will abort if detecting a new version is installed, Jabber does not appear to follow this rule. Therefo...

Thanks so much for the recommendation. Our environment is one that mostly uses LDAP but occasionally we build generic Jabber accounts. We were unable to get the voicemail part to work. This post cleared up the issue! Appreciate you helping us out.

Changing to enhanced mode allows for the phone display to show all the lines. If you don't do this, the lines should still work, but the display won't be correct on the phone and the phone will still show as partially registered. You might be able to...

Posting this answer to an outdated problem since I didn't see it in the answer list:As others have stated elsewhere, this usually happens if you have added a line and that line is not registering. This can be corrected by updating the phone button te...