Bugfixes:
- The line configuration allowed to assign concurrent call numbers to two or more phone lines.
- Editing contacts in the LDAP addressbook in combination with the use of account IDs will no longer cause an error and abort.
- Module updates were not working.
- Switching off authentication in provider lines didn't get saved.
- Removing a provider line caused an unnecessary restart of the phone services.
- The line configuration listed only up to ten lines.
- Cancelling/leaving the update overview without available updates was blocked.
- The progress window for running backups did not open.
- An irrelevant warning of the autoprovisioning was logged during system start.