System requirements for the Mac The minimum requirements for the installation of the Cisco Jabber Softphone 11.5.2 are as follows: Operating System: • Apple OS X El Capitan 10.11 (or later) • Apple OS X Yosemite 10.10 (or later) • Apple OS X Mavericks 10.9 (or later) The versions preceding Apple OS X 10.9 are no longer supported by Jabber 11.5. If you want to use Jabber on older Apple OS X (older than 10.9) versions you have to install an older version of Jabber. The previous versions of Jabber can be found hire smb://uc-nas1.epfl.ch/download/Old versions/ Please read the readme.txt file in case of problems, contact the HelpDesk 1234@epfl.ch to provide Jabber version 9. Acer D100 Gps Map Download. 2.