Download Jabber:
Jabber Instance Messaging & Presence for video conferencing
Windows:
Jabber 11.0.1
Software download (11.8.2)
Install documentation download (pdf)
MAC:
Software download (11.5.0)
User Guides:
http://www.cisco.com/c/en/us/support/unified-communications/jabber-windows/products-user-guide-list.html
http://www.cisco.com/c/en/us/support/unified-communications/jabber-mac/products-user-guide-list.html