Cisco UC520-24U-8FXO-K9 Overview page 51

Documentation
Cisco Unity Express administrative and
user documentation
User documentation for Cisco Unified IP
Phones
Document Title
Cisco Unified Communications 500 Series for Small
Business supports Cisco Unity Express Version 2.3.4 and
higher releases.
Cisco Unity Express Documentation, By Version at
http://www.cisco.com/en/US/docs/voice_ip_comm/unity
_exp/roadmap/cuedocs.html
Quick Reference Cards and User Guides at
http://www.cisco.com/en/US/docs/voice_ip_comm/cucme
/ip_phones/roadmap/cucme_phone_roadmap.html
51