Cisco 6800 Series Key Expansion Module Setup Overview
The Cisco IP Phone 6800 Key Expansion Module add extra programmable buttons to the phone. The programmable buttons can be set up as speed-dial buttons, or phone feature buttons.
The Cisco IP Phone 6851 Multiplatform Phone supports only one key expansion module. The key expansion module provides 14 lines or programmable buttons, and two pages. Each page contains 14 lines or buttons.