Cisco Systems 7690, 7940, 7910 Start Up Sequence

Chapter4 Adding the Cisco IP Phone 7914 Expansion Module
Installing the 7914 Expansion Module
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Cisco IP Phone Administration Guide for Cisco CallManager 3.2, Cisco IP Phones 7960/7940/7910
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Start Up Sequence
After the 7914 Expansion Module is installed, upon startup the lighted buttons are
all steady red. Then the LCD screen refreshes and the lighted buttons are al l off
and any line appearances are displayed in the LCD screen. You can then start
using the Expansion Module.