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45 - 165 IP Telephony v1.0 Lab 3.1.2 Copyright © 2005, Cisco Systems, Inc.
w. The button command is used to define properties to the buttons located to the right of the IP
phone’s LCD. The button command has a number that follows it with the number 1 representing
the top button on the IP phone. The number is followed by a separator character that specifies
phone characteristics. For example, the colon separator assigns the phone a normal ring, a
single pulse for internal calls and a double pulse for external calls.
CMERouterX(config-ephone)# button 1:1
Step 5 Verify Phone Registration
a. From privileged mode, enter the debug ephone register command.
CMERouterX# debug ephone register
b. Plug in the IP phone with MAC address configured previously.
c. View the ephone registration debugging output. This may take a few moments. Verify that the
phone has registered and the proper DN appears with the line.
d. Once the phone has registered, what is the last line of the debug output?
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e. Enter undebug all to turn off all debugging.
CMERouterX(config)# undebug all
f. Save the router configuration. It will be used to complete the next lab.