Implementing and Operating Cisco Collaboration Core Technologies (CLCOR) — Question 298

An engineer has a Cisco UCM cluster on version 12.5(1). The engineer registered and configured a new Cisco IP phone 8851 to Cisco UCM and assigned it to a user. If the message on Cisco UCM says "Rejected," this issue should be addressed by pressing the gear button on the phone and choosing administrator settings. What is the next step that the engineer must take to resolve the issue?

Answer options

• A. reset settings > reset device
• B. reset settings > all settings
• C. reset device > all settings
• D. all settings > erase

Correct answer: B

Explanation

The correct answer is B, as resetting all settings will clear any misconfigurations that may be preventing the phone from registering properly. Option A only resets the device settings but may not address all configuration issues, while C resets the device but not the settings, and D erases all settings, which is more drastic than necessary.