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About this task
If you used the Calling Party Number (CPN) Block feature to block displaying your extension on the calls you make, you can change it back using CPN Unblock. CPN Unblock allows parties you call see your extension.
Procedure
1. From the Phone screen, access the Features screen.
2. Select CPN Unblock.
3. Enter your extension number.
4. Press Enter or OK to stop calling party number blocking.