Feature OperationDS1000/2000 Cordless Telephone User Guide Chapter 2: Features ◆ 212Chapter 2:FeaturesFeature OperationFeature OperationBarge InBarge In is disabled by default.To Barge In on an extension or line:1. Call busy extension or place call on busy line.2. Dial 4. (You hear 2 beeps.)3. Join in the conversation in progress.Call Coverage KeysThere are no Call Coverage keys assigned by default.To answer a call ringing or flashing a Call Coverage key:1. Press the flashing Call Coverage key.Call Coverage Key Flash RatesWhen the key is: The covered extension is:Off Idle or not installedOn BusyFlashing Slowly RingingFlashing Fast In DND for intercom calls (option 2) or all calls (option 3)Wink Off In DND for outside calls (option 1)