DSX Product Description Features ◆ 25FeaturesBackground MusicBackground Music (BGM) sends music from a customer-provided music source to speakers in keysets. If anextension user activates it, BGM plays whenever the extension is idle. Incoming calls and Paging announce-ments temporarily override (turn off) Background Music. Background Music requires a customer-providedexternal music.Barge In (Intrusion)Barge In permits an extension user to break into another extension user’s established call. This sets up athree-way conversation between the intruding extension and the two parties on the initial call. The user canBarge In on an Intercom call or outside call.Battery BackupIn the event of commercial AC power failure, the NAND Flash memory on the CPU PCB permanently main-tains the site database. Additionally, an internal battery on the CPU provides short-term backup of the sys-tem date and time (Real Time Clock) and certain station parameters (such as the Caller ID log). The batterywill hold the Real Time Clock and station parameters for up to 10-14 days. When commercial AC power isrestored, the system restarts with all programming and the time and date intact.Additional Battery Backup capability can be provided by a customer-supplied Uninterruptable Power Sup-ply (UPS). The length of time the UPS will power the system when power fails depends on the capacity ofthe UPS unit. Consult with the UPS manufacturer for the specifics.Refer to the Hardware Manual for addi-tional details.Call Coverage KeysA keyset can have Call Coverage Keys for a co-worker’s extensions, Ring Group master numbers and UCDGroup master numbers. The Call Coverage Key lights when the co-worker’s extension is busy, flashes slowlywhen the co-worker has an incoming call, and flashes fast when the co-worker is in Do Not Disturb. The CallCoverage Key can ring immediately when a call comes into the covered extension, ring after a delay or notring at all. In addition, the keyset user can press the Call Coverage Key to intercept their co-worker’s incom-ing call. They can also go off hook and press the Call Coverage key to call the covered extension. An exten-sion can have as many Call Coverage Keys as they have available Feature Keys on their telephone.Broadcast music through the telephone speaker for a more pleasing work environment.In an emergency, use Barge In to get through to a co-worker right away.CAUTIONUnauthorized intrusion on calls using this feature may be interpreted as aninvasion of privacy.The system provides permanent backup of system memory.Call Coverage keys allow an extension user to cover a co-worker’s calls from their own telephone.Call Coverage Key Busy Lamp IndicationsWhen the key is: The covered extension is:Off Idle or not installed
