Section 700 - Operation Chapter 3. System Features576-13-700 DBS 576 (USA), Revised 6/11/98 27The Built-in Voice Processing Unit is easy to install. It is installed in a cabinet card slot and no cablingis required.Some of the major features include:• Automated attendant• Automatic recording for incoming and outgoing calls• One-touch mail box transfer• Mail box status display (Key LED on digital telephone)• Mail box grouping• 2-way recording• Outside notification• Date/time stamp• Integrated Liquid Crystal Display (LCD) control (with large LCD telephone)• Message light control• Up to 254 mail boxes• Up to 40 hours of message storage time• Up to 8 voice portsFor more information, see the System Built-In Voice Processing Unit Reference Manual.Hardware Requirements• N/ARelated Programming• N/AConsiderations• N/ACall Progress TonesDescriptionThe System supplies a full array of call progress tones. These tones provide audible indications of thestatus of calls and include dial tone, busy tone, ringback tone, error tone, confirmation tone, andsplash tone. The complete specification for these tones may be found in Section 300 - Installation.In addition to call progress tones, Direct Station Select (DSS) LEDs and the display provideadditional indication of the status of calls.Hardware Requirements• N/ARelated Programming• N/A