Panasonic DBS 576 Manual Técnica

Section 700 - Operation

Chapter 3. System Features

576-50-700

DBS 576 (USA) issued September 2001

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The DID feature allows an extension to have a dedicated direct number. The dedicated number allows 

calls to be made directly to the extension, without the caller going through the attendant.

The DID number may have from 1 to 4 digits (typically 4).

Each DID Trunk Interface card (VB-44520) supports up to 8 DID trunks.

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The -48V power supply is required.

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N/A

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The DID Trunk card supports 1 to 4-digit dial-pulse (10 pps) or Dual Tone Multifrequency 

(DTMF) signaling. 

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DID numbers must be between 0 and 9999.

Ground start trunks are supported in the System with the VB-44511 Loop Start/Ground Start trunk 

interface. Each card supplies 8 circuits that can be individually configured for either loop start or 

ground start operation.

Ground start trunks are useful in preventing call collision.

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When ground start trunks are used, the -48V power supply is required.

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N/A

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N/A

The System supports ISDN BRI with the VB-44530 ISDN BRI interface unit. The VB-44530 is a T-

Point ISDN-BRI that supports 2 B (bearer) channels and 1 D (data) channel (2B + D; 192kbps). This 

unit connects to an ISDN Data Service Unit (DSU). Point-to-point and point-to-multi operations are 

selectable.

The ISDN-BRI supports enblock setting and enblock setting at the sub-address.

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N/A

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N/A