Ericsson LBI-39001 Manual de usuario descargar pdf (Pagina 3)

LBI-39039

1. INTRODUCTION

This manual contains configuration information for the Ericsson MD110 Private Branch Exchange (PBX) when used in

the Jessica PBX Gateway. The MD110 is configured via FIOL, which is provided by Ericsson.

This manual includes references to both T1 and E1 (digital telephone signaling). In some places the notation 23/30 is

used; the 23 indicates the number of T1 voice channels and the 30 indicates the number of E1 voice channels. The

configuration and installation of the MD110 are covered in the Ericsson documentation. Ericsson GE provides a section on

configuration guidelines in this document and also provides a sample configuration disk. Jessica is not a local interconnect

system associated with single-site EDACS systems. For information on local interconnect, refer to LBI-38513.

Additional information for Jessica can be found in the following publications:

LBI-39000, EDACS Jessica PBX Gateway Systems Manual

LBI-39001, EDACS Jessica PBX Gateway Operator's Manual

LBI-39040, EDACS Jessica PBX Gateway PBX Interface User’s Manual

LBI-39080, EDACS Jessica PBX Gateway Operator’s Manual (Quick Reference Guide)

For background information on the MD110 please reference the following Ericsson MD110 Documentation:

LZTU 106 1250, MD110 Technical Product Description, BC6

LZBU 106 100, MD110 Customer Library -- Small Basic, BC6

Basic knowledge of PBXs, and the MD110 in particular, is assumed.

The MD110 PBX is a subsystem of Jessica. The MD110 PBX is the interface to the public switched telephone

network (PSTN). It provides analog or digital trunks to the PSTN or to another PBX. Digital and analog PBX extensions

can be connected to the MD110. An E1/T1 ISDN trunk, from the MD110 to the PBX Interface (PI), provides connection

to EDACS. The Direct Inward System Access (DISA) feature allows PSTN users to call the MD110, receive a second dial

tone, enter an authorization code, and then dial a radio much like a PBX extension places an external call.

NOTE

To bypass DISA, the customer must sign a waiver to obtain a software patch from Ericsson. These arrangements can be

made through an Ericsson GE sales representative.

EDACS radio to PSTN calls are direct inward dial (DID) calls into the MD110, which are routed to the PSTN.

EDACS radio to PBX extension calls are DID calls into the MD110, which are connected to an extension. A Least-Cost

Routing (LCR) code is used to direct calls out of the PBX to the PSTN. The LCR code precedes the dialed number, such

as the "9" typically used in North America to access an outside line. The LCR code is used by both radio and PBX users.

LCR provides for routing based on the number dialed. It can modify numbers when necessary by inserting or deleting

digits. It will wait for sufficient digits before passing them to a route, and will intercept invalid called numbers. In some

cases, LCR will route manually entered digits from the PSTN callers that represent a radio ID. In many cases, External

Destination codes are used instead of LCR codes to route calls to a radio.

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Ericsson LBI-39001 Manual de usuario Pagina 3