Ericsson LBI-39001 User Manual

Mobile Communications

LBI-39001

EDACSTM Jessica

PBX Gateway

Operator’s Manual

LBI-39001

TABLE OF CONTENTS

1. SCOPE ................................................................................ 3

2. QUICK USAGE GUIDE..................................................... 4

2.1. Making Phone Calls From An EDACS Radio............. 4

2.2. Calling EDACS Radios From A Phone........................ 5

3. DETAILED USAGE GUIDE.............................................. 7

3.1. Radio Users................................................................... 7

3.2. Phone Users .................................................................. 8

4. GLOSSARY........................................................................ 11

This manual is published by Ericsson GE Mobile Communications Inc., without any warranty. Improvements and changes to this manual

necessitated by typographical errors, inaccuracies of current information, or improvements to programs and/or equipment, may be made by Ericsson GE Mobile Communications Inc., at any time a nd without notice. Such changes will be incorporated into new editions of this manual. No part of this manual may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying and recording, for any purpose, without the express written permission of Ericsson GE Mobile Communications Inc.

LBI-39001

1. SCOPE

This manual explains how to use the Enhanced Digital Access Communications System (EDACS) Jessica Telephone Interconnect System. The Jessica system allows telephones on the Public Switched Telephone Network (PSTN) to reach radio users. Conversely, the system allows radio users to make telephone calls. This manual provides a brief explanation of how to access Jessica services, followed by a more detailed discussion for advanced users.

Several terms used throughout this manual may be unfamiliar to the user. These terms are explained in this section and in the Glossary to help avoid confusion. Private Branch Exchange (PBX) is a telephone switch commonly used in business applications. For example, dialing the last four digits of a telephone number to call someone else i n your office makes use of a PBX to reach that person. Public Switched Telephone Network (PSTN) is a telephone switch for public use, as opposed to private use. For example, dialing your home telephone number from your office uses a PSTN to reach the home number. An inbound call is a phone-originated call to a radio and an outbound call is a radio-originated call to a phone. Hang time is a specified time (hang time default is 30 seconds at the PBX Interface) during which the Pushto-Talk (PTT) button on a radio must be pressed to continue the call. If the PTT button is not pushed within the hang time limit, then EDACS disconnects the call. Conversation time limit is the maximum amount of time (default is 5 minutes at the PBX Interface) allowed for all interconnect calls. If a call exceeds the conversation limit, then EDACS drops the call.

NOTE

Access to EDACS Systems features depends on how the EDACS System Administrator has configured the system. Check with your EDACS System Administrator for information on proper usage before accessing the system.

LBI-39001

2. At the second dial tone, the PSTN user

enters the following command

sequence:

"*" + FC + "*" + AC + "#'"

FC is the MD110 feature code

indicating that an authorization code

(AC) follows. This feature code is

market-dependent and is typically a

single digit. For example, a "6" is used

as the FC in the U.S.

AC is the authorization code defined

for the caller. The AC is customer-

defined and may be from 1 to 7 digits,

but cannot begin with "0."

3. Once the phone user has entered the

command sequence, a dial prompt is

generated.

4. Before the radio ID is entered, the

phone user may need to enter the

EDACS LCR code. Similar to the

LCR code for radio-originated PSTN

calls, the EDACS LCR is customer-

defined, but typically is "7." The

PSTN user then enters the EDACS

radio ID.

2. QUICK USAGE GUIDE

This section presents a brief summary on how to place phone calls through the EDACS Jessica system. For more information about the access methods, refer to the detailed usage section.

2.1. MAKING PHONE CALLS FROM AN EDACS

RADIO

These "generic" instructions for all EDACS radios assume a typical Jessica configuration. To determine the exact sequences to access Jessica features from a specific radio, refer to the operator's manual for that radio.

The steps for making phone calls from an EDACS radio are presented below.

Placing a Call

Initiate the call by one of the following actions:

1. Press the "*" key, enter the destination telephone number, an d then depress the PTT button.

2. Enter the destination telephone number, press the "*" key, and then depress the PTT button.

3. Press the special call button (typically SCN or SCAN). Select the telephone number from the list and depress the PTT button.

Answering a Call

Simply press the PTT button and hold while talking. Full duplex radio users need only press PTT initially.

Sustaining a Call

Press the PTT button whenever you hear the hang time warning tone to ensure that your call is not disconnected. EDACS has a "hang time" that will drop a call if the user fails to press the PTT button within a specified time (default is 30 seconds at the PBX Interface). Full duplex radio users need only press PTT initially.

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