Nortel Remote Office 9150 Installation And Administration Manual

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555-8421-215

Remote Office 9150

Installation and Administration Guide

Product release 1.0 Standard 1.0 March 2000

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NTDR84AA

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Remote Office 9150

Installation and Administration Guide

Product release: 1.0 Publication number: 555-8421-215 Document release: Standard 1.0 Date: March 2000

Printed in the United States of America

All information contained in this document is subject to change without notice. Nortel Networks reserves the right to make changes to equipment design or program components, as progress in engineering, manufacturing methods, or other circumstances may warrant.

*Nortel Networks, the Nortel Networks logo, the Globemark, How the World Shares Ideas, and Unified Networks, Meridian 1, and SL-100 are trademarks of Nortel Networks.

PROCOMM PLUS is a trademark of Datastorm Technologies, a subsidiary of Quarterdeck Corporation.

HYPERTERMINAL is a trademark of Hilgraeve, Incorporated.

MICROSOFT, MS-DOS, WINDOWS, and WINDOWS NT are trademarks of Microsoft Corporation.

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FCC: Customer instructions

The Remote Office 9150 unit complies with Part 68 of the FCC rules. On the bottom side of the equipment is a label that contains, among other information, the FCC registration number and ringer equivalence number (REN) for this equipment. If requested, this information must be provided to the telephone company.

The Remote Office 9150 unit uses the following standard connections and codes: USOC Code: RJ21X, Facility Interface Code: 02DU5-64, and Service Order Code: 6.0F.

The REN number shown on the label is used to determine the number of devices that can be connected to the telephone line. Excessive RENs on the telephone line can result in the devices not ringing in response to an incoming call. The sum of the RENs should not exceed five (5.0). To be certain of the number of devices that can be connected to a line, as determined by the total RENs, contact the local telephone company.

If the equipment causes harm to the telephone network, the telephone company will notify you in advance that temporary discontinuance of service might be required. However, if advance notice is not practical, the telephone company will notify you as soon as possible. Also, you will be advised of your right to file a complaint with the FCC if you believe it is necessary.

The telephone company may make changes in its facilities, equipment, operations, or procedures that could affect the operation of the equipment. If this happens, the telephone company will provide advance notice in order for you to make necessary modifications to maintain uninterrupted service.

No repairs can be performed by you. If you experience trouble with this equipment, please contact the following for repair and warranty information:

Nortel Networks Product Service Center 640 Massman Drive. Nashville, TN 31210 Phone: 1-800-251-1758

If the equipment is causing harm to the telephone network, the telephone company might request that you disconnect the equipment until the problem is resolved.

This equipment cannot be used on public coin phone service provided by the telephone company. Connection to party line service is subject to state tariffs. Contact the state public utility commission, public service commission, or corporation commission for information.

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Industry Canada: Equipment attachment limitation

NOTICE: The Industry Canada Label identifies certified equipment. This certification means that the equipment meets telecommunications network protective, operational, and safety requirements as prescribed in the appropriate Terminal Equipment Technical Requirements document(s). The Department does not guarantee that the equipment will operate to the user’s satisfaction.

Before installing this equipment, you should ensure that it is permissible to be connected to the facilities of the local telecommunications company. The equipment must also be installed using an acceptable method of connection. You should be aware that compliance with the above conditions might not prevent degradation in service in some situations.

Repairs to certified equipment should be coordinated by a representative designated by the supplier. Any repairs or alterations made by the user to this equipment, or equipment malfunctions, can give the telecommunications company cause to request you to disconnect the equipment.

You should ensure, for your own protection, that the electrical ground connections of the power utility, telephone lines, and internal metallic water pipe system, if present, are connected together. This precaution can be particularly important in rural areas.

Caution:

the appropriate electric inspection authority, or electrician, as appropriate. NOTICE: The Ringer Equivalence Number (REN) assigned to each terminal device

provides an indication of the maximum number of terminals allowed to be connected to a telephone interface. The termination on an interface can consist of any combination of devices subject only to the requirements that the sum of the Ringer Equivalence Numbers of all the devices does not exceed 5.

You should not attempt to make such connections yourself, but should contact

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March 2000 Publication history

Publication history

March 2000

This is the Standard 1.0 issue of the Remote Office 9150 Installation and Administration Guide for Remote Office

9150 Release 1.0.

Installation and Administration Guide

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Publication history Standard 1.0

vi Remote Office 9150

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Contents

About this document xiii

About this guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiv

Skills you need . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xviii

Related information products . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xx

Conventions used in this guide. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxii

Remote Office 9150 description 1

Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Section A: Product description 7

Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

What is Remote Office 9150?. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Remote Office 9150 hardware description. . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Add-on modules description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Connection options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

How the Remote Office 9150 unit works. . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Section B: Feature description 31

Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

System security. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Trunking, connection types, and call timers. . . . . . . . . . . . . . . . . . . . . . . . . . 38

Telephones . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Voice over IP features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Port management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Station priority . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

Connection bandwidth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

Local calling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

Online/offline table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Other supported features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

Administration software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

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Contents Standard 1.0

Planning for installation 63

Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

Installation checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

Physical environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

Administration PC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

Network considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

Managing trunk connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

Station configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88

Security. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

Planning for future growth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94

Deployment options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97

Planning the configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101

Installing the Remote Office 9150 unit 105

Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106

General safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108

Required tools. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110

Unpacking and inspecting the equipment. . . . . . . . . . . . . . . . . . . . . . . . . . . 111

Removing the Remote Office 9150 unit cover . . . . . . . . . . . . . . . . . . . . . . . 113

Installing a trunk interface or DSP application module . . . . . . . . . . . . . . . . 116

Mounting the Remote Office 9150 unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122

Connecting the Remote Office 9150 unit. . . . . . . . . . . . . . . . . . . . . . . . . . . 129

Powering up the Remote Office 9150 unit . . . . . . . . . . . . . . . . . . . . . . . . . . 135

Installing the software. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138

Using the Configuration Wizard to perform initial configuration . . . . . . . . 141

Testing the network connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155

Configuration Manager overview 161

Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162

Starting Configuration Manager. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164

Configuration Manager description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167

Using the online Help. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175

Configuration files description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 176

Working with configuration files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 183

Selecting the device type for offline configuration . . . . . . . . . . . . . . . . . . . 187

Logging on to a unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189

Logging off from a unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197

Performing a system restart or shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . 198

Closing Configuration Manager . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201

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Configuring the Remote Office 9150 unit 203

Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204

Section A: System settings 211

Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212

Configuring the system settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 215

Section B: IP addresses 221

About IP addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222

Configuring the Remote Office 9150 unit’s IP interface . . . . . . . . . . . . . . . 227

Section C: RLC connection information 229

Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 230

Configuring the RLC connection information . . . . . . . . . . . . . . . . . . . . . . . 231

Configuring the security level. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 235

Section D: Trunk interface information 239

About trunks and trunk groups . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 240

Configuring BRI trunks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 242

Configuring trunk groups . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 246

Section E: Stations 251

Station overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 252

Defining stations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260

Defining a fax station . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 266

Using Remote Office 9150 stations 271

Modes of operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 272

Making and receiving calls. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 276

Indicator updates. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 280

Display messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 282

Telephone features operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 285

Going online and offline. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 289

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Administration 291

Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 292

Changing the administration password. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 294

Section A: Performing backups and restores 299

Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300

Creating a backup configuration file . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 301

Restoring the configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 303

Section B: Working with system logs 309

Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 310

Displaying logs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 311

Resizing logs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 313

Clearing logs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 314

Section C: Viewing statistics 315

Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 316

Trunk Connection Statistics screen. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 318

Bandwidth Connection Statistics screen. . . . . . . . . . . . . . . . . . . . . . . . . . . . 321

Caller Information Statistics screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 324

Hardware Statistics screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 327

Local Call Statistics screen. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 330

Remote Call Statistics screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 332

Section D: Performing upgrades 335

Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 336

Verifying the firmware and software version. . . . . . . . . . . . . . . . . . . . . . . . 338

Obtaining the latest upgrade file. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 340

Extracting upgrade files from the download file . . . . . . . . . . . . . . . . . . . . . 342

Performing a firmware upgrade . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 344

Performing a software upgrade. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 348

Troubleshooting 349

Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 350

Before you begin. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 352

Remote Office 9150 LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 353

Digital telephone. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 355

Device connectivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 360

Software problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 364

Using Configuration Manager’s Ping. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 366

Recovering from a catastrophic failure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 369

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Network engineering guidelines 371

Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 372

Remote Office traffic engineering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 375

Assessing WAN link resources. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 386

Quality of Service evaluation process overview. . . . . . . . . . . . . . . . . . . . . . 393

Setting the Quality of Service. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 398

Measuring the intranet Quality of Service . . . . . . . . . . . . . . . . . . . . . . . . . . 403

Reducing delays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 412

Implementing Quality of Service in IP networks . . . . . . . . . . . . . . . . . . . . . 416

Planning forms 421

Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 422

Section A: Remote Office 9150 forms 425

Completing the Remote Office 9150 forms . . . . . . . . . . . . . . . . . . . . . . . . . 426

Configuration Information—Stations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 428

Configuration Information—ISDN BRI Modules . . . . . . . . . . . . . . . . . . . . 432

Configuration Information—Network Connections. . . . . . . . . . . . . . . . . . . 435

Configuration Information—Dialing Plans . . . . . . . . . . . . . . . . . . . . . . . . . 436

System expansion worksheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 437

Section B: Meridian Internet Gateway Reach Line Card forms 441

Completing the MIG RLC forms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 442

Connection Information—16 ports. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 444

Connection Information—32 ports. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 449

Online/Offline Table Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 457

System expansion worksheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 458

Sample configuration files 461

Example of a network. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 462

Voice port configuration on the Meridian 1 PBX. . . . . . . . . . . . . . . . . . . . . 464

Data port configuration on the Meridian 1 PBX. . . . . . . . . . . . . . . . . . . . . . 466

MIG RLC configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 468

Remote Office 9150 unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 472

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Contents Standard 1.0

Connection pin-out tables 475

TELCO 1 connector pin-out table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 476

TELCO 2 connector pin-out table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 478

Ethernet connector pin-out table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 480

Admin (serial) connector pin-out table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 481

Power connector pin-out table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 482

Glossary 483

Fields index 505

Index 511

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Preface

About this document

In this preface

About this guide xiv Skills you need xviii Related information products xx Conventions used in this guide xxii

Installation and Administration Guide xiii

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About this document Standard 1.0

About this guide

Introduction

The Remote Office 9150 Installation and Administration Guide describes how to install, configure, and manage the Remote Office 9150 unit in a branch office.

Who should read this guide

This guide is for the following individuals who are responsible for the installation, configuration, and day-to-day management of the Remote Office 9150 unit system:

Nortel Networks distributors

■

telecom network managers and administrators

■

data network managers and administrators

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branch office managers and administrators

■

Assumptions

This document assumes that you have the skills listed on page xviii.

How to use this guide

This guide explains, step-by-step, how to install, configure, and use the Remote Office 9150 unit product. To get an overview of what you need to do, review this guide before beginning Remote Office 9150 unit installation and configuration.

When you are ready to begin, follow the steps in the order in which they are presented. This helps you to achieve a successful installation.

In this guide

Chapter 1, “Remote Office 9150 description” This chapter describes the Remote Office 9150 system, how it works, and its features.

xiv Remote Office 9150

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March 2000 About this document

Chapter 2, “Planning for installation” This chapter helps you to plan for Remote Office 9150 unit installation and configuration. This chapter includes topics such as

choosing a suitable location

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issues to consider when incorporating the Remote Office 9150 unit product

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into your networks managing system resources

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planning network security

■

planning user station configuration

■

installation checklists

■

methods for implementing the Remote Office 9150 unit into your network

■

gathering information for configuration

■

planning for future growth

■

Chapter 3, “Installing the Remote Office 9150 unit” This chapter explains how to

install and connect the Remote Office 9150 unit

■

install or replace trunk interface and DSP application modules

■

install and start the Configuration Manager software

■

Chapter 4, “Configuration Manager overview” This chapter describes the Configuration Manager screens. It also describes the conventions used in this guide to present instructions for working with the screens.

Chapter 5, “Configuring the Remote Office 9150 unit” This chapter explains how to use the Configuration Manager software to configure

trunks used by the Remote Office 9150 unit

■

connection information needed to establish connections between the

■

MIG RLC on the host PBX and the Remote Office 9150 unit at the branch office

user stations connected to the Remote Office 9150 unit

■

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Chapter 6, “Using Remote Office 9150 stations” This chapter describes digital telephone usage and features as they pertain to Remote Office 9150.

Chapter 7, “Administration” This chapter describes how to perform periodic administration tasks, such as performing backups, restores, and upgrades, and viewing system logs and statistics.

Chapter 8, “Troubleshooting” This chapter describes how to determine why the Remote Office 9150 and its connected telephones are not working.

Appendix A, “Network engineering guidelines” This appendix provides guidelines for evaluating and setting Quality of Service on your IP network. If you install the Remote Office product in your IP network without performing the preliminary assessments that are described, this can result in unacceptable degradation in voice service to users.

Appendix B, “Planning forms” This appendix provides sample forms to help you

plan the Remote Office 9150 unit configuration

■

determine what you need to expand the Remote Office 9150 unit’s voice

■

processing capabilities

Appendix C, “Sample configuration files” This appendix provides the following:

a sample network diagram that shows one host site (MIG RLC installed on

■

the host PBX) and one Remote Office 9150 unit (with one user station) sample configurations using information from the network diagram

■

The purpose of this appendix is to demonstrate the relationship between configuration settings on each unit in the network.

Appendix D, “Connection pin-out tables” This section provides pin-out tables for each Remote Office 9150 unit connector.

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Glossary Many terms in this manual have meanings specific to the telecommunications and data networking fields, or specific to the Remote Office 9150 unit. You can find the definitions of terms used in this manual, as well as a few related terms.

Indexes The Fields index helps you to locate information about the fields on the Configuration Manager screens. Use the index when you want to know the function of the field.

The main index provides an alternative method of locating information in this guide.

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Skills you need

Introduction

This section describes the skills and knowledge you need to use this guide effectively.

Nortel Networks product knowledge

Knowledge of, or experience with, the following Nortel Networks products is helpful when working with the Remote Office 9150 unit:

the Meridian 1 switch

■

Meridian digital telephones

■

Telecommunications experience

Knowledge of, or experience with, telecommunications is helpful when working with the Remote Office 9150 unit:

Extended Digital Line Cards (XDLCs) and how they work

■

configuring voice and data ports

■

configuring ISDN BRI, PRI (or other types of trunks)

■

establishing telephone connections

■

Data networking experience

Knowledge of, or experience with, data networking is helpful when working with the Remote Office 9150 unit:

networking fundamentals and concepts

■

IP protocol

■

network addressing and routing

■

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March 2000 About this document

network traffic analysis and provisioning

■

network security

■

Voice over IP (general knowledge)

■

PC experience or knowledge

Knowledge of, or experience with, the following PC tasks is helpful when administering the Remote Office 9150 unit:

general knowledge of Microsoft Windows

■

software installation

■

network configuration

■

Other experience or knowledge

Other types of experience or knowledge that can be useful include the following:

analytical skills

■

troubleshooting skills

■

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Related information products

Introduction

This section lists information products where you can find additional information.

Meridian 1 documents

The following documents describe how to establish telephone and trunk connections between the Remote Office 9150 unit and the BIX in-building cross-connect system:

Meridian 1 Installation planning (NTP 553-3001-120)

■

Telephone and attendant console installation (NTP 553-3001-215)

■

BIX* In-Building Cross-Connect System Material Installation and

■

Servicing (Wall-Mounted System) (NTP 631-4511-200)

Remote Office 9150 and MIG RLC documents

Remote Office and MIG RLC Release Notes (NTP 555-8421-102)

The Release Notes describe the features and known problems for the Meridian Internet Gateway Reach Line Card (MIG RLC) and Remote Office 9150 branch office system.

The printed copy might supersede the copy provided on the CD-ROM. You can obtain the most up-to-date version from the Nortel Networks web site. For download instructions, see “How to obtain the product documentation and CD-ROMs” on page xxi.

Meridian Internet Gateway Reach Line Card Installation and Administration Guide (NTP 555-8421-210)

This document, written for both the Meridian 1 installer and administrator, explains how to install and configure the Meridian Internet Gateway Reach Line Card on the Meridian 1 PBX.

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March 2000 About this document

Installer’s Notes

The following Installer’s Notes are quick reference documents that are provided with the component discussed in the document:

Meridian Internet Gateway Reach Line Card Installer’s Notes

■

Remote Office 9150 and MIG RLC DSP Application Module Installer’s

■

Notes Remote Office 9150 Trunk Interface Module Installer’s Notes

■

Each document summarizes the installation and configuration procedures for the component and provides cross-references to other documents for more detailed information.

Note: You cannot order these documents separately.

CD-ROMs

The following CD-ROMs are available for the Remote Office 9150 unit:

Remote Office Product CD-ROM, which contains

■

documentation in Adobe Acrobat Reader (PDF) format

■

firmware

■

Configuration Manager software

■

Remote Office Technical Training Course 100 CD-ROM

■

The Technical Training CD-ROM contains a web-based course for Nortel Networks distributors, and administrators of Nortel Networks customers. The course explains how to install, configure, and manage the MIG RLC and Remote Office 9150 unit.

How to obtain the product documentation and CD-ROMs

You can order the printed documentation and CD-ROMs from your Nortel Networks distributor.

You can also download the documentation in Adobe Acrobat Reader (PDF) format from the Nortel Networks web site. For more information, refer to the Remote Office and MIG RLC Release Notes (NTP 555-8421-102).

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Conventions used in this guide

Introduction

This section describes the conventions used in this guide.

Precautionary messages

Note: A note describes the secondary results of procedures or commands, or special conditions under which you must use a procedure or command.

ATTENTION

Provides information essential to the completion of a task.

CAUTION

Risk of data loss or equipment damage

Cautions you against unsafe practices or potential hazards, such as equipment damage, service interruption, or loss of data.

WARNING

Risk of minor personal injury

Warns you of a potentially hazardous situation that can result in minor or moderate injury.

DANGER

Risk of death or serious personal injury

Alerts you to an immediate hazard that can result in death or serious injury.

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March 2000 About this document

DANGER

Risk of electric shock

Alerts you to an immediate hazard that can result in death or serious injury through high voltage or electric shock.

How this guide presents instructions for selecting menu options

To simplify the instructions for selecting options from the menu, this guide abbreviates the selection path. For example, if a procedure requires you to choose Over IP from the Remote Connectivity menu, which is under the Tests menu, this guide uses the following style:

From the menu, choose Tests

Remote Connectivity ➝ Over IP.

➝

How this guide presents instructions for displaying property sheets

To simplify the procedures for accessing property sheets throughout this guide, the instructions for displaying a particular property sheet are summarized in a “Getting there” statement.

The procedure for displaying the screen that you need depends on whether you are

■

performing an online configuration (that is, you are connected to a node by serial port or Telnet)

■

performing an offline configuration (that is, you are not connected to a node)

Example

Getting there

9150

➝

Configuration Manager ➝ IP Configuration

The long instruction for this example is shown on the next page.

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Do the following:

IF THEN

you are performing an offline configuration

select the device type as described in “Selecting the device type for offline configuration” on page 187.

you are performing an online configuration

connect to, and then log on to the node as described in “Logging on to a unit” on page 189.

In the left pane, click the plus sign beside Configuration Manager to expand the node list.

Click IP Configuration.

Result:

The IP Configuration property sheet for the Remote Office 9150

unit appears in the right pane.

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Chapter 1

Remote Office 9150 description

In this chapter

Overview 2

Section A: Product description 7 Section B: Feature description 31

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Remote Office 9150 description Standard 1.0

Overview

Introduction

The Remote Office 9150 unit provides full-featured host Meridian 1 PBX services to as many as 32 users located in your office.

Components

The Remote Office 9150 solution consists of the following components:

Meridian Internet Gateway Reach Line Card (MIG RLC)

■

The MIG RLC is installed in the Meridian 1 PBX at the host location and relays voice and signaling information from the digital telephones connected at the Remote Office 9150 site to the Meridian 1 PBX at the host site.

Remote Office 9150 unit

■

The Remote Office 9150 unit is installed in your office. It relays voice and signaling information between the digital telephones in your office to the Meridian 1 PBX at the host location.

10BaseT Ethernet and ISDN Basic Rate Interface (BRI) connections

■

These connections provide the voice and data connections between the Remote Office 9150 unit and the host PBX.

ISDN BRI trunk interface modules are supported for the following:

■

U interface

■

S/T interface

■

optional Digital Signal Processor (DSP) application modules

■

You can add these modules to increase the system’s voice processing capacity.

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March 2000 Remote Office 9150 description

What does the Remote Office 9150 unit do?

The Remote Office 9150 unit uses the Voice over IP technology to route voice conversation and phoneset control signals between your office and the host PBX over your existing IP data network. The Remote Office 9150 unit can also route calls over the circuit-switched network.

This is accomplished using the following components:

the Remote Office 9150 unit located in your office

■

the MIG RLC located on the Meridian 1 PBX at the host site

■

These two components, along with the 10BaseT Ethernet and ISDN BRI connections, extend the host PBX services to users in your office.

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Remote Office 9150 description Standard 1.0

The illustration below shows the connection between a Remote Office 9150 unit and a MIG RLC.

Remote site 1: Branch office

Up to 32 digital telephones Fax machine

Remote Office 9150

WER

ETHERN

R X

C O

L L

1 L 1

MODULE

L 2

2 L 1

L 2

L 1

L 2

43 L 1

V.35

L 2

TATUS

R X

Ethernet

Central office trunks (ISDN BRI)

ISDN PRI

Corporate office

Meridian 1 PBX

Corporate

WAN

Telephone

Network

Meridian Internet

Public

Ethernet

Gateway Reach Line Card

G101391

Telephone call modes

Calls can be placed through the Remote Office 9150 unit in any of the following modes:

host-controlled mode

■

When a call is processed through the host PBX, the call is in hostcontrolled call mode. The call can be routed over the IP network or the circuit-switched network.

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March 2000 Remote Office 9150 description

local-controlled call mode

■

When a call is processed through the local PSTN, the call is in localcontrolled call mode.

Placing calls

To place a call in host-controlled mode, users can pick up the handset or press the primary (host) line key, and then dial the number of the party they are calling.

To place a call in local-controlled mode, users can pick up the handset or press the secondary (local) line key, and then do one of the following:

to place an external call: dial the trunk access code to obtain an outgoing

■

trunk, then dial the number of the party they are calling to place an internal call: dial the extension of another station in the same

■

office

Product features

The Remote Office 9150 unit offers the following features:

system security that supports three security levels—no security, calling line

■

identification (CLID), and security identifier trunking allocation that automatically allocates trunk bandwidth as it is

■

needed support for Meridian digital telephones, telephone modules, and standard

■

calling features Voice over IP features that automatically switch from the IP network to the

■

circuit-switched network when the voice Quality of Service (QoS) falls below a predetermined threshold, and back to the IP network when the QoS returns to normal

Voice packet features include voice compression, jitter attenuation, and silence suppression.

permanent or demand connections

■

If the connection is defined as call on demand, minimum call duration and idle timers can be configured.

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Remote Office 9150 description Standard 1.0

single ports, multi-user ports, and dynamic port pooling that assigns users

■

to the first available port the ability to ensure QoS for specific users

■

This is done by assigning more priority to those users. There are four levels of priority:

high

■

normal

■

IP only

■

circuit-switched only

■

local calling that allows you to place calls to other extensions within your

■

office, or to telephones in your local community an online/offline table that is configured on the MIG RLC for scheduling

■

times

that the ISDN BRI connection to the host PBX is made available to the

■

Remote Office 9150 site Note: When the Remote Office 9150 unit is in offline mode, calls

cannot be made or received through the host PBX over the IP or circuitswitched network.

at which all telephones in your office can use only the local PSTN

■

service

This allows you to ensure that unwanted ISDN BRI telephone calls through the host PBX are disabled after business hours.

an emergency service number that can be programmed with your local

■

emergency number an analog port that can send and receive faxes

■

administrative tools that allow you to perform a variety of administrative

■

tasks, such as

changing the administration password

■

making configuration changes

■

viewing the system logs and statistics

■

performing upgrades, backups, and restores

■

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March 2000 Remote Office 9150 description

Section A: Product description

In this section

Overview 8 What is Remote Office 9150? 10 Remote Office 9150 hardware description 13 Add-on modules description 17 Connection options 19 How the Remote Office 9150 unit works 21

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Overview

Introduction

This section provides a brief description of each Remote Office 9150 unit feature.

Hardware

The Remote Office 9150 unit is installed in your office and can be mounted on a desk, in a rack, or on the wall. The unit contains LED displays and network connectors, and is shipped with a 110/220 V power supply and an RS-232 serial cable.

Add-on modules

The Remote Office 9150 unit can support up to four ISDN BRI (U or S/T) trunk interface modules and up to three Digital Signal Processor (DSP) application modules.

Connection options

Communications between the Remote Office 9150 unit in your office and the MIG RLC on the host PBX take place using 10BaseT Ethernet and ISDN Basic Rate Interface (BRI) connections. An analog port for fax machines is also provided.

How the Remote Office 9150 unit works

There are two major components to the Remote Office 9150 unit:

the Remote Office 9150 unit located in your office

■

the MIG RLC located on the Meridian 1 PBX at the host site

■

These two components, along with the connection options described on page 19, extend the host PBX services to users in your office.

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March 2000 Remote Office 9150 description

The Remote Office 9150 unit can operate in

host-controlled mode: calls are routed through the host PBX

■

local-controlled mode: calls are routed through the local PSTN, or to other

■

stations in the same office

To understand how calls are routed in the various modes, see the sample illustrations beginning on page 24.

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Remote Office 9150 description Standard 1.0

What is Remote Office 9150?

Introduction

Remote Office 9150 is a product that provides full-featured host Meridian 1 PBX services to as many as 32 users located in your office.

The Remote Office 9150 unit uses the Voice over IP technology to route voice conversation and phoneset control signals between your office and the host PBX over your existing IP data network.

The Remote Office 9150 unit can also use the circuit-switched network to route calls if

the voice QoS degrades below predefined thresholds

■

In this case, Nortel Networks’ patented QoS transitioning technology automatically transitions calls to the circuit-switched network when the voice QoS degrades. Calls transition back to the IP network when the QoS returns to normal.

you are not yet ready to use the IP network to route voice calls

■

You can configure the Remote Office 9150 unit to use only the circuitswitched network, and implement the IP network functionality when you are ready.

This section provides a brief description of each component used in a Remote Office 9150 system.

Meridian Internet Gateway Reach Line Card

The Meridian Internet Gateway Reach Line Card (MIG RLC) is installed in the Meridian 1 PBX at the host location. The MIG RLC provides service for up to 16 ports on a 1-slot card, or 32 ports on a 2-slot card. It emulates a standard digital line card (XDLC), providing PBX functionality for telephones at remote locations (including sites using the Remote Office 9150 unit).

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March 2000 Remote Office 9150 description

The MIG RLC relays voice and signaling information between the digital telephones connected at the Remote Office 9150 site to the Meridian 1 PBX at the host site. Like the Remote Office 9150 unit, the MIG RLC can route calls over the IP network or the circuit-switched network, or both when the QoS transitioning technology feature is configured.

For a more detailed description, refer to the Meridian Internet Gateway Reach Line Card Installation and Administration Guide (NTP 555-8421-210).

Remote Office 9150 unit

The Remote Office 9150 unit installed in your office provides PBX functionality for up to 32 digital telephones. Voice and signaling information between the digital telephones connected at your office and the MIG RLC installed on the Meridian 1 PBX at the host location is relayed over one or both of the following:

IP network

■

circuit-switched network

■

For more details, see “Remote Office 9150 hardware description” on page 13.

10BaseT Ethernet and ISDN BRI connections

These connections provide the voice and data connections between the Remote Office 9150 unit and the host PBX. See “Connection options” on page 19 for a more detailed description.

Optional trunk interface modules

You can install up to four ISDN BRI U or S/T interface modules in the Remote Office 9150 unit. They provide the interface to the ISDN BRI lines provided by your telephone service provider, and are used to route calls over the circuitswitched network.

Optional Digital Signal Processor application modules

You can install up to three Digital Signal Processor (DSP) application modules to increase the Remote Office 9150 unit’s voice processing capacity. (See “Add- on modules description” on page 17).

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Remote Office 9150 description Standard 1.0

Configuration Manager

Use the following tools to configure the Remote Office 9150 unit:

for first-time configuration: Configuration Wizard

■

The Configuration Wizard provides the ability to configure only the minimum information needed to get the Remote Office 9150 unit up and running.

For more details, see “Using the Configuration Wizard to perform initial configuration” on page 141.

for ongoing configuration and administration: Configuration Manager

■

For more details, see the following:

Chapter 4, “Configuration Manager overview”

■

Chapter 5, “Configuring the Remote Office 9150 unit”

■

Chapter 7, “Administration”

■

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March 2000 Remote Office 9150 description

Remote Office 9150 hardware description

Introduction

The Remote Office 9150 unit is installed in your office and can be mounted on a desk, in a rack, or on the wall. This section describes the LED displays, power supply, cables, and connectors for the unit.

LEDs on the Remote Office 9150 unit

The following diagram shows the LEDs on the front panel of the Remote Office 9150 unit.

Power

Ethernet Modules V.35 Status

432

Note: The V.35 LEDs are for future use.

G101402

Installation and Administration Guide 13

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Remote Office 9150 description Standard 1.0

The operational status of the Remote Office 9150 unit is indicated by these LEDs as described in the following table.

LED type LED name Description

Power On When lit, this LED indicates that power is

present.

Ethernet COLL When flashing, this LED indicates that a

collision has occurred on the Ethernet network.

TX When flashing, this LED indicates that data is

being transmitted by the Remote Office 9150 unit over the Ethernet network.

RX When flashing, this LED indicates that data is

being presented to the Remote Office 9150 unit over the Ethernet network.

Module L1 and L2 L1 LED:

not lit: there is no D-channel activity

■

flashing: the D-channel is active but the

■

B-channel is not active lit solid: both the D- and B-channels are

■

active

L2 LED:

not lit: the B-channel is not active

■

lit: the B-channel is active

■

V.35 TX For future use.

RX For future use.

Boot status Status Indicates the health of the Remote Office

9150 unit. This LED stays lit when the power on self-test is successful. If it goes out, there is a problem.

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March 2000 Remote Office 9150 description

Note: Since Ethernet traffic has a nominal speed of 10 Mbps, the flashing Ethernet COLL, TX, RX LEDs are cosmetic. They do not reflect real-time traffic patterns or packets.

Connectors

The following connections are made from the rear panel of the Remote Office 9150 unit to the telephone and data networks:

Two 25-pair connectors (labeled TELCO 1 and TELCO 2) provide tip and

■

ring connections to user stations (telephones) and central office trunks (ISDN BRI).

These connections provide the interface to the telephone network and the Public Switched Telephone Network (PSTN).

An RJ-45 connector (labeled ETHERNET) provides a 10BaseT Ethernet

■

connection. This connection provides the ability to pass both voice and data traffic over

the existing Ethernet network. A DB-9 connector (labeled ADMIN) provides an RS-232 serial port

■

connection. You can use this serial port connection to configure a Remote Office 9150

unit that is directly connected to a PC. The DB-25 connector (labeled V.35) is for future use.

■

Refer to Chapter 2, “Planning for installation,” for a detailed description of cables and connectors.

Mounting options

The Remote Office 9150 unit can be mounted on a desk, in a rack, or on the wall.

Universal power supply

The Remote Office 9150 unit includes an auto-sensing 110/220 V power supply that is compatible with commercially available UPS systems. See the diagram on page 16.

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Remote Office 9150 description Standard 1.0

Remote Office 9150 power supply

TELCO 1 ETHERNET TELCO 2 POWER ADMIN

Remote Office 9150

V.35

Remote Office 9150 cable

To wall outlet

Power supply

Power cable

G101412

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March 2000 Remote Office 9150 description

Add-on modules description

Introduction

The Remote Office 9150 unit can support trunk interface modules, such as ISDN BRI U or S/T interfaces, and up to three DSP application modules.

Optional trunk interface modules

The Remote Office 9150 unit can support up to four U or S/T ISDN BRI interfaces. Each module supports one ISDN BRI line (with two B-channels) from the local telephone service provider.

Initially, the Remote Office 9150 unit ships with no ISDN BRI modules installed.

ISDN BRI module

Remote Office ISDN BRI module

U interface (NTDR74xx) S/T interface (NTDR75xx)

G101420

Installation and Administration Guide 17

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Remote Office 9150 description Standard 1.0

Optional DSP application modules

DSPs convert voice and fax into digital data for transport over the IP and circuitswitched networks. Initially, the Remote Office 9150 unit ships with the ability to support up to eight simultaneous calls through a DSP that is built into the Remote Office 9150 unit’s motherboard. To add support for up to 32 simultaneous calls, you must install DSP application modules. Up to three DSP application modules are supported. Each module provides up to eight more simultaneous calls.

In addition, you can configure the Remote Office 9150 unit for blocking with only enough modules to support the maximum number of simultaneous calls. For example, a Remote Office 9150 unit that is equipped with a single DSP application module supports 16 simultaneous calls, for a ratio of 2:1 blocking. For more details, see “Planning for future growth” on page 94.

DSP application module

Remote Office DSP module (NTDR73xx)

G101388

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March 2000 Remote Office 9150 description

Connection options

Introduction

Communications between the Remote Office 9150 unit in your office and the host PBX take place using 10BaseT Ethernet or ISDN BRI connections, or both. This section provides a description of each of these connections.

10BaseT Ethernet interface

Voice over IP technology is used to carry voice conversation and phoneset control signals over your IP network to the host PBX. The voice data is forwarded as UDP/IP packets, and the signaling data is forwarded as TCP/IP packets.

ISDN BRI lines to PSTN

The PSTN provides a cost-effective alternative to leased lines. You can use ISDN BRI lines at the Remote Office 9150 site to make local calls without involving the host PBX. You can also choose to use the ISDN BRI lines instead of the IP network to route calls through the host PBX.

To use ISDN BRI lines, you must install trunk interface modules. The Remote Office 9150 unit can support up to four U or S/T ISDN BRI trunk interface modules. (See “Add-on modules description” on page 17.)

Quality of Service transitioning technology

If both the IP network and ISDN BRI lines are used, you can use the QoS transitioning technology to reroute calls from the IP network to the circuitswitched network when the QoS on the IP network degrades. When the QoS returns to normal, the QoS transitioning technology automatically moves the calls back to the IP network.

The Remote Office 9150 unit monitors the QoS on the IP network. If the QoS falls below preprogrammed acceptable thresholds, calls are dynamically and transparently switched to the ISDN BRI lines. See “Quality of Service transitioning technology” on page 45 for additional details.

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Remote Office 9150 description Standard 1.0

Analog port for fax machines

The Remote Office 9150 unit has one analog port that you can use as a fax connection. See “Fax support” on page 59 for more detailed information.

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March 2000 Remote Office 9150 description

How the Remote Office 9150 unit works

Introduction

There are two major components to the Remote Office 9150 product:

the Remote Office 9150 unit located in your office

■

the MIG RLC located on the Meridian 1 PBX at the host site

■

These two components, along with the connection options described on page 19, extend the host PBX services to users in your office.

Network diagram

The following diagram shows a MIG RLC and Remote Office 9150 network.

Remote site 1: Branch office

Up to 32 digital telephones Fax machine

Remote Office 9150

POWER

ETH

ERNET

R X

O L

1 L 1

DULE

2 L 1

L 2

43 L 1

V.35 STATUS

L 2

T X

Ethernet

Central office

Corporate office

Meridian 1 PBX trunks (ISDN BRI)

ISDN PRI

Public

Corporate

WAN

Telephone

Network

Meridian Internet

Ethernet

Gateway Reach Line Card

G101391

Installation and Administration Guide 21

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Remote Office 9150 description Standard 1.0

Outgoing call process

To place outgoing calls, users can either pick up the handset on the telephone or press a line appearance key. There are two types of line appearance keys:

host call appearance key

■

Use this key to make a call through the host PBX. local call appearance keys

■

Use these keys to make calls to other stations in your office, or to make and receive calls through the local PSTN. You can define up to two local call appearance keys on each digital telephone.

For a detailed description of the outgoing call process, see the sample illustrations beginning on page 24.

Incoming call process

When a user places a call through the host PBX to a user at the Remote Office 9150 site, a connection is made from the MIG RLC to the Remote Office 9150 unit and the host PBX completes the call normally. If a connection cannot be established, then the call rings until it is forwarded to voice mail by the host PBX. See Chapter 6, “Using Remote Office 9150 stations,” for a more detailed description of the incoming call process.

When someone places a call through the PSTN to a user at the Remote Office 9150 site, a connection is made from the central office to the Remote Office 9150 unit. The number that outside callers dial is the number assigned by the ISDN service provider to the ISDN BRI B-channel on which the incoming call is received.

If the incoming local call is not answered, the call is forwarded to one of the following:

to the same voice mail provided by the host PBX

■

To accomplish this, the station must be configured with both local and remote calling capability. The host PBX voice mail service is not available for stations that are defined as local only.

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March 2000 Remote Office 9150 description

to another extension in the same office

■

To accomplish this, one of the local feature keys on the phoneset must be defined as Call Forward with the DN of the station to which calls should be forwarded.

Host controlled call mode

When a user places a call to someone at the host site, or when someone from the host site calls the Remote Office 9150 site, the call is in host-controlled call mode. Calls in host-controlled mode are routed through the host PBX. See the sample illustrations on pages 24 and 26.

Local-controlled call mode

When a user places a call from a local call appearance key, or the call is to another telephone at the Remote Office 9150 site, the call is in local-controlled mode. Calls that are initiated from the local call appearance key are routed through the local PSTN. Calls to other extensions in the Remote Office 9150 site are routed only through the Remote Office 9150 unit.

The host PBX is not involved in local-controlled mode calls. See the sample illustration on page 28.

Quality of Service transitioning technology

If the QoS on the IP network falls below a predefined threshold, you can configure the Remote Office 9150 unit to automatically route voice traffic away from the IP network connection to the circuit-switched connection. See “Quality of Service transitioning technology” on page 45 for a detailed description.

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Call scenario 1: host-controlled—internal corporate call

The following diagram shows how a call is routed when making a host-controlled call to the corporate office.

Host-controlled call (corporate internal call)

Branch office (Chicago)

Ethernet network

Host location (Los Angeles)

Meridian 1 PBX

Up to 32 digital telephones

User 1 User 2 User 3

Remote Office 9150

POW

ETHERNET

T X

R X

C O

L L

MODULE

L 2

2 L 1

L 2

43 L 1

V.35 STA

L 2

TUS

R X

MIG RLC

Central office trunks (ISDN BRI)

PSTN

ISDN PRI

Host stations

Voice over IP call Circuit-switched network call

G101392

The network that is used to route the host-controlled call is transparent to the user, and the dialing requirement is the same for both. Calls work the same way in reverse, from host PBX site to the Remote Office 9150 site.

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Voice over IP network call

User 1 presses the host call appearance key.

Result:

User 1 hears a dial tone. This indicates that the connection to the

MIG RLC over the IP network was successful.

User 1 dials a telephone number (such as the extension number of host station 1).

Result:

The dialed digits are sent by the Remote Office 9150 unit as packets across the Ethernet network. The MIG RLC converts the packets to the format required by the PBX. The PBX then converts the data to voice and routes the call to host station 1.

Circuit-switched network call

User 3 presses the host call appearance key.

Result:

MIG RLC over the circuit-switched network was successful.

User 3 dials the telephone number (such as the extension number of host station 3).

Result:

station 3.

User 3 hears a dial tone. This indicates that the connection to the

Dialed digits are sent across the PSTN through the PBX to host

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Call scenario 2: host-controlled—external corporate call

The following diagram shows how a call is routed when making a host-controlled call to a party outside the organization.

Host-controlled call (corporate external call)

Branch office (Chicago)

Ethernet network

Host location (Los Angeles)

Meridian 1 PBX

1 3

Up to 32 digital telephones

User 1 User 2 User 3

Remote Office 9150

POWER

E THERNET

T X

C O

L L

1 L 1

MODULE

L 2

2 L 1

L 1

L 2

43 L 1

V.35 STATUS

L 2

T X

R X

MIG RLC

Voice over IP call Circuit-switched

network call

Central office trunks (ISDN BRI)

ISDN PRI

PSTN

Called party is local pizza parlor (Chicago)

G101393

The network used to route the call is transparent to the user, and the dialing requirement is the same for both. Calls work the same way in reverse, through the host PBX site to the Remote Office 9150 site.

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Voice over IP network call

User 1 presses the host call appearance key.

Result:

User 1 hears a dial tone. This indicates that the connection to the

MIG RLC over the IP network was successful.

User 1 dials the external telephone number.

Result:

Circuit-switched network call

User 3 presses the host call appearance key.

Result:

MIG RLC over the circuit-switched network was successful.

User 3 dials the external telephone number.

Result:

the host PBX to the called party.

User 3 hears a dial tone. This indicates that the connection to the

Dialed digits are sent across ISDN BRI through the PSTN, through

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Call scenario 3: local-controlled mode—local call

The following diagram shows how a call is routed when making a call within your local area.

Local-controlled call

Branch office (Chicago)

Ethernet network

Host location (Los Angeles)

Meridian 1 PBX

1 3

Up to 32 digital telephones

User 1 User 2 User 3

Remote Office 9150

POW

ETHERNET

T X

R X

C O

L L

1 L 1

MODULE

L 2

2 L 1

L 2

V.35 STATUS

L 2

R X

MIG RLC

Circuit-switched network call

Central office trunks (ISDN BRI)

PSTN

ISDN PRI

Called party is local pizza parlor (Chicago)

G101394

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Local call

User 1 presses the local call appearance key and hears a dial tone from the Remote Office 9150 unit.

User 1 then dials a trunk access code (such as #61) and hears a dial tone from the Central Office (PSTN).

Note:

If all trunks are busy and unavailable, then User 1 hears a fast busy

signal.

User 1 dials the telephone number (the pizza parlor in this example). The dialed digits are sent across the ISDN BRI connection through the PSTN to the called party.

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Section B: Feature description

In this section

Overview 32 System security 36 Trunking, connection types, and call timers 38 Telephones 41 Voice over IP features 44 Port management 50 Station priority 52 Connection bandwidth 54 Local calling 55 Online/offline table 57 Other supported features 59 Administration software 61

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Overview

Introduction

This section provides a brief description of each Remote Office 9150 feature.

System security

The Remote Office 9150 unit supports three security levels—no security, calling line identification (CLID), and security identifier. The security levels control access from the Remote Office 9150 unit to the MIG RLC on the host PBX.

Trunking

The Remote Office 9150 unit automatically allocates trunk bandwidth as it is needed. For example, as calls are initiated and bandwidth requirements increase, additional trunk connections are established. Likewise, as calls terminate and bandwidth requirements drop, idle trunks are shut down.

Telephones

The Remote Office 9150 unit supports Meridian digital telephone, telephone modules, and standard calling features.

Voice over IP features

You can configure the MIG RLC port to which the Remote Office 9150 unit is assigned to automatically move calls from the IP network to the circuit-switched network when the voice QoS falls below a predetermined threshold. When QoS returns to normal, calls are moved back to the IP network.

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Call on demand versus permanent connections

The ISDN connection between the MIG RLC and Remote Office 9150 unit can be a permanent or call on demand connection. The connection type is defined on the MIG RLC port to which the Remote Office 9150 unit is assigned.

A permanent connection means the ISDN connection to the host PBX always remains open. A call on demand connection means the ISDN connection opens only when a connection with the host PBX is required.

If the connection is defined as call on demand, minimum call duration and idle timers can be configured on the MIG RLC. This helps to reduce ISDN BRI charges.

Port management

Each port on the MIG RLC can be defined as one of the following port types:

single-user port

■

Each single-user port supports one remote station at the Remote Office 9150 site.

multi-user voice port

■

Up to eight persons can share the same MIG RLC port, but not at the same time. This port type is especially useful for employees who are working in mutually exclusive shifts. All stations that use this type of port respond to the same DN and have identical phoneset configurations.

a port in a dynamic port pool

■

This is similar to a multi-user port except that the persons who share ports in a dynamic pool are assigned to the next available port in the MIG RLC port pool. There is no correlation between the station and the port on the MIG RLC.

This feature is especially useful in free-seated ACD environments where agents log on to the host PBX using their agent IDs.

The MIG RLC administrator can tell you which port types are used by your office.

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Station priority

One of the following priority levels can be assigned to each station:

high

■

normal

■

circuit only

■

IP only

■

The priority level is defined on the MIG RLC port to which the station is assigned. For more details, see “Station priority” on page 52.

Local calling

The Remote Office 9150 unit allows you to place calls to other extensions within your office, or to telephones in your local community. This is accomplished through the use of up to two local call appearance keys.

Note: If a user initiates the call from the host call appearance key, the station-to-station call requires transmission of signaling data through the host PBX.

Online/offline table

The online/offline table is configured on the MIG RLC and allows you to schedule times

when the Remote Office 9150 unit’s ISDN BRI connection to the host PBX

■

can be active Note: When the Remote Office 9150 unit is in offline mode, users cannot

make or receive calls through the host PBX over the IP or circuit-switched network.

when all telephones in your office can use only the local PSTN service

■

This allows you to ensure that costly ISDN BRI telephone calls through the host PBX are disabled after business hours.

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Fax support

The Remote Office 9150 unit contains a full-featured analog port that can send and receive faxes.

Emergency service number

If you are using the circuit-switched network to route calls, you can program an emergency service number (such as 911) on the Remote Office 9150 unit. This allows the emergency service call to be routed through the local PSTN instead of through the host PBX, regardless of which call appearance key (host or local) was used to initiate the call.

Note: If you are using only the IP network to route calls, you should make emergency service calls on a telephone that is directly connected to a PSTN line. If you make an emergency service call from a station that is connected to the Remote Office 9150 unit, the call is routed through the host PBX, which could be in a different city.

Administrative tools

The Configuration Wizard and Configuration Manager software allow you to perform configuration. Configuration Manager also allows you to perform a variety of administration tasks on the Remote Office 9150 unit, such as

changing the administration password

■

viewing the system logs and statistics

■

performing upgrades, backups, and restores

■

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System security

Introduction

This section describes the security levels that are supported for controlling access from the Remote Office 9150 unit to the MIG RLC on the host PBX.

No security

When no security measures are used, the MIG RLC accepts all incoming calls from the Remote Office 9150 site.

Use this level with caution as it can be prone to unauthorized use. For example, a user in your site could accidentally, or intentionally, enter a trunk number for another site and place long distance phone calls through this connection.

Calling Line Identification

When Calling Line Identification (CLID) is used, and the circuit-switched network is used to route the call, the MIG RLC identifies the Remote Office 9150 unit’s CLID. If the CLID matches the remote number configured on the port assigned to the Remote Office 9150 unit, access is granted. If the incoming call’s CLID does not match, access is denied.

Caller ID authentication cannot be performed over the IP network.

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Security identifier

You can use security identifier authentication over the IP or circuit-switched network. When security identifier is used, the Remote Office 9150 unit sends its security identifier (password) for each connection request. The MIG RLC compares the identifier configured on the MIG RLC port to which the Remote Office 9150 unit is assigned. If the identifiers match, access is granted.

If the identifiers do not match, an event is recorded in the Remote Office 9150 unit system log, which can be viewed in Configuration Manager. The telephone that was used to make the call displays a message indicating that communications with the host PBX are down.

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Trunking, connection types, and call timers

Introduction

This section describes what is supported on the circuit-switched network.

Trunk connections

The following digital trunk connections are supported:

ISDN BRI from the Remote Office 9150 unit to the PSTN

■

ISDN PRI from the PSTN to the MIG RLC at the host site

■

Bandwidth allocation

The MIG RLC automatically allocates trunk bandwidth to the Remote Office 9150 connection as it is needed. For example, as calls are initiated and bandwidth requirements increase, additional trunk connections are established. Likewise, as calls terminate and bandwidth requirements drop, idle trunks are shut down.

Connection types

The Remote Office 9150 connection to the MIG RLC can be defined on the MIG RLC as a permanent or demand connection. A permanent connection means that the ISDN connection to the host PBX always remains open. A demand connection means that the ISDN connection opens only when a connection with the host PBX is required.

If the connection is defined as demand, then you can configure minimum call duration and idle timers on the MIG RLC to help reduce call charges.

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Minimum call duration timer

Most ISDN tariffs specify a minimum length of time for which you are charged when you open the line, regardless of the call duration. This is the same as the minimum call charges listed on long distance telephone bills.

The minimum call duration timer is used in circuit-switched mode only and specifies the minimum length of time that each circuit-switched call to the host PBX remains open, regardless of telephone activity or inactivity. The timer should be configured on the MIG RLC to drop the connection just before an additional charge period is incurred. For example, if the timer is set to 59 seconds and your call lasts only 20 seconds, the ISDN connection drops when the timer reaches 59 seconds.

If another call is made to the host PBX before the timer expires, the timer is reset. The timer tracks the last established call.

Idle timer

The idle timer identifies the maximum length of time during which an ISDN connection should remain idle before it can be closed. Idle means that a voice connection does not exist, and buttons are not being pressed on digital telephones.

For example, if the idle timer is set on the MIG RLC to 60 seconds, the ISDN call remains open for 60 seconds after you hang up.

Note: If you or someone else dials another number before 60 seconds have passed, another ISDN connection is not opened.

How the timers work to control ISDN costs

The minimum call duration and idle timers work together to control ISDN charges. The following examples describe what happens when the minimum call duration timer is set to 59 seconds and the idle timer is set to 60 seconds.

Example 1

If the call lasts for 20 seconds and no other calls are made, the ISDN connection drops when the minimum call duration timer reaches 59 seconds. The minimum call duration timer expires before the idle timer.

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Example 2

If the call lasts for 65 seconds and no other calls are made, the ISDN connection drops after another 60 seconds has passed without activity. Since the ISDN call exceeded 59 seconds, the minimum call duration timer no longer applies. The idle timer is used, in this case, to prevent further ISDN charges.

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Telephones

Introduction

This section lists the telephones, features, and modules supported by the Remote Office 9150 unit.

Supported digital telephones

The following Meridian digital telephones are supported:

M2008D M2008HFD M2216D M2616D

M2616CT M3110 M3310 M3820

Note: The M2006 and M3901 telephones are also supported, but can be used only for local-controlled calls. These telephones do not have displays, which are required for host PBX functionality.

Supported telephone modules

The following telephone modules are supported:

add-on modules (to add more keys)

■

application modules that provide more functionality

■

Meridian Communication Adapters (MCA)

■

Analog Telephone Adapters (ATA)

■

M3902 M3903 M3904 M3905

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Supported telephone features

All features provided by the host PBX are supported for host-controlled calls. The following are some examples:

Hold

■

Call Waiting

■

Transfer

■

Conference

■

Call Forward

■

ACD features

■

Paging

■

See Chapter 6, “Using Remote Office 9150 stations,” for a detailed description of the above features.

Computer telephony integration applications

There are two types of computer telephony integration (CTI) applications:

first-party CTI applications that use the Symposium Desktop TAPI Service

■

Provider third-party CTI applications that use Symposium TAPI Service Provider for

■

Both types can be used with the Remote Office 9150 unit.

TAPI Type Supported CTI Application

Symposium Desktop TAPI Service Provider 1.6

Symposium TAPI Server Provider for Meridian 1 Release 2.1

42 Remote Office 9150

Symposium FastView 1.6

■

Symposium FastCall 1.6

■

Symposium Call Manager 5.0

■

other TAPI-compliant applications

■

Symposium Agent 1.1

■

Symposium Call Manager 5.0

■

other Symposium Partner products

■

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You can use first-party CTI applications with the Remote Office 9150 unit if

your PC is equipped with a Symposium Communicator card version 1.2

■

with software version 2.0 your digital telephone is equipped with a Meridian Communications

■

Adaptor (MCA)

Note: The Symposium Communicator Card is not available in all countries. Check with your Nortel Networks distributor for availability.

Automatic Call Distribution (ACD) applications

The Remote Office 9150 unit supports all Nortel Networks ACD applications.

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Voice over IP features

Introduction

You can configure the Remote Office 9150 unit to use the following Voice over IP features:

Convert analog voice into digital data for transmission as voice packets

■

over the network for calls to or from the fax machine or other analog device that is connected to the analog port on Telco 1.

Automatically switch from the IP network to the circuit-switched network

■

when the voice QoS falls below a predetermined threshold, and back to the IP network when the QoS returns to normal.

Packetized voice

DSPs located in the Remote Office 9150 unit convert voice into digital data packets and, if compression is used, compresses them. The data is constructed as UDP/IP voice packets for transmission over the IP network.

When voice packets are compressed, they consume less bandwidth, leaving more bandwidth for data or other voice or fax communications. The following algorithms are supported:

G.711: Packets are transmitted at 64 Kbps (that is, they are not

■

compressed). G.726: Packets are compressed and transmitted at 32 Kbps.

■

G.729A: Packets are compressed and transmitted at 8 Kbps.

■

G.729A is the default algorithm on both the MIG RLC and the Remote Office 9150 unit.

In addition to voice compression, the Remote Office 9150 unit supports the following additional packetized voice features:

A voice jitter attenuation buffer removes the variable delays from the voice

■

packets sent across the IP network, thus avoiding awkward-sounding speech.

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Packet loss handling techniques accommodate missing packets or packets

■

received too late to be processed. Silence suppression prevents packet transmission during periods when

■

there is no voice data present. Comfort noise is inserted to assure the user that the line is still active.

Silence is determined when the difference between the adaptable noise floor and the detected signal is less than 9 dB. To prevent clipping, silence must be present for a minimum of 250 milliseconds.

Quality of Service transitioning technology

Communications between the Remote Office 9150 unit in your office and the host PBX take place across the IP network using a 10BaseT Ethernet interface. You can configure the Remote Office 9150 unit to switch automatically from the IP network to the circuit-switched network when the voice QoS falls below a predetermined threshold.

Both the MIG RLC and the Remote Office 9150 unit monitor the IP network’s QoS constantly. If the IP network QoS degrades, causing poor voice quality, the Remote Office 9150 unit moves, or transitions, the call to the circuit-switched network. When the QoS returns to normal, the Remote Office 9150 unit transitions the call back to the IP network.

For detailed instructions on configuring the thresholds, refer to the Meridian Internet Gateway Reach Line Card Installation and Administration Guide (NTP 555-8421-210). For guidelines on evaluating and adjusting the QoS on your IP network, see Appendix A, “Network engineering guidelines.”

How the Quality of Service transitioning technology works

The illustration on the next page shows how the QoS transitioning technology works.

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QoS Transition and Recovery

Threshold

Transition to

circuit-switched

network (PSTN)

Signal

quality

Y X

Z Q

Duration

Signal

Degrade

Threshold (in terms of packet loss and decay) X Y Duration in seconds Z Q

Transition back to IP

Signal

Recovery

The following table describe the threshold and duration settings shown in the diagram. These settings are configured on the MIG RLC port to which the Remote Office 9150 unit is assigned.

network

G101427

Setting Description

Y Represents the threshold representing acceptable signal quality

on the IP network. When signal quality is good, calls continue to be processed on the IP network.

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Setting Description

X Represents the threshold where signal quality on the IP network

has degraded enough to warrant call transitions to the circuitswitched network.

Z Represents the amount of time that signal quality must be lower

than the X threshold before calls transition to the circuitswitched network.

Q Represents the amount of time that signal quality must be higher

than the Y threshold before calls transition back to the IP network.

1. When the IP QoS falls below threshold X, the system waits for duration Z to determine if the QoS will return to normal.

2. If the QoS did not return to normal before duration Z passed, the Remote Office 9150 unit establishes a PSTN network connection to the MIG RLC on the host PBX.

The Remote Office 9150 unit can make multiple PSTN connections (one every 30 seconds) depending on the bandwidth required to service all currently active calls.

Voice quality can degrade while the dialup PSTN network connection is being established. Affected users are notified of the transition by a message sent to their telephone displays. Likewise, when service is restored to the IP network, users are notified by a message sent to their telephone displays.

3. Once the PSTN connection is established, calls are routed, 64 Kbps at a time, from the IP network connection to the PSTN connection. The system waits several seconds before moving the next 64 Kbps to determine if the IP connection has become more stable.

As many calls as possible (to a maximum of 64 Kbps per B-channel) are moved from the IP connection to the PSTN trunk connection. High priority users are always moved first.

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Transitions are transparent to the users and can take place during a live call. The one exception is in the event of a complete network failure.

Note: A slight degradation in voice quality can occur during the transition.

4. An IP test is run to determine if the QoS has been restored on the IP network. See “Offline IP network measurements” on page 49.

5. When the IP QoS exceeds the Y threshold, the system waits for duration Q to ensure that the QoS is stable enough to resume service on the IP network.

6. If the QoS continues to exceed the Y threshold, all active calls are moved back to the IP network and all new calls are placed over the IP network.

Quality of Service traffic measurements

As each voice packet is sent over the IP network, the Remote Office 9150 unit monitors the following QoS parameters:

average packet delay

■

The delay is calculated using the following statistics gathered from the Remote Office 9150 unit’s voice jitter attenuation buffer:

minimum packet holding time in the jitter buffer

■

maximum packet holding time in the jitter buffer

■

peak holding time in the jitter buffer

■

time-stamp values in the packet header

■

By accumulating these statistics over time, the Remote Office 9150 unit can calculate an average packet delay value through the IP network. As the system detects an increase in the average packet delay, it references the signal degrade threshold to determine when the transition to the PSTN connection should be made.

See Chapter 7, “Administration” for a detailed description of statistics. lost packets

■

Lost packet statistics are calculated by accumulating the following packet header and voice decoder statistics:

voice decoder underrun

■

voice decoder overrun

■

out-of-sequence packet reception

■

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Offline IP network measurements

Once the Remote Office 9150 unit has reverted to using its PSTN connections, it must continually monitor the IP network to determine an appropriate time to restore voice traffic to the IP network as follows:

1. Pseudo voice traffic is placed on the IP network by both the MIG RLC and the Remote Office 9150 unit.

This traffic is generated with a maximum bandwidth of no more than 16 Kbps and is sent in short bursts at a higher bit rate to approximate live voice traffic.

2. Both the MIG RLC and Remote Office 9150 unit gather statistics based on the pseudo traffic to determine the congestion levels on the network. They use packet time stamps and sequence numbers to monitor the following parameters:

average end-to-end delay

■

average round-trip delay

■

average packet-to-packet jitter

■

average packet loss

■

3. When the parameters listed in step 2 fall within the predetermined threshold, the voice traffic is restored to the IP network.

When restoring the connection back to the IP network, the system adds hysteresis to reduce the noise level during the transition. Hysteresis

prevents thrashing between the circuit-switched and IP networks

■

ensures that the voice QoS exists on the IP network for a predefined

■

amount of time

Log reports and statistics

Configuration Manager provides a statistics log that identifies the number of QoS transitions (see “Caller Information Statistics screen” on page 324).

See Chapter 7, “Administration” for a detailed description of log and statistic reports.

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Port management

Introduction

You can assign Remote Office 9150 stations to one of the following types of MIG RLC ports:

single-user ports

■

multi-user voice ports

■

dynamic port pool

■

Port types are assigned on the MIG RLC. Refer to the Meridian Internet Gateway Reach Line Card Installation and Administration Guide (NTP 555-8421-210) for detailed instructions.

Single-user ports

Each port that is defined as a single-user (dedicated) port on the MIG RLC supports one Remote Office 9150 station.

Multi-user ports

Ports that are defined on the MIG RLC as multi-user ports allow multiple stations on different Remote Office 9150 units to time-share a single port on the host PBX.

Up to eight persons can share the same MIG RLC port, but not at the same time. All stations that use this type of port must respond to the same DN and have identical phoneset configurations. This port type is especially useful for employees who are working in mutually exclusive shifts.

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Dynamic port pool

Dynamic port pooling is similar to a multi-user port except that the persons who share ports in a dynamic pool are assigned to the next available port in the MIG RLC port pool. There is no correlation between the station and the port on the MIG RLC.

This feature is especially useful in free-seated ACD environments where agents log on to the host PBX using their agent IDs.

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Station priority

Introduction

You can define a MIG RLC port to which a station is assigned as normal priority, high priority, circuit-switched only, or IP only.

Normal priority

When both the IP and circuit-switched networks are used to route calls, calls to and from the station are routed primarily over the IP network (if the IP network is used to route calls). Calls transition between the IP and circuit-switched networks whenever voice QoS levels change. (The voice QoS levels are defined on the Quality of Service screen on the MIG RLC for your Remote Office 9150 unit.)

High priority

When both the IP and circuit-switched networks are used to route calls, calls to and from the station are routed primarily over the IP network. Calls transition between the IP and circuit-switched networks whenever voice QoS levels change. (The voice QoS levels are defined on the Quality of Service screen on the MIG RLC for your Remote Office 9150 unit.)

When the priority reservation setting is also defined on the connection between the MIG RLC and the Remote Office 9150 unit, the following benefits are provided:

If allowed to use the IP network to process calls (this is transparent to the

■

user), an active call on that station is always one of the first to be transitioned to PSTN trunks when Voice over IP QoS has degraded. (This transition is accomplished using the QoS transitioning technology.)

Call blocking is reduced because bandwidth is always available to these

■

stations. Note: If the reserved bandwidth is being used by other high priority

stations, then new calls are processed using unreserved bandwidth.

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The number of stations that can be configured as high priority depends on the amount of available bandwidth. Ensure that enough bandwidth is available to process calls on normal priority stations.

IP only

Calls to and from the station are routed over the IP network only (if the IP network is used to route calls). QoS transition is not available for stations that are defined as IP only.

Circuit only

Calls to and from the station are routed over the circuit-switched network only (if the circuit-switched network is used to route calls). Circuit only stations never experience voice QoS degradation.

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Connection bandwidth

Introduction

On the connection between the MIG RLC and the Remote Office 9150 unit, you can configure the following:

when to open additional B-channels (referred to as extra bandwidth)

■

how much bandwidth to reserve for high priority stations (referred to as

■

priority reserved bandwidth)

For instructions, refer to “Configuring ports” in the Meridian Internet Gateway Reach Line Card Installation and Administration Guide (NTP 555-8421-210).

Extra bandwidth

When available bandwidth is no longer sufficient to process active calls, additional B-channels are opened according to the extra bandwidth setting. For example, if you configure the extra bandwidth setting as 16 Kbps, another B-channel opens when existing bandwidth is reduced to 16 Kbps or less.

Priority reserved bandwidth

The priority reserved bandwidth setting defines how much bandwidth to reserve for high priority stations. The reserved bandwidth cannot be used by stations configured as normal, IP only, or circuit-only priority. High priority stations consume priority reserved bandwidth before consuming unreserved bandwidth.

For example, if you configure the priority reserved setting as 16 Kbps, then only high priority stations can use this reserved bandwidth. When the reserved bandwidth is being used for active high priority calls, additional calls from high priority stations are processed using unreserved bandwidth. If no bandwidth is available, calls to or from high priority stations are blocked until bandwidth becomes available.

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Local calling

Introduction

The Remote Office 9150 unit allows you to place calls to other extensions within your office or to telephones in your local community. This is accomplished through the use of up to two local call appearance keys. See Chapter 6, “Using Remote Office 9150 stations,” for a detailed description of the local call appearance keys.

Local extension calling

When you place a call to another telephone in your office using the local call appearance key, it is handled by the Remote Office 9150 unit, not the host PBX.

Note: If the call is initiated from the host call appearance key, then the station-to-station call requires transmission of signaling data through the host PBX.

Local calls through PSTN

The Remote Office 9150 unit allows you to make outgoing and receive incoming PSTN calls over the ISDN BRI connection.

Make outbound calls by pressing the local call appearance key, and then

■

dialing the trunk access code and the telephone number. Answer incoming calls by pressing the flashing local call appearance key.

■

See Chapter 6, “Using Remote Office 9150 stations,” for a more detailed description of local calling.

Call restrictions

To prevent outgoing calls to certain types of numbers (for example, 1-976), you can disable outgoing calls to specific digit sequences.

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Telephone features that are supported

The following Meridian telephone features are supported for local-controlled calls:

Paging

■

Call Waiting

■

Hold for calls that appear on local call appearance keys

■

Call Transfer (blind and announced) for station-to-station calls only

■

Release

■

Hands-Free

■

calling line identification (CLID) and calling party name display (CPND)

■

Telephone features that are not supported

The Conference and Call Forward features require a host PBX connection, and, therefore are not supported in local-controlled mode.

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Online/offline table

Introduction

The online/offline table is configured on the MIG RLC and allows you to schedule times

when the ISDN BRI connection to the host PBX is made available to the

■

Remote Office 9150 site Note: When the Remote Office 9150 unit is in offline mode, users cannot

make or receive calls through the host PBX over the IP or circuit-switched network.

when all telephones at the Remote Office 9150 site revert to normal

■

telephone service

This allows you to ensure that unwanted ISDN BRI telephone calls through the host PBX are disabled after business hours.

How the table works

You can define up to eight entries per day, every day of the week, for each remote site. You can define each entry as online, offline, or undefined for each time period entered.

Users at the Remote Office 9150 site can override the settings of the online/ offline table, should the table attempt to suspend access to the host PBX in the middle of a business call. Each user station at the remote site is alerted by a buzz and a display message at 30, 20, and 10 seconds before the connection is terminated. To override connection termination, the user must enter the online SPRE code on the telephone.

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Configuration

The online/offline table is configured for each remote site on the MIG RLC. Refer to the Meridian Internet Gateway Reach Line Card Installation and Administration Guide (NTP 555-8421-210) for configuration information.

For a description of how to go online or offline at the Remote Office 9150 site, see Chapter 6, “Using Remote Office 9150 stations.”

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Other supported features

Introduction

This section describes the following additional features supported by the Remote Office 9150 unit:

fax support

■

emergency service number

■

Fax support

The Remote Office 9150 unit contains one analog port that can be used to send and receive faxes. Faxes can be sent and received in both host- and localcontrolled call modes over the IP or circuit-switched network. Faxes are sent uncompressed (that is, 64 Kbps of bandwidth is required).

To support faxing through the host PBX, the fax port on the Remote Office 9150 unit must be associated with a port on the MIG RLC that is configured on the host PBX with data capability.

Emergency service number

If your community has implemented an emergency service number (such as 911) to call the police, fire department, or ambulance, you can configure that number on the Remote Office 9150 unit. This allows users in your office to dial the emergency number and be connected directly to the local emergency dispatch center through the circuit-switched network. The call is automatically routed through the local PSTN without having to dial a local trunk access code.

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When you configure the local emergency service number on the Remote Office 9150 unit, you also prevent the call from being automatically routed through the host PBX, which could be in a different city. An emergency call that is routed through the host PBX can result in emergency support being dispatched to the wrong location.

ATTENTION

If you are using only the IP network to route calls, you should make emergency service calls on a telephone that is directly connected to a PSTN line. If you make an emergency service call from a station that is connected to the Remote Office 9150 unit, the call is routed through the host PBX, which could be in a different city.

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Administration software

Introduction

Configuration and administration of the Remote Office 9150 unit is performed with the Configuration Manager software, a Windows-based application that is installed on your PC.

The software is provided on the Remote Office Product CD-ROM. You can also obtain it from the Nortel Networks web site.

Administration PC connection options

You can connect the administration PC to the Remote Office 9150 unit through the following:

an RS-232 connection to the administration PC’s serial port

■

a 10BaseT Ethernet interface connection

■

What you can do with Configuration Manager

Configuration Manager allows you to configure the Remote Office 9150 unit. Configuration Manager also provides the Configuration Wizard, which you use for first-time configuration. The Configuration Wizard prompts you for the minimum information that is needed to get the Remote Office 9150 unit communicating with the MIG RLC on the host PBX.

After the initial configuration is completed, use Configuration Manager to administer the Remote Office 9150 unit. Administration tasks include the following:

viewing the system status

■

performing upgrades, backups, or restores

■

making configuration changes

■

changing the administration password

■

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Command line interface

When the administration PC is connected to the Remote Office 9150 unit through the serial port, you can view the command line interface using an application such as Telnet or HyperTerminal. However, the command line interface is not documented in this guide. Configuration Manager is the supported tool for administering the Remote Office 9150 unit over both the serial port and Ethernet connections.

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Chapter 2

Planning for installation

In this chapter

Overview 64 Installation checklist 67 Physical environment 71 Administration PC 76 Network considerations 81 Managing trunk connections 85 Station configuration 88 Security 92 Planning for future growth 94 Deployment options 97 Planning the configuration 101

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Overview

Introduction

This chapter describes what you must consider when planning to add the Remote Office 9150 product to your IP and telephone networks.

Installation checklist

The installation checklist in this chapter provides a quick reference overview of the tasks required to complete the Remote Office 9150 unit installation and configuration.

Physical environment

Important considerations about the physical environment in which the Remote Office 9150 unit will be installed include

space requirements and temperature ranges

■

mounting options

■

cables that are supplied, and cables you must supply yourself

■

Administration PC

The administration software is Windows-based and is installed on a PC. This section describes ways that you can connect an administration PC to the Remote Office 9150 unit. It also describes the hardware and software requirements for using the administration software.

Network considerations

The Remote Office 9150 unit communicates through both the IP and the telecommunications networks using a Meridian 1 PBX.

To use the Remote Office 9150 unit in these networks, you must consider the issues described in this chapter.

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Trunk management

You can manage connections to the host PBX in several ways:

Put the Remote Office 9150 unit into offline mode so that it cannot receive

■

or make calls through the host PBX. Define a trunk connection as permanent or on-demand.

■

Define call duration and idle timers, if the trunk connection is defined as

■

on-demand. Define bandwidth allocation settings.

■

Use the QoS transitioning technology.

■

Station configuration

You can configure stations with the ability to make local-controlled calls, hostcontrolled calls, or both local- and host-controlled calls. If local-controlled call ability is given, specific features can be enabled or disabled.

Security

The Meridian Internet Gateway Reach Line Card (MIG RLC) and Remote Office 9150 unit offer the following types of security:

security level and, if required, security identifier to prevent toll fraud on the

■

host PBX two levels of administration passwords to secure node configurations

■

The Remote Office 9150 unit does not provide for IP network security. If security on the data network is an issue, you must implement security on the IP network devices.

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Deployment options

The MIG RLC on the host PBX and Remote Office 9150 unit can be installed and configured to initially use

only the IP network (Voice over IP)

■

only the circuit-switched network (for example, ISDN BRI trunks)

■

both networks (which provides the ability to perform QoS transitions)

■

If you choose not to use both networks initially, this chapter suggests how you can gradually phase in Voice over IP and QoS transitioning functionality.

Gathering the configuration information

To help you plan the configuration of the Remote Office 9150 unit, you can use the Remote Office 9150 forms shown in Appendix B, “Planning forms.”

Future growth

The Remote Office 9150 unit ships with no DSP application or trunk interface modules installed, and provides support for up to

32 stations

■

Note: You must assign all 32 stations to the same MIG RLC. eight simultaneous voice calls over the IP network

■

You may or may not have purchased DSP application or trunk interface modules to expand its voice processing capability or to use the circuit-switched network.

The Remote Office 9150 unit can change or grow along with your telecommunication needs. This chapter provides planning information for accommodating those needs.

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Remote Office 9150

Installation checklist

Page 1 of 4

Use this checklist to ensure that all installation tasks are completed.

Check Task For details, see

Review the Release Notes for last-minute

❒

product updates.

Ensure you have the latest firmware and

❒

software.

You can route calls over the IP network, the

❒

circuit-switched network, or both. Determine, at a high level, what you must do to implement these call routing methods.

If you want to use the IP network to route

❒

calls, evaluate the IP network to determine if the network infrastructure can support voice traffic.

If you want to use the circuit-switched

❒

network to route calls, order trunks from the central office to the Remote Office 9150 unit site.

Note: The Remote Office 9150 unit supports ISDN BRI trunks (S/T or U interface).

Remote Office and MIG RLC Release Notes

(NTP 555-8421-102).

Remote Office and MIG RLC Release Notes

(NTP 555-8421-102)

“Deployment options” on page

97.

■

your data network administrator

■

Appendix A, “Network engineering guidelines”

“ISDN BRI information” on page

102.

Obtain the cables that you need to establish

❒

the network connections.

Decide on the administration PC setup. “Administration PC” on page 76.

❒

Installation and Administration Guide 67

“Cables you must supply yourself” on page 74.

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Remote Office 9150 unit

Installation checklist

Page 2 of 4

Check Task For details, see

Gather the configuration information

❒

(network addresses, connection numbers, online/offline schedule, QoS thresholds, and so on).

Install DSP application and trunk interface

❒

modules into the Remote Office 9150 unit.

Choose a suitable location for the Remote

❒

Office 9150 unit.

Install the Remote Office 9150 unit in the

❒

chosen location.

Connect the Remote Office 9150 unit to the

❒

power source, administration PC, and network.

Power up the Remote Office 9150 unit and

❒

observe LED behavior. The Status LED remains lit when the power-

up cycle completes successfully.

■

“Deployment options” on page 97

■

Appendix B, “Planning forms”

“Installing a trunk interface or DSP application module” on page 116.

“Choosing a suitable location” on page 122.

“Mounting the Remote Office 9150 unit” on page 122.

“Connecting the Remote Office 9150 unit” on page 129.

“Powering up the Remote Office 9150 unit” on page 135.

Install the software from the product

❒

CD-ROM or the Nortel Networks web site.

Configure the IP address, subnet mask, and

❒

default gateway on the Remote Office 9150 unit.

68 Remote Office 9150

“Installing the software” on page

138.

“Using the Configuration Wizard to perform initial configuration” on page 141.

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Remote Office 9150 unit

Installation checklist

Page 3 of 4

Check Task For details, see

Configure the following items, as required,

❒

to create the communication paths between the Remote Office 9150 unit and the MIG RLC:

■

IP network: MIG RLC’s IP address

■

circuit-switched network:

■

MIG RLC’s telephone number

■

primary trunk

■

security level and, if required, security identifier

Ping the Remote Office 9150 unit and ensure

❒

that it is recognized as a device on the network.

Ensure that the Remote Office 9150 unit’s

❒

connection information is completed on the MIG RLC.

Configure user stations with appropriate

❒

calling permissions and features.

■

“Using the Configuration Wizard to perform initial configuration” on page 141

■

“Configuring the security level” on page 235

“Testing the network connections” on page 155.

the Meridian Internet Gateway

Reach Line Card Installation and Administration Guide

(NTP 555-8421-210).

“Defining stations” on page 260.

Configure ports on the MIG RLC. the Meridian Internet Gateway

❒

Reach Line Card Installation and Administration Guide

(NTP 555-8421-210).

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Remote Office 9150 unit

Installation checklist

Page 4 of 4

Check Task For details, see

Configure network devices

❒

■

so that voice traffic is not constrained or congested

■

to maximize network efficiency for Voice over IP service

Ensure that voice calls can be sent or received over the following:

■

❒ ❒

❒

IP network

■

circuit-switched network

Ensure that processing of voice and data traffic over the IP network performs as expected.

Adjust QoS transitioning settings, if

❒

required.

Ensure that calls can be made and received

❒

on each station.

Plan for administration training and

❒

technical support.

■

your data network administrator.

■

Appendix A, “Network engineering guidelines”

your data network administrator.

■

your data network administrator

■

your telecom network administrator

■

Appendix A, “Network engineering guidelines”

“Testing the network connections” on page 155.

■

Chapter 7, “Administration”

■

Chapter 8, “Troubleshooting”

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Physical environment

Introduction

This section provides the space, temperature, cabling, and mounting information you need to know before you install the Remote Office 9150 unit.

Space

Ensure that the Remote Office 9150 unit is installed in a location that is dry and provides plenty of air circulation.

The chosen location should be within cable-length distance from the following:

the administration PC (if the serial connection is used)

■

the Ethernet hub

■

trunk and telephone connection interfaces

■

The Remote Office 9150 unit can be installed up to

1230.7 meters (4000 feet) from the digital telephones

■

307.7 meters (1000 feet) from the analog device

■

It is recommended that you install the Remote Office 9150 unit in the same room where your communications equipment is installed.

Temperature and humidity

The following table describes the temperature and humidity conditions that the Remote Office 9150 unit can withstand without any performance degradation or damage.

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Specification Minimum Maximum

Normal operation

Recommended:

Temperature

■

Relative humidity

■

15°C (59°F)

■

20%

■

30°C (86°F)

■

55% (non-condensing)

■

Absolute:

Temperature

■

Relative humidity

■

10°C (50°F)

■

20%

■

45°C (113°F)

■

80% (non-condensing)

■

Short term (less than 72 hours): -40°C (-40°F) 70°C (158°F)

Rate of change Less than 1°C (33.8°F) per 3 minutes

Storage

Recommended temperature -20°C (-4°F) 60°C (140°F)

Relative humidity 5% 95% (non-condensing)

Non-condensing -40°C (-40°F) 70°C (158°F)

Temperature shock

In 3 minutes -40°C (-40°F) 25°C (77°F)

In 3 minutes 70°C (158°F) 25°C (77°F)

Non-condensing -40°C (-40°F) 70°C (158°F)

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Mounting options

You can place the Remote Office 9150 unit on a desk or in a rack, or you can mount it on the wall.

The Remote Office 9150 unit dimensions are

42.5 cm (17 in.) wide (without rack-mounting brackets)

■

29.4 cm (11.75 in.) deep

■

4.4 cm (1.75 in.) high

■

Mounting the Remote Office 9150 unit in a rack

If you want to install the Remote Office 9150 unit in a rack, the rack slot must

be large enough to provide air circulation to keep the Remote Office 9150

■

unit cool allow you to securely fasten the Remote Office 9150 unit to the rack using

■

the rack-mount brackets

Mounting the Remote Office 9150 unit on the wall

If you want to install the Remote Office 9150 unit on the wall, you can mount it so the cables from the rear panel are directed either right or left. Ensure that the chosen location allows you to easily view the LEDs on the front panel.

ATTENTION

You must complete wall installation using standard telephony installation practices.

Connections

The following connections are made from the rear panel of the Remote Office 9150 unit to the telephone and data networks:

Two 25-pair connectors (labeled TELCO 1 and TELCO 2) provide tip and

■

ring connections to stations (telephones) and central office trunks (ISDN BRI). These connections provide the interface to the telephone network and the PSTN.

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An RJ-45 connector (labeled ETHERNET) provides a 10BaseT Ethernet

■

connection. This connection provides the ability to pass both voice and data administration traffic over the existing Ethernet network.

A DB-9 connector (labeled ADMIN) provides an RS-232 serial port

■

connection. You can use this serial port connection to configure a Remote Office 9150 unit that is directly connected to a PC.

The DB-25 connector (labeled V.35) is for future use.

■

Cables included with the Remote Office 9150 unit

The Remote Office 9150 unit package includes the following cables:

power cord and power supply

■

Notes:

In North America, the power cord and power supply are included inside

■

the Remote Office 9150 box. In all other regions, the power supply is provided inside the box. However, the power cord for your region is provided outside the box.

When the North American power cord and power supply are connected

■

together, they are 3.2 meters (10.4 feet) in length.

RS-232 serial cable

■

If the RS-232 cable is not long enough, you can supply your own cable, up to 15.38 meters (50 feet) in length.

Cables you must supply yourself

The cables used to establish the telephone and Ethernet network connections are industry-standard cables. They are not provided in the Remote Office 9150 package. You must obtain them from your local cable supplier.

Telephone network cables

The telephone network cables establish the telephone and trunk connections.

One end of the cable must provide a male 50-pin connector. (This end connects to the Remote Office 9150 unit.)

74 Remote Office 9150

Nortel Remote Office 9150 Installation And Administration Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

About this document

About this guide

Skills you need

Related information products

Conventions used in this guide

Remote Office 9150 description

Overview

Section A: Product description

Overview

What is Remote Office 9150?

Remote Office 9150 hardware description

Add-on modules description

Connection options

How the Remote Office 9150 unit works

Section B: Feature description

Overview

System security

Trunking, connection types, and call timers

Telephones

Voice over IP features

Port management

Station priority

Connection bandwidth

Local calling

Online/offline table

Other supported features

Administration software

Planning for installation

Overview

Installation checklist

Physical environment