Nortel Networks NN43001-504 User Manual

Nortel Communication Server 1000

WLAN IP Telephony Installation and Commissioning

NN43001-504

Document status: Standard Document version: 01.02 Document date: 15 June 2007

Sourced in Canada The information in this document is subject to change without notice. The statements, conﬁgurations, technical

data, and recommendations in this document are believed to be accurate and reliable, but are presented without express or implied warranty. Users must take full responsibility for their applications of any products speciﬁed in this document. The information in this document is proprietary to Nortel Networks.

Nortel, the Nortel logo and the Globemark are trademarks of Nortel Networks. All other trademarks are the property of their respective owners.

Revision history

June 2007

Standard 01.02. This document is up-issued to reﬂect a change in the revision history.

May 2007

Standard 01.01. This document is issued to support Nortel Communication Server 1000 Release 5.0. This document contains information previously contained in the following legacy document, now retired: WLAN IP Telephony Installation and Conﬁguration (553-3001-304).

August 2005

Standard 4.00. This document is up-issued to support Nortel Communication Server 1000 Release 4.5.

September 2004

Standard 3.00. This document is up-issued to support Nortel Networks Communication Server 1000 Release 4.0.

June 2004

Standard 2.00. This document is up-issued to reﬂect changes in technical content.

May 2004

Standard 1.00. This document is issued to support the Nortel Networks WLAN system, including the Nortel Networks WLAN IP Telephony Manager 2245, Nortel Networks WLAN Application Gateway 2246, Nortel Networks WLAN Handset 2210, and Nortel Networks WLAN Handset 2211.

WLAN IP Telephony Installation and Commissioning

Nortel Communication Server 1000

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Release 5.0 15 June 2007

4 Revision history

WLAN IP Telephony Installation and Commissioning

Nortel Communication Server 1000

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Release 5.0 15 June 2007

Contents

New in this release 13

Feature description 13 Other changes 13

How to get help 17

Getting help from the Nortel Web site 17 Getting help over the phone from a Nortel Solutions Center 17 Getting help from a specialist by using an Express Routing Code 17 Getting help through a Nortel distributor or reseller 18

Multicast 14 Zones for wireless handsets 14 Open and use the Admin menu on the handset 14 Admin menu options for the WLAN Handset 6120/6140 14 Download the software 14 Feature programming for the WLAN Handset 6120/6140 14 Test the wireless handsets 14 Run Site Survey for the WLAN Handset 6120/6140 14 Diagnostics mode 14 Push-to-talk 14 Wireless handset status messages 15

Overview 19

Subject 19 Applicable systems 20 Conventions 21 Resources 21 Declaration of conformity 22 Shielded cable 22 Wireless telephone network description 22 Call Server 24 DHCP Server 25

DHCP options 25 TFTP Server 25 Firewall 25 WLAN Handset 2210/2211/2212 and WLAN Handset 6120/6140 25

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6 Contents

Components 26

Language 27

Licenses 27

Wi-Fi Multimedia 27

Wired Equivalent Privacy 28

Wi-Fi Protected Access 28

Wi-Fi Protected Access2 28

Virtual Private Network 28

Push-to-talk feature 28

Text-messaging feature 28

Loud noise environments 29 WLAN IP Telephony Manager 2245 29 WLAN Application Gateway 2246 30 Access Points 30

Handset switchover 31 Handset switchover 31

Loss of signal 31

Planning 33

Challenges of integrating voice applications 33

High overhead of 802.11 34

Rate scaling and variable capacity 34

Power adjustments and variable capacity 35

Quality of Service 35 DHCP server planning 36 TFTP Server planning 38 Syslog Server planning 40 Access point planning 40

Site survey 41

Effective site survey 43

Example of AP placement 44

Solving coverage issues 45

Solving overlap issues 45 Network planning 46 Network recommendation 46

Sample Access Control List 47 Network management 47

Assessment through a WLAN site survey 48

Assessment using NetIQ Vivinet Assessor 49

Monitoring and reporting with Enterprise Network Monitoring System 50

Monitoring and reporting with Communication Server 1000 Telephony

Manager 52

Monitoring and reporting with NetiQ Vivinet Assessor, Vivinet AppManager, and

Vivinet Diagnostics 53

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Communication Server 1000 Telephony Manager 54 Zones 54 Other network design considerations 55

Access Point interference 56

SSID options and limitations 57

Layer 3 implementation 58 WLAN IP Telephony Manager 2245 planning 59

Installation requirements 59

Capacities 59

WLAN IP Telephony Manager 2245 groups 60

Gateway and timing function 64

Roaming and handover 64 Multicast 65 Placement guidelines for the WLAN IP Telephony Manager 2245 65 WLAN Application Gateway 2246 planning 73 WLAN IP Telephony Manager 2245 and WLAN Application Gateway 2246

installation requirements 74

IP address planning 74

IP addressing with DHCP 75 Planning worksheets 75

System information 77

Bandwidth management 77

Zones 77

Zones for wireless handsets 78

Call blocking 79 Codecs 79 Jitter buffer 80 RLR and SLR 80 RTCP 80 Gain adjustment 81 Programmable rings and tones 81

In/Out of Service tones 81 Virtual Ofﬁce 81 Branch Ofﬁce 81

Local mode display 81 Survivable Remote Gateway 82 External Applications Server 83 End-to-end QoS 83 NAT 83

NAT Traversal feature 84

Network conﬁgurations 84

WLAN IP Telephony Manager 2245 in a NAT environment 88

DHCP Server location in a NAT environment 88

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TFTP Server location in a NAT environment 89

WLAN Application Gateway 2246 in a NAT environment 89 CS 1000 features 90 IP Phone 2004 features 91

Installation 93

Required materials 93

Supplied equipment 94 Preinstallation checklist 94 WLAN IP Telephony Manager 2245 installation tasks 94

About the front panel 94

Wall-mount 95

Rack-mount 96

LAN connection 97

Power connection 97 WLAN Application Gateway 2246 installation 97

WLAN IP Telephony Manager 2245 conﬁguration 99

Introduction 99

Functional description 99 Conﬁguration tasks 101 Connect to the WLAN IP Telephony Manager 2245 101

Serial port connection 101

Telnet connection 102 Conﬁgure the network 103

Save the conﬁguration 105

Changing the master IP address 106 Conﬁgure the WLAN IP Telephony Manager 2245 106 Change the password 108

Administration and maintenance 111

Adding a WLAN IP Telephony Manager 2245 to the system 111

Checking in to the Gateway 111 Replacing a WLAN IP Telephony Manager 2245 112

Failed master WLAN IP Telephony Manager 2245 112

Replacing the failed WLAN IP Telephony Manager 2245 112 Removing a WLAN IP Telephony Manager 2245 from the system 113

Wireless handset scenarios 113 Changing the master WLAN IP Telephony Manager 2245 113 View software version 113

For the WLAN IP Telephony Manager 2245 114

For the WLAN Application Gateway 2246 114

For a wireless handset 114 Software updates 114

Update software on the WLAN IP Telephony Manager 2245 115

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Update software on the WLAN Application Gateway 2246 115

Update software on a wireless handset 115

Software update (version 97.070) for the WLAN Handsets 2210/2211/2212 116

Displays 117 Wireless handset download messages 117

Normal download messages 117

Download failure or recovery messages 118

Troubleshooting 119

Troubleshooting the WLAN IP Telephony Manager 2245 119

Error Status screen 119

Network Status screen 120

Software Version Numbers screen 121

Speed or duplex mismatch 122 Troubleshooting the WLAN Application Gateway 2246 122 Troubleshooting the handset 122

Context 122

Access Point problems 123

Conﬁguration problems 123

Duplex mismatch 124

No ring 124

Far-end echo 124 Dropped calls 124

Wireless handset status messages 125

Using Call Server overlay commands 139

TPS CLI commands 141

Determining alias IP addresses 144 Troubleshooting coverage issues 144 Before calling Nortel Technical Support 144

Appendix A WLAN Application Gateway 2246 147

Introduction 147

System overview 148

Front panel 149 Third-party applications 150

Nurse-call systems 151 Installation 151

Conﬁguring the WLAN Application Gateway 2246 IP address 152 Conﬁguration 153

Administration console navigation 154

Task summary list 154

Conﬁguring the OAI Box 155

Conﬁguring network parameters 155

Connecting to the LAN 157

Connecting to the Application Server 158

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Continuing conﬁguration through Telnet 160

Connecting through Telnet 160

Conﬁguring the Telephone Line 161

Deleting a handset 162

Searching for a handset 162

Feature programming 163

Setting or changing a password 164 System status 164

Network status 165

Software versions 166

Telephone line status 167 Certiﬁcation testing 167

WLAN Application Gateway 2246 certiﬁcation 167

Wireless handset certiﬁcation 167 Software 168

Software updates 168

TFTP software updates Systems 170 Planning Worksheet for Handsets 171 Free the serial port for administrative purposes 172

Appendix B Troubleshooting WLAN IP Telephony

installations 173

Site data-gathering tables 173 Product-speciﬁc conﬁguration 176

Terminal proxy server 176

Handsets 177

WLAN IP Telephony Manager 2245 177

Quality of Service 177 WLAN speciﬁc conﬁguration 177

Nortel switches 178

Cisco access points and switches 178 General WLAN conﬁguration 183 DHCP server options 184 DHCP options 184

DHCP support for handsets that emulate the IP Phone 2004 187

Format of the IP Phone 2004 Terminal DHCP Class Identiﬁer ﬁeld 187

Format of the IP Phone 2004 Terminal DHCP Encapsulated Vendor Speciﬁc

option 188

Format of the IP Phone 2004 Terminal DHCP Site Speciﬁc option 189 Quality of Service checklist for voice over WLAN applications 191

RF basics and AP conﬁguration 193 Troubleshooting 196

Diagnosis ﬂows 196 Handset error messages 198

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Timing information 199 Diagnostic Tools 200

Run Site Survey for the WLAN Handset 2210/2211/2212 200

Run Site Survey for the WLAN Handset 6120/6140 201

Diagnostics Mode 204

Syslog Mode 207 Data capture 213

Questions 213

Data checklist 213

Site-data required for the capture analysis 214

Syslog capture conﬁguration 215

Signaling Server log capture 216

General data capture 217 Capture assert error messages with the Conﬁguration Cradle 218 Network speech levels 219 Reference documents 220

Appendix C Compatible Access Points 223 Index 224

Procedures

Procedure 1 Measuring jitter, delay, and packet loss 71 Procedure 2 Wall-mounting the WLAN IP Telephony Manager 2245 96 Procedure 3 Rack-mounting the WLAN IP Telephony Manager 2245 96 Procedure 4 Connecting the power 97 Procedure 5 Connecting to the WLAN IP Telephony Manager 2245 through

a serial port 102

Procedure 6 Connecting to the WLAN IP Telephony Manager 2245 through

Telnet 103 Procedure 7 Saving the conﬁguration 105 Procedure 8 Changing the password 108 Procedure 9 Changing a forgotten password 109 Procedure 10 Replacing a WLAN IP Telephony Manager 2245 112 Procedure 11 Viewing the software version 114 Procedure 12 Updating software (v97.070) for the WLAN Handsets 2210/

2211/ 2212 116 Procedure 13 Installing the WLAN Application Gateway 2246 152 Procedure 14 Connecting to the WLAN Application Gateway 2246 through a

serial port 152 Procedure 15 Conﬁgure the system type from the OAI Box Conﬁguration

option 155 Procedure 16 Conﬁguring the network 156 Procedure 17 Connecting the WLAN Application Gateway 2246 to the

LAN 157 Procedure 18 Connecting to a WLAN Application Gateway 2246 through

Telnet 160 Procedure 19 Conﬁguring a telephone line 161 Procedure 20 Deleting a handset 162

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Procedure 21 Searching for a handset 162 Procedure 22 Programming a feature 163 Procedure 23 Setting or changing a password 164 Procedure 24 Viewing system status 165 Procedure 25 Certifying wireless handsets on an existing system 168 Procedure 26 Transferring the software using FTP 169 Procedure 27 Loading software updates 170 Procedure 28 Using the serial port as the Application Server communication

link 172 Procedure 29 Using the CLI to capture a Signaling Server log 216 Procedure 30 Obtaining the wired and wireless captures 217 Procedure 31 Recording an assert error message 218

WLAN IP Telephony Installation and Commissioning

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New in this release

The following sections detail what is new in WLAN IP Telephony Installation and Commissioning (NN43001-504) for CS 1000, Release 5.0.

Feature description

Support is provided for the WLAN Handset 6120/6140 through the addition of the Nortel WLAN Handset 6100 Series Administration Tool Software. For more information about this tool for the WLAN Handset 6120/6140, including personal computer requirements, how to install the USB driver, and how to install and use the software, see WLAN Handsets Fundamentals

(NN43001-505).

Other changes

This document is renamed and renumbered from WLAN IP Telephony: Installation and Conﬁguration (553-3001-304) to WLAN IP Telephony Installation and Commissioning (NN43001-504). WLAN Handset conﬁguration information is moved to WLAN Handsets Fundamentals (NN43001-505).

For information about changes that are not feature-related,see the following sections:

•

"Multicast" (page 14)

•

"Zones for wireless handsets" (page 14)

•

"Open and use the Admin menu on the handset" (page 14)

•

"Admin menu options for the WLAN Handset 6120/6140" (page 14)

•

"Download the software" (page 14)

•

"Feature programming for the WLAN Handset 6120/6140" (page 14)

•

"Test the wireless handsets" (page 14)

•

"Run Site Survey for the WLAN Handset 6120/6140" (page 14)

•

"Diagnostics mode" (page 14)

•

"Push-to-talk" (page 14)

•

"Wireless handset status messages" (page 15)

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14 New in this release

Multicast

The WLAN Handset 6140 uses IP multicast addresses.

Zones for wireless handsets

The WLAN Handset 6120/6140 is added to the designated wireless handset types.

Open and use the Admin menu on the handset

The procedures for opening and using the Admin menu on the WLAN Handset 6120/6140 and how to make an alphanumeric string entry are added.

Admin menu options for the WLAN Handset 6120/6140

A full description of all the options available from the Admin menu is given for the WLAN Handset 6120/6140.

Download the software

The procedure for downloading the software for the WLAN Handset 6120/6140 is described.

Feature programming for the WLAN Handset 6120/6140

A full description of the feature programming available for the WLAN Handset 6120/6140 is provided. This section includes soft key assignment, feature assignment, programming memory keys, accessing features, and programming the keys on the WLAN Handset 6120/6140.

Test the wireless handsets

The procedure for testing the WLAN IP 6120 handset is provided.

Run Site Survey for the WLAN Handset 6120/6140

Site Survey is used to evaluate the facility coverage before certifying that an installation is complete.

Diagnostics mode

Diagnostics screen 2 shows the GatewayType for all handsets.

Push-to-talk

With the Push-to-talk (PTT) feature, the WLAN Handset 6120/6140 can operate in a PTT group-broadcast mode like a two-way radio, in addition to the standard telephone operation. This section describes how to initiate and receive a PTT call.

WLAN IP Telephony Installation and Commissioning

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Wireless handset status messages

The new messages are:

•

Error!

•

Server Unavailable. Restarting...

Other changes 15

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WLAN IP Telephony Installation and Commissioning

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How to get help

This chapter explains how to get help for Nortel products and services.

Getting help from the Nortel Web site

The best way to get technical support for Nortel products is from the Nortel Technical Support Web site:

ww.nortel.com/support

This site provides access to software, documentation, bulletins, and tools to address issues with Nortel products. From this site, you can:

•

download software, documentation, and product bulletins

•

search the Technical Support Web site and the Nortel Knowledge Base for answers to technical issues

•

arrange for automatic notiﬁcation of new software and documentation for Nortel equipment

•

open and manage technical support cases

Getting help over the phone from a Nortel Solutions Center

If you do not ﬁnd the information you require on the Nortel Technical Support Web site, and you have a Nortel support contract, you can also get help over the telephone from a Nortel Solutions Center.

In North America, call 1-800-4NORTEL (1-800-466-7835). Outside North America, go to the following Web site to obtain the telephone

number for your region:

ww.nortel.com/callus

Getting help from a specialist by using an Express Routing Code

To access some Nortel Technical Solutions Centers, you can use an Express Routing Code (ERC) to quickly route your call to a specialist in your Nortel product or service. To locate the current ERC for your product or service, go to:

WLAN IP Telephony Installation and Commissioning

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18 How to get help

www.nortel.com/erc

Getting help through a Nortel distributor or reseller

If you purchased a service contract for your Nortel product from a distributor or authorized reseller, contact the technical support staff for that distributor or reseller.

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Overview

This chapter contains information about the following topics:

•

"Subject" (page 19) "Applicable systems" (page 20) "Conventions" (page 21) "Related information" (page 21) "Declaration of conformity" (page 22) "Shielded cable" (page 22) "Wireless telephone network description" (page 22) "Call Server" (page 24) "DHCP Server" (page 25) "TFTP Server" (page 25) "Firewall" (page 25)

•

"WLAN Handset 2210/2211/2212 and WLAN Handset 6120/6140" (page 25)

•

"WLAN IP Telephony Manager 2245" (page 29)

•

"WLAN Application Gateway 2246" (page 30)

•

"Access Points" (page 30)

•

"Handset switchover" (page 31)

Subject

This document describes the planning, installation, conﬁguration, maintenance, and troubleshooting for the Nortel WLAN system, including the following elements:

•

Nortel WLAN IP Telephony Manager 2245

•

Nortel WLAN Application Gateway 2246 (optional)

•

Nortel WLAN Handset 2210

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20 Overview

•

Nortel WLAN Handset 2211

•

Nortel WLAN Handset 2212

•

Nortel WLAN Handset 6120

•

Nortel WLAN Handset 6140

Note about legacy products and releases

This NTP contains information about systems, components, and features that are compatible with Nortel Communication Server 1000 Release 5.0 software. For more information about legacy products and releases, click the Technical Documentation link under Support & Training on the Nortel home page:

ww.nortel.com

Applicable systems

This document applies to the following systems:

•

Communication Server 1000M Half Group (CS 1000M HG)

•

Communication Server 1000M Single Group (CS 1000M SG)

•

Communication Server 1000M Multi Group (CS 1000M MG)

•

Communication Server 1000E (CS 1000E) Note: When upgrading software, memory upgrades can be required on

the Signaling Server, the Call Server, or both.

System migration

When particular Meridian 1 systems are upgraded to run CS 1000 Release

5.0 software and conﬁgured to include a Signaling Server, they become CS 1000M systems. Table 1 "Meridian 1 systems to CS 1000M systems"

(page 20) lists each Meridian 1 system that supports an upgrade path to

a CS 1000M system.

Table 1 Meridian 1 systems to CS 1000M systems

This Meridian 1 system

Meridian 1 PBX 51C CS 1000M Half Group Meridian 1 PBX 61C CS 1000M Single Group Meridian 1 PBX 81C CS 1000M Multi Group

Maps to this CS 1000M system

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Conventions

Resources

Resources 21

In this document, the following systems are referred to generically as system:

• Communication Server 1000M (CS 1000M)

•

Communication Server 1000E (CS 1000E)

The following systems are referred to generically as large systems:

•

Communication Server 1000M Half Group (CS 1000M HG)

•

Communication Server 1000M Single Group (CS 1000M SG)

•

Communication Server 1000M Multi Group (CS 1000M MG)

This section lists information sources that relate to this document.

NTPs

The following NTPs are referenced in this document:

•

WLAN Handset 2210 User Guide (NN10300-077)

•

WLAN Handset 2211 User Guide (NN10300-078)

•

WLAN Handset 2212 User Guide (NN10300-071)

•

WLAN Handset 6120 User Guide (NN43150-100)

•

Features and Services Fundamentals (NN43001-106)

•

Main Ofﬁce Conﬁguration Guide for Survivable Remote Gateway 50 (NN43001-307)

•

Branch Ofﬁce Installation and Commissioning (NN43001-314)

•

IP Line Fundamentals (NN43001-500)

•

WLAN Handsets Fundamentals (NN43001-505)

Online

To access Nortel documentation online, click the Technical Documentation link under Support & Training on the Nortel home page:

ww.nortel.com

CD-ROM

To obtain Nortel documentation on CD-ROM, contact your Nortel customer representative.

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22 Overview

Declaration of conformity

The WLAN IP Telephony Manager 2245 and WLAN Application Gateway 2246 have been found to comply with the following:

•

FCC Part 15 Class A - Radiate and Conducted Emissions requirements

•

CISPR 22 Class A - Radiate and Conducted Emissions requirements

•

ICES 003 Class A - Radiate and Conducted Emissions requirements

•

EN 55022 Class A - Radiated and Conducted Emissions requirements

•

EN 55024 Immunity Requirements

•

EN 61000-3-2 Harmonic Current Emissions

•

EN 61000-3-3 Flicker Emissions

WARNING

Changes or modiﬁcations to this equipment not approved by Nortel can cause this equipment to not comply with part 15 of the FCC rules and void the user’s authority to operate this equipment.

WARNING

This equipment contains no user-serviceable parts inside. Refer servicing to qualiﬁed service personnel.

Shielded cable

Nortel recommends the use of shielded cable for all external signal connections in order to maintain FCC Part 15 emissions requirements.

Wireless telephone network description

The Nortel WLAN wireless telephone network consists of the following components:

•

Call Server

•

DHCP server

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Wireless telephone network description 23

•

Trivial File Transfer Protocol (TFTP) server

•

Firewall

•

Nortel WLAN Handset 2210/2211/2212, and Nortel WLAN Handset 6120/6140

•

Nortel WLAN IP Telephony Manager 2245

•

Nortel WLAN Application Gateway 2246 (optional)

•

Access Point (AP)—one or more as required by the site

Figure 1 "Typical wireless telephone network conﬁguration" (page 24) shows

a typical wireless telephone network conﬁguration. The three different lines indicate the following:

•

Red—signalling

•

Blue dashed—wireless to wireless audio

•

Blue solid—wireless to wired audio

WLAN IP Telephony Installation and Commissioning

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24 Overview

Figure 1 Typical wireless telephone network conﬁguration

Call Server

The Call Server can be the Call Server of any Nortel Communication Server (CS) 1000 system running CS 1000 Release 5.0 software.

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DHCP Server

DHCP options

WLAN Handset 2210/2211/2212 and WLAN Handset 6120/6140 25

The existing DHCP Server can be on either side of the ﬁrewall, according to the site administrator’s preference. The DHCP server is optional if the wireless handsets and WLAN IP Telephony Manager 2245 are statically conﬁgured.

If you use a DHCP Server, conﬁgure the following options:

•

DHCP Option 3—the Default Gateway

•

DHCP Option 7—the Syslog Server

•

DHCP Option 42—the Time Server

•

DHCP Option 60—the Class Identiﬁer

•

DHCP Option 66—the IP address of the TFTP Server

•

DHCP Option 151—the IP address of the WLAN IP Telephony Manager 2245

• DHCP Option 152—the IP address for the optional WLAN Application

Gateway 2246

For more information, see "DHCP server options" (page 184).

TFTP Server

A TFTP Server is required in an IP Telephony system to distribute software to the wireless handsets and WLAN IP Telephony Manager 2245. It can reside on a different subnet than the Call Server and APs. The TFTP Server can be located on either side of the ﬁrewall.

Firewall

The ﬁrewall is an optional element that is often used to separate the wireless and wired domains.

WLAN Handset 2210/2211/2212 and WLAN Handset 6120/6140

The WLAN Handset 2210/2211/2212 and WLAN Handset 6120/6140 uses Voice over IP (VoIP) technology on IEEE 802.11-compliant Wireless Local Area Networks (WLANs). Access points (AP) use radio frequencies to transmit signals to and from the wireless handsets.

ATTENTION

In this document, handsets means the WLAN Handset 2210/2211/2212 and WLAN Handset 6120/6140. Where the feature refers only to a speciﬁc handset, the full handset name is used.

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26 Overview

Employees carry wireless handsets to make and receive calls as they move throughout the building. The handsets are used only on the premises; they are not cellular phones. The handsets communicate with the CS 1000 and with the WLAN IP Telephony Manager 2245. Just like wired telephones, the wireless handsets receive calls directly, receive transferred calls, transfer calls to other extensions, and make outside and long-distance calls (subject to corporate restrictions).

The handsets interoperate with other IP Line and IP Trunk features and devices, such as IP Peer, and the IP Phone 20xx and IP Softphone 2050 series of IP Phones, with the exception of some media-related constraints described in "Codecs" (page 79).

The frequencies that are allocated are governed by IEEE guidelines for WLANs and are part of the free spectrum. The WLAN Handset 6120/6140 uses a, b, and g frequencies, and the WLAN Handset 2210/2211/2212 uses the b frequency.

The handsets work only in a Nortel Succession 3.0 (and later) environment coordinated with a Communication Server (CS) 1000 or Business Communications Server (BCM). These handsets communicate with the Nortel call server through the Uniﬁed Network IP Stimulus (UNIStim) protocol. The media path of the voice call goes from the handset directly to the destination device (through the WLAN Telephony Manager 2245). In addition, the handset encapsulates all trafﬁc in the SpectraLink VoicePriority (SVP) protocol. The WLAN Telephony Manager 2245 deencapsulates the VoIP trafﬁc from SVP and passes it onto the network—it does not translate between UNIStim and SVP. Therefore, the Telephony Manager 2245 is in the path of all communication to and from the handset. Likewise, signaling goes from the handset to the Telephony Manager 2245 to the call server.

The WLAN Handset 2211 and the WLAN Handset 6140 are the most durable and they are the only handsets that support Push-to-talk (PTT).

For more information about the handsets, see the following publications:

•

WLAN Handset 2210 User Guide (NN10300-077)

•

WLAN Handset 2211 User Guide (NN10300-078)

•

WLAN Handset 2212 User Guide (NN10300-071)

•

WLAN Handset 6120 User Guide (NN43150-100)

•

WLAN Handsets Fundamentals (NN43001-505)

Components

The WLAN Handset Series 2200 offers the following components for local conﬁguration:

•

Nortel WLAN Handset 2200 Series Conﬁguration Cradle Software—software only

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WLAN Handset 2210/2211/2212 and WLAN Handset 6120/6140 27

•

Nortel WLAN Handset 2200 Series Conﬁguration Cradle—required hardware (serial cable included)

The WLAN Handset 6100 Series offers the following components for local conﬁguration:

•

Nortel WLAN Handset 6100 Series Administration Tool Software—software only

•

Nortel WLAN Handset6100 Series Dual Slot Handset Charger—required hardware (USB cable not included)

•

USB Cable for the Nortel WLAN Handset 6100 Series Dual Slot Handset Charger

ATTENTION

For the purposes of this document

•

Conﬁguration Cradle refers to the Nortel WLAN Handset 2200 Series Conﬁguration Cradle.

•

Handset Administration Tool refers to the Nortel WLAN Handset 6100 Series Administration Tool Software.

•

Dual Slot Handset Charger or Handset Charger refers to the Nortel WLAN Handset 6100 Series Dual Slot Handset Charger.

Language

The handset menus and screens that originate from the Call Server are displayed in the languages supported on the Call Server. The administration and conﬁguration menus, and all other local handset prompts are English-only.

Licenses

The handset appears to the Call Server as a standard IP Phone 2004. Therefore, each wireless handset requires one IP User License and is subject to the same feature packaging requirements as the existing IP Phone 2004.

Wi-Fi Multimedia

The handsets support basic Wi-Fi Multimedia (WMM) to improve Quality of Service (QoS), as deﬁned in the 802.11e speciﬁcation. WMM provides prioritized QoS capability when concurrent applications, each with unique latency requirements, are competing for network resources.

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Wired Equivalent Privacy

Wi-Fi Protected Access

Wi-Fi Protected Access2

When WMM is used, all voice trafﬁc originating from the wireless handset is assigned the WMM Voice Access Category, making it the highest priority application. If the wireless network supports WMM, the handsets enable WMM support automatically; otherwise, SpectraLink Voice Prioritization (SVP) is used.

The handsets support Wired Equivalent Privacy (WEP) as deﬁned by the

802.11a, b, and g speciﬁcation. Nortel offers the product with both 40-bit and 128-bit encryption. WEP increases the security of the wireless LAN to a level similar to a wired Ethernet LAN.

The handsets support Wi-Fi Protected Access (WPA) using preshared key (PSK), as deﬁned by the 802.11i speciﬁcation. WPA increases the security of the wireless LAN, using key encryption, key rotation, authentication and message integrity checking.

The handsets support Wi-Fi Protected Access2 (WPA2) using preshared key (PSK) and Advanced Encryption Standard (AES), as deﬁned by the

802.11i speciﬁcation. WPA2 increases the security of the wireless LAN, using key encryption, key rotation, data encryption, authentication, and message integrity checking.

Virtual Private Network

The WLAN Handset 2212 supports Virtual Private Network (VPN) security. VPN security provides a secure tunnel for the transfer of unencrypted information. A two-phase approach is used to negotiate the tunnel, with Phase 1 protecting Phase 2. Phase 1 uses preshared keys, Difﬁe-Hellman group, hashing, and encryption. Phase 2 uses hashing and encryption. Both phases have limited, conﬁgurable lifetimes.

Push-to-talk feature

With the Push-to-talk (PTT) feature, the WLAN Handset 2211 and the WLAN Handset 6140 can operate in a PTT group-broadcast mode like a two-way radio, in addition to the standard telephone operation.

For more information, see WLAN Handsets Fundamentals (NN43001-505).

Text-messaging feature

All WLAN handsets support text messaging applications through the WLAN Application Gateway 2246. The application server communicates to the WLAN Application Gateway 2246 through a proprietary Open Application

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Interface (OAI) messaging protocol. The WLAN Application Gateway 2246 forwards the messages to the WLAN IP Telephony Manager, which encapsulates the message for delivery to the handset.

If text-messaging functions are programmed, the handset can receive text messages. While you access text messages, the handset is in messaging mode. Incoming calls ring with the second call-ringing sound.

Loud noise environments

The handsets are designed to provide optimal voice quality. However, when used in extremely loud noise environments, (for example, close to working heavy machinery), degradation in call quality can be experienced due to echo. Avoid using the handsets in loud noise environments.

WLAN IP Telephony Manager 2245

The WLAN IP Telephony Manager 2245 is a device that manages IP telephony network trafﬁc on the WLAN system. It is required to utilize the 11Mbs maximum transmission speed available in the handsets. The WLAN IP Telephony Manager 2245 acts as a proxy for the wireless handsets. It provides a number of services including a QoS mechanism, AP bandwidth management, and efﬁcient RF link utilization.

WLAN IP Telephony Manager 2245 29

The WLAN IP Telephony Manager 2245 works with the APs to provide Quality of Service (QoS) on the WLAN. All voice packets are encapsulated by the wireless handsets. The encapsulated voice packets to and from the wireless handsets are handled by the WLAN IP Telephony Manager 2245 and routed to and from a Call Server.

SpectraLink Voice Priority (SVP) is the QoS mechanism implemented on the wireless handsets and APs to enhance voice quality over the wireless network. SVP gives preference to voice packets over data packets on the wireless medium, increasing the probability that all voice packets are transmitted and with minimum delay. SVP is fully compliant with the IEEE

802.11 and 802.11a, b, and g standards. Each subnet, where the wireless handsets operate, requires at least one

WLAN IP Telephony Manager 2245. One standalone unit can process up to 80 simultaneous calls depending on the model, as listed in Table 2 "WLAN

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Telephony Manager 2245 model numbers and capacities" (page 30).If

greater capacity is required, multiple units can be used in a master-slave arrangement.

Table 2 WLAN Telephony Manager 2245 model numbers and capacities

Model number Maximum

NTTQ60BA 10 simultaneous users NTTQ60CA 20 simultaneous users NTTQ60AA 80 simultaneous users (standard)

WLAN Application Gateway 2246

The WLAN Application Gateway 2246 is an optional device that enables third-party applications to communicate directly with up to 10 000 wireless handsets. The WLAN Application Gateway 2246 is connected to the LAN Ethernet switch through an RJ-45CAT5 cable.

For more information about the WLAN Application Gateway 2246, see

Appendix "WLAN Application Gateway 2246" (page 147).

number users

A WLAN Application Gateway 2246 supports 64 to 10 000 wireless handsets, depending on the model of Gateway, as listed in Table 3 "WLAN

Application Gateway 2246 models and capacities" (page 30).

Table 3 WLAN Application Gateway 2246 models and capacities

Access Points

802.11a, b, and g APs provide the connection between the wired Ethernet LAN and the wireless (802.11) LAN. APs must be positioned in all areas where the wireless handsets are used. The number and placement of APs

Model number

NTTQ65AA NTTQ65BA NTTQ65CA NTTQ65DA NTTQ65EA NTTQ65FA

Maximum number of users

64 128 256 512 1024 10 000

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