Nortel Networks NN43001-504 Manual de usuario

Nortel Communication Server 1000WLAN IP Telephony Installationand CommissioningNN43001-504.

10 ContentsContinuing configuration through Telnet 160Connecting through Telnet 160Configuring the Telephone Line 161Deleting a handset 162Searching for

100 WLAN IP Telephony Manager 2245 configurationEach WLAN IP Telephony Manager 2245 is configured with an IPaddress with which all of the wireless hands

Connect to the WLAN IP Telephony Manager 2245 101the entire WLAN IP Telephony Manager 2245 group fails. All active callsare lost and no future calls c

102 WLAN IP Telephony Manager 2245 configurationProcedure 5Connecting to the WLAN IP Telephony Manager 2245 through a serial portStep Action1Using a DB

Configure the network 103Procedure 6Connecting to the WLAN IP Telephony Manager 2245 through TelnetStep Action1Run a Telnet session to the IP address o

104 WLAN IP Telephony Manager 2245 configurationFore more information about the master WLAN IP Telephony Manager2245, see "Master WLAN IP Telephon

Configure the network 105•Maintenance Lock—indicates whether the WLAN IP TelephonyManager 2245 is in Maintenance Lock mode.•Disable Telnet Service—indi

106 WLAN IP Telephony Manager 2245 configuration2Enter Y.3Alternatively, select the Reset option found in the SVP-IIConfiguration screen. Press Esc. See

Configure the WLAN IP Telephony Manager 2245 107— Enter DHCP. Ensure that the IP address of the master WLAN IPTelephony Manager 2245 is configured in th

108 WLAN IP Telephony Manager 2245 configurationTo ensure the system transmits voice packets efficiently and withminimal delay, you must configure the de

Change the password 109•first character must be a letter•other characters can be a letter or a number•dashes, spaces, and punctuation marks are not all

Contents 11Timing information 199Diagnostic Tools 200Run Site Survey for the WLAN Handset 2210/2211/2212 200Run Site Survey for the WLAN Handset 6120/

110 WLAN IP Telephony Manager 2245 configurationNortel Communication Server 1000WLAN IP Telephony Installation and CommissioningNN43001-504 01.02 Stand

111Administration and maintenanceThis section contains information about the following topics:•"Adding a WLAN IP Telephony Manager 2245 to the sy

112 Administration and maintenanceis checking in again and again, it can indicate a problem on the network,such as poor AP coverage for a user who is

View software version 113—End—Removing a WLAN IP Telephony Manager 2245 from the systemWhen a WLAN IP Telephony Manager 2245 is removed from the syste

114 Administration and maintenanceFor the WLAN IP Telephony Manager 2245To view the software versions for the WLAN IP Telephony Manager 2245,follow th

Software updates 115Update software on the WLAN IP Telephony Manager 2245To update the software on the WLAN IP Telephony Manager 2245, resetit. When t

116 Administration and maintenanceIf the TFTP Server cannot be reached at the time the wireless handset ispowered on, resets, or comes back into a WLA

Wireless handset download messages 117For more information, see WLAN Handsets Fundamentals (NN43001-505).DisplaysWhen the wireless handset is powered

118 Administration and maintenanceDownload failure or recovery messagesTable 14 "Failure and recovery messages" (page 118) lists the display

119TroubleshootingThis chapter contains information about the following topics:•"Troubleshooting the WLAN IP Telephony Manager 2245" (page 1

12 ContentsProcedure 21 Searching for a handset 162Procedure 22 Programming a feature 163Procedure 23 Setting or changing a password 164Procedure 24 V

120 TroubleshootingFrom the System Status Menu screen, select Error Status. The Error Statusscreen displays active alarms on the WLAN IP Telephony Man

Troubleshooting the WLAN IP Telephony Manager 2245 121— drop—packets dropped due to insufficient memory— fifo—overrun occurred during reception— alignme

122 TroubleshootingThis information helps to determine if the most recent software version isrunning. This information assists Nortel Technical Suppor

Troubleshooting the handset 123•At what location did the problem occur?Record this information and provide it to the system administrator or NortelTec

124 TroubleshootingDuplex mismatchA duplex mismatch on the WLAN can cause the wireless handsets to notoperate properly. Double-check WLAN connections

Dropped calls 125Wireless handset status messagesWireless handset status messages provide information about the handsetcommunication with the AP and C

126 TroubleshootingMessage Description ActionAuth Failedxxxxxxxxxxxxx...x = AP MAC addressHandset authentication isrefused by the AP; displays theMAC

Dropped calls 127Message Description ActionBad Network Mask The value of the networkmask for the Remote Networkentered in the handset throughthe menus

128 TroubleshootingMessage Description ActionBattery Low The Battery Low messageindicates that the battery packcan be changed while the callis still i

Dropped calls 129Message Description ActionCharge Complete The wireless handset is nowfully charged.No action needed.Checking Code Wireless handset is

13New in this releaseThe following sections detail what is new in WLAN IP Telephony Installationand Commissioning (NN43001-504) for CS 1000, Release 5

130 TroubleshootingMessage Description Actionwireless handset stops trying.Reconfigure the DHCP serverand power-cycle the wirelesshandset.DHCP Error 5

Dropped calls 131Message Description ActionErase Failed Download process failed toerase the memory in thewireless handset.Operation retries but caneve

132 TroubleshootingMessage Description ActionInvalid ID Info The VPN server did notrecognize this user.Make sure that the local ID(KEY ID) entered in

Dropped calls 133Message Description ActionNo Host IP (Addr) The wireless handset isconfigured for static IP (asopposed to use DHCP) andno valid host

134 TroubleshootingMessage Description Action•Out of RangeTry getting closer to an AP.Check to see if other handsetsare working within the samerange o

Dropped calls 135Message Description ActionNo SVP Responseyyy.yyy.yyy.yyyy...y = SVP Server IP addressThe handset has lost contactwith the WLAN IP Tel

136 TroubleshootingMessage Description ActionNo VPN Server The handset cannot find theVPN server.Check that the value of the VPNServer IP address conf

Dropped calls 137Message Description ActionServer Unavailable.Restarting...(For the WLAN Handset6120/6140 only)An error caused the handsetto lose the

138 TroubleshootingMessage Description ActionTFTP ERROR(x):yy A failure occurred during aTFTP software download.(x) = the file number that wasbeing do

Dropped calls 139Message Description ActionWaiting Wireless handset hasattempted some operationseveral times and failed. Itis now waiting for a period

14 New in this releaseMulticastThe WLAN Handset 6140 uses IP multicast addresses.Zones for wireless handsetsThe WLAN Handset 6120/6140 is added to the

140 TroubleshootingMANUFACTURER CODE: [NAME]MODEL:NT CODE: NT2K00GICOLOR CODE: 66RLS CODE: 0SER NUM: 7641C7FWSW VERSION: 0602B59.idu 62 2I2004 TN: 062

Dropped calls 141192.168.10.200 is an alias IP address assigned by the WLAN IP TelephonyManager 2245.TN HWID STATUS HOSTIP TERMIP PORT______ _________

142 Troubleshooting•last two digits—Release Code. The Release Codes are defined asfollows:— IP Phone 2004 Phase 1—0— IP Phone 2004 Phase 2—2— WLAN Hand

Dropped calls 143isetShow, isetShowByTN, and isetShowByIPSimilar to the dsetShow command, the wireless handset outputs its specifichardware ID (see dse

144 Troubleshooting-> usiLibTraceOn "192.168.10.200", 255, 255value = 0 = 0x0Determining alias IP addressesWhen diagnosing network proble

Before calling Nortel Technical Support 145•any error messages displayed on the handset display screen•content of the Syslog Server (if using)•log of

146 TroubleshootingNortel Communication Server 1000WLAN IP Telephony Installation and CommissioningNN43001-504 01.02 StandardRelease 5.0 15 June 2007C

147Appendix AWLAN Application Gateway 2246This appendix contains information about the following topics:•"Introduction" (page 147)•"Thi

148 Appendix A WLAN Application Gateway 2246Model numberMaximumnumber of usersNTTQ65CA256NTTQ65DA512NTTQ65EA1024NTTQ65FA10000In Figure 23 "WLAN A

Introduction 149Figure 24Ethernet switch connectionsFront panelThe WLAN Application Gateway 2246 models have similar front panelindicators. See Figure

Other changes 15Wireless handset status messagesThe new messages are:•Error!•Server Unavailable. Restarting...Nortel Communication Server 1000WLAN IP

150 Appendix A WLAN Application Gateway 2246Figure 25NTTQ65xx•Network Link LEDs— (L)NKOK—lit when there is a network connection, (for example,LINK OK)

Installation 151Manufacturing:•relay alarms to handsets from malfunctioning equipment•enable managers to monitor production outputCall Centers:•review

152 Appendix A WLAN Application Gateway 2246Procedure 13Installing the WLAN Application Gateway 2246Step Action1Place the WLAN Application Gateway 224

Configuration 153•Bits per second: 9600•Data bits: 8•Parity: None•Stop bits: 1•Flow control: NoneNote: If using Windows 2000, Service Pack 2 must be in

154 Appendix A WLAN Application Gateway 2246Administration console navigationUse the keys described in Table 18 "Administration console navigatio

Configuration 1554Select the Feature Programming option to configure the functionsequence that activates the application. See "Programming afeature

156 Appendix A WLAN Application Gateway 2246Procedure 16Configuring the networkStep Action1From the NetLink OAI System screen, select NetworkConfigurati

Configuration 157also possible to access the WLAN Application Gateway 2246using its hostname instead of the IP address.•Logging—can be configured to Sys

158 Appendix A WLAN Application Gateway 2246—End—All components cycle through their usual diagnostic routine.Connecting to the Application ServerSome

Configuration 159The WLAN Application Gateway 2246 uses the following pins on theconnector.Table 19Pins on the connectorPin Function1Carrier Detect2Dat

16 New in this releaseNortel Communication Server 1000WLAN IP Telephony Installation and CommissioningNN43001-504 01.02 StandardRelease 5.0 15 June 20

160 Appendix A WLAN Application Gateway 2246Figure 28WLAN Application Gateway 2246 connection to Application Server through a modemContinuing configura

Continuing configuration through Telnet 161When the configuration procedure is complete, the NetLink OAI Systemscreen adds a Feature Programming option.

162 Appendix A WLAN Application Gateway 22464Write the MAC address on the Wireless Handset PlanningWorksheet. See "Planning Worksheet for Handset

Continuing configuration through Telnet 1632At the Telephone Line Configuration screen, select the field to useas the search key (MAC Address, Name,orExt

164 Appendix A WLAN Application Gateway 22463Type any label up to six characters.The label you type here appears on the handset telephone displayscree

System status 165Procedure 24Viewing system statusStep Action1From the NetLink OAI System screen, select the System StatusMenu option.2At the Systems

166 Appendix A WLAN Application Gateway 2246•User Time Period—the length of time (in seconds) that statisticsaccumulate in the Userpkts column before

Certification testing 167components. This information helps determine if the most recent version ofsoftware is running, and assists Nortel Technical Su

168 Appendix A WLAN Application Gateway 2246WLAN Application Gateway 2246 installation on existing systemFollow the steps in Procedure 25 "Certif

Software 169Nortel periodically upgrades the fnctla.bin file, which is the only filedownloaded. The other files are configuration files and their names are

17How to get helpThis chapter explains how to get help for Nortel products and services.Getting help from the Nortel Web siteThe best way to get techn

170 Appendix A WLAN Application Gateway 22467Navigate to the NetLink OAI System screen for the WLANApplication Gateway 22468Select System Status.9Sele

Planning Worksheet for Handsets 171The code downloads into the WLAN Application Gateway 2246.—End—Planning Worksheet for HandsetsCopy and complete the

172 Appendix A WLAN Application Gateway 2246OAIPort MAC Address User NameDialingExt. IP Address (if static)2627282930Free the serial port for administ

173Appendix BTroubleshooting WLAN IP TelephonyinstallationsThis appendix contains information required for troubleshooting anddiagnosing of a WLAN IP

174 Appendix B Troubleshooting WLAN IP Telephony installationsFigure 29System Information tableFigure 30System History tableNortel Communication Serve

Site data-gathering tables 175Figure 31Customer Environment tableFigure 32Attachments: IP Sniffer Trace Captures tableATTENTIONTake the wired traces a

176 Appendix B Troubleshooting WLAN IP Telephony installationsFigure 33Attachments: Other Required tableProduct-specific configurationThe following sect

WLAN specific configuration 177HandsetsFor the WLAN Handsets 2210/2211/2212, configure the license code to 010to download the Nortel UNIStim firmware.For

178 Appendix B Troubleshooting WLAN IP Telephony installationsNortel switchesThis section contains configuration information for Nortel switches.Nortel

WLAN specific configuration 179•Enable Multicast Support on the WLAN Security Switch 2270 to enableuse of the PTT feature for Nortel Handsets.With the f

18 How to get helpwww.nortel.com/ercGetting help through a Nortel distributor or resellerIf you purchased a service contract for your Nortel product f

180 Appendix B Troubleshooting WLAN IP Telephony installationsYou must add B and C as members under mobility groupconfiguration for switch A.You must a

WLAN specific configuration 181ATTENTION2.x code is not supported. Nortel recommends that sites upgrade to 3.2.116.21code. Contact Nor tel GNTS Technica

182 Appendix B Troubleshooting WLAN IP Telephony installationsAP: 1230 2950 connected the APs 2950 connected to 22457access-list 101 permit udp172.23.

General WLAN configuration 183AP:1230 3650 connected to APs 6509 connected to 22457policy-map trust -voice-2245class voice-sigset ip dscp 40class voice

184 Appendix B Troubleshooting WLAN IP Telephony installationsDHCP server optionsThe DHCP server options known to work in almost every situation are 3

DHCP options 18516 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31MaskCode. 8 bits. Always set to 1.Length. 8 bits. Always set to 4.Mask. 32 bits. Subnet

186 Appendix B Troubleshooting WLAN IP Telephony installations16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31IP addressCode. 8 bits. Always set to 7.L

DHCP options 187DHCP support for handsets that emulate the IP Phone 2004DHCP support in the IP Phone 2004 terminal requires a Class Identifieroption wi

188 Appendix B Troubleshooting WLAN IP Telephony installationsFormat of the IP Phone 2004 Terminal DHCP Encapsulated VendorSpecific optionThe following

DHCP options 189This string can be NULL terminated although the NULL is not requiredfor parsing.Notes:1.aaa and rrr are ASCII-encoded decimal numbers

19OverviewThis chapter contains information about the following topics:•"Subject" (page 19)•"Applicable systems" (page 20)•"C

190 Appendix B Troubleshooting WLAN IP Telephony installationsthe relevant information out of this option and uses it to configure the primaryand (opti

Quality of Ser vice checklist for voice over WLAN applications 191Notes:3.If only one server is required, terminate the primary TPS sequenceimmediatel

192 Appendix B Troubleshooting WLAN IP Telephony installations3.Enable SVP in the APs. SVP must be enabled in all APs that carry voicetraffic. Not all

Quality of Ser vice checklist for voice over WLAN applications 193RF basics and AP configurationThe following points include the characteristics of a g

194 Appendix B Troubleshooting WLAN IP Telephony installations•Use appropriate security mechanisms for the wireless telephones andthe requirements of

Quality of Ser vice checklist for voice over WLAN applications 195— Enable the voice VLAN across the network between the AP, tothe SVP, to the Signali

196 Appendix B Troubleshooting WLAN IP Telephony installations•EAP or MAC Reauthentication interval•TKIP MIC Failure Holdoff TimeTroubleshootingEnsure

Troubleshooting 197Voice-quality issuesThe transport, or IP data network, are the most likely causes of voice-qualityissues. In some circumstances, pr

198 Appendix B Troubleshooting WLAN IP Telephony installationsHandset error messagesTable 26 "Handset error messages" (page 198) shows error

Timing information 199ShortError code Description ActionSVP No SVP Response The phone cannotcommunicate with the WLANIP Telephony Manager 2245.Configu

Document status: StandardDocument version: 01.02Document date: 15 June 2007Copyright © 2004-2007, Nortel NetworksAll Rights Reserved.Sourced in Canada

20 Overview•Nortel WLAN Handset 2211•Nortel WLAN Handset 2212•Nortel WLAN Handset 6120•Nortel WLAN Handset 6140Note about legacy products and releases

200 Appendix B Troubleshooting WLAN IP Telephony installationsThe handset sends a handshake to the WLAN IP Telephony Manager2245 every 30 seconds. If

Diagnostic Tools 20122 = signal strength of the specified AP33 = channel number of the specified AP4444 = DTIM interval configured for the specified APMyI

202 Appendix B Troubleshooting WLAN IP Telephony installations•current security configurationWhen Run Site Survey begins, it is in single SSID mode. Pr

Diagnostic Tools 203When you select Any SSID mode, the summary display contains the firstsix characters of the APs SSID instead of the beacon interval,

204 Appendix B Troubleshooting WLAN IP Telephony installationsATTENTIONNumbers racing across the handset display indicate that AP information is being

Diagnostic Tools 205TxRetryCount is the transmit retry count since power up.Diagnostics Screen 2 displays the following information:JitternnnnnLastRat

206 Appendix B Troubleshooting WLAN IP Telephony installationsmnem is a mnemonic that indicates why the handset did not hand off tothis candidate:Unkn

Diagnostic Tools 207Syslog ModeA Syslog Server must be present on the network so that the handset cansend log messages and have them saved. The Syslog

208 Appendix B Troubleshooting WLAN IP Telephony installationsSyslog message ContentsSuccessful Handoff New AP MACNew AP signal strengthOld AP MACOld

Diagnostic Tools 209Syslog message ContentsAudio stats (AStat) AP MACAP signal strengthPayload size (in ms)Payloads sentPayloads receivedPayloads miss

Resources 21ConventionsIn this document, the following systems are referred to generically assystem:• Communication Server 1000M (CS 1000M)•Communicat

210 Appendix B Troubleshooting WLAN IP Telephony installationsSyslog message ContentsRadio stats (NStat) AP MACAP signal strengthDirected packets sent

Diagnostic Tools 211Syslog message ContentsBroadcast packets sentBroadcast packets receivedTX dropped countTX drop rate (over last 5 seconds)TX retry

212 Appendix B Troubleshooting WLAN IP Telephony installationsReason codenumberMeaning8AUTH TIMEOUT9ASSOC TIMEOUT10FAILED AUTHENTICATION11FAILED ASSOC

Data capture 213Reason codenumberMeaning43FAILED ACTION44DELTS45QOS REQUIRED46CHANGED LISTEN INTERVALData captureUse the information presented in this

214 Appendix B Troubleshooting WLAN IP Telephony installationsFigure 34DHCP scopeNotes:1.Before you begin the data capture, disable any encryption pro

Data capture 215•the TLAN and ELAN IPs for the Voice Gateway Media Cards (VGMC)•a network diagramFor more information, see "Network diagram"

216 Appendix B Troubleshooting WLAN IP Telephony installationsConfigure the handset:•Admin Menu > Diagnostics > Diagnostics mode on•Admin Menu &g

Data capture 217General data captureBefore you run the show run-config or debug commands, enable textcapturing on your Hyper terminal or Telnet applica

218 Appendix B Troubleshooting WLAN IP Telephony installations4Start the wireless and wired sniffer captures.5Initiate a handset to handset regular ca

Network speech levels 2192While the Config program is running, remove the battery pack andplace the handset in the Configuration Cradle.3Open the File m

22 OverviewDeclaration of conformityThe WLAN IP Telephony Manager 2245 and WLAN Application Gateway2246 have been found to comply with the following:•

220 Appendix B Troubleshooting WLAN IP Telephony installationsFigure 35Network speech levelsReference documentsTable 30 "References" (page 2

Reference documents 221Source and typeTitle RevisionCommentsNortelWhite Paper[QoE] DesigningQoS-Enabled Networksfor Voice & Data UserQuality-of- E

222 Appendix B Troubleshooting WLAN IP Telephony installationsSource and typeTitle RevisionCommentsIEEE[802.11g] IEEE Std802.11Wireless LAN MediumAcce

223Appendix CCompatible Access PointsThe Nortel Voice over Wireless LAN solution is supported on VIEW-certifiedAccess Points (APs).For a list of certifi

224IndexSymbols/Numerics10 Mbs 7350 ms 8070 ms 80802.1 pq 83802.1p tagging 83, 83AAccess Points (APs)Compatible 223Administration Console navigational

Index 225LLanguage 27latency 80Layer 2 port 83Layer 2 QoS 83Layer 2 switch port 83Layer 3 port 83locking the WLAN IP Telephony Manager2245 115loss pla

226 IndexWWi-Fi Protected Access (WPA) 28Wi-Fi Protected Access2 (WPA2) 28Wired Equivalent Privacy (WEP) 28WLANconfiguration 183WLAN applications 191No

Nortel Communication Server 1000WLAN IP Telephony Installation and CommissioningCopyright © 2004-2007, Nortel NetworksAll Rights Reserved.Publication:

Wireless telephone network description 23•Trivial File Transfer Protocol (TFTP) server•Firewall•Nortel WLAN Handset 2210/2211/2212, and Nortel WLAN Ha

24 OverviewFigure 1Typical wireless telephone network configurationCall ServerThe Call Server can be the Call Server of any Nortel Communication Server

WLAN Handset 2210/2211/2212 and WLAN Handset 6120/6140 25DHCP ServerThe existing DHCP Server can be on either side of the firewall, accordingto the sit

26 OverviewEmployees carry wireless handsets to make and receive calls as they movethroughout the building. The handsets are used only on the premises

WLAN Handset 2210/2211/2212 and WLAN Handset 6120/6140 27•Nortel WLAN Handset 2200 Series Configuration Cradle—requiredhardware (serial cable included)

28 OverviewWhen WMM is used, all voice traffic originating from the wireless handset isassigned the WMM Voice Access Category, making it the highest pr

WLAN IP Telephony Manager 2245 29Interface (OAI) messaging protocol. The WLAN Application Gateway2246 forwards the messages to the WLAN IP Telephony M

3Revision historyJune 2007Standard 01.02. This document is up-issued to reflect a change in therevision history.May 2007Standard 01.01. This document i

30 OverviewTelephony Manager 2245 model numbers and capacities" (page 30).Ifgreater capacity is required, multiple units can be used in a master-

Handset switchover 31affect the coverage area and capacity of the wireless system. Typically,the requirements for use of handsets are similar to that

32 OverviewNortel Communication Server 1000WLAN IP Telephony Installation and CommissioningNN43001-504 01.02 StandardRelease 5.0 15 June 2007Copyright

33PlanningThis chapter contains information about the following topics:•"Challenges of integrating voice applications" (page 33)•"DHCP

34 Planning•rate scaling and variable capacity•power adjustments and variable capacity•Quality of Service (QoS)High overhead of 802.11Unlike many othe

Challenges of integrating voice applications 35Power adjustments and variable capacityA WLAN has dynamic mechanisms in place for adjusting channels,ad

36 PlanningFor example, if a data device does seize the medium, it can send a1500-byte frame at the lowest data rate (if it is far away from the AP),

DHCP server planning 37handset performs a DNS lookup of the name SLNKSVP2, if Options 6(DNS Server) and 15 (Domain Name) are configured.•DHCP Option 15

38 PlanningFigure 2Sample DHCP reservation showing assigned parametersAnother use for the DHCP server is to make code upgrades to the handseteasier. T

TFTP Server planning 39Only one TFTP server is needed in the network, and it need not becolocated with the handsets or the WLAN IP Telephony Manager 2

4 Revision historyNortel Communication Server 1000WLAN IP Telephony Installation and CommissioningNN43001-504 01.02 StandardRelease 5.0 15 June 2007Co

40 PlanningNortel has tested the following TFTP servers. They are listed in order ofpreference.•Nortel TFTP server (ONMS application)•3COM TFTP•Pumpki

Access point planning 41A site survey is critical to designing and implementing a wireless LAN. Thesite survey is used to determine the number of APs

42 Planningthe Site Survey mode displays signals only from APs on the sameExtended Service Set ID (ESSID), check for signals from APs using allESSIDs

Access point planning 43— 15% of the available bandwidth per call for 1 Mbs operation.Note: These requirements mean that areas with a high-use density

44 Planningcases, a room originally built for a specific purpose, such as a radiologylab, can be converted into something completely different, such as

Access point planning 45Figure 4Sample AP placement diagram for b radioSolving coverage issuesTo resolve coverage issues, add and relocate APs.Solving

46 PlanningFigure 5b radio assignmentFor more information about overlap, see the AP vendor documentation.Network planningYou must ensure that all conn

Network management 47— Necessary traffic for instance DHCP must be allowed, while all othertraffic is denied.Sample Access Control ListThe following is

48 PlanningAssessment through a WLAN site surveyTechnical support for VoWLAN is contingent on customers performing asite survey of the WLAN. Currently

Network management 49Both location-solution types use a form of triangulation to compute thelocation of the device. Depending on the power level of th

5ContentsNew in this release 13Feature description 13Other changes 13Multicast 14Zones for wireless handsets 14Open and use the Admin menu on the hand

50 Planningnoticeable when a voice call traverses such a link. Vivinet Assessor isextremely useful for identifying the symptoms of issues and fixing su

Network management 51Figure 6ENMS 10.5 IPSM overviewAfter you click on a specific IP Phone, the panel in the lower right portion ofthe screen displays

52 PlanningFigure 7ENMS 10.5 IPSM convergence viewENMS can provide down to physical slot port connectivity for the wirednetwork. This topology data is

Network management 53Call tracking is another feature that is not specifically related to QoSmonitoring or fault monitoring, but that is important to s

54 PlanningThe alert from Vivinet AppManager activates Vivinet Diagnostics, whichtraces the path of the call, collects diagnostic information, and can

Other network design considerations 55Other network design considerationsWLAN Handsets 2210/2211/2212 are 802.11b-only devices and theWLAN Handsets 61

56 Planningchannels, which is detrimental to voice devices. As a general policy, forlarge amounts of data, use 802.11a for data and 802.11b for voice,

Other network design considerations 57ExampleThe channel reuse factor for 802.11b networks is fixed at three (threenonoverlapping channels in the 2.4 G

58 PlanningLayer 3 implementationWhere possible, simplify the number of subnets that are used for clientdevices. Even in a Distributed Campus architec

WLAN IP Telephony Manager 2245 planning 59industry. So to mitigate risks, you can use a firewall to block all but theports needed for IP Telephony. Thi

6 ContentsComponents 26Language 27Licenses 27Wi-Fi Multimedia 27Wired Equivalent Privacy 28Wi-Fi Protected Access 28Wi-Fi Protected Access2 28Virtual

60 PlanningIn any subnet where wireless handsets are used, each subnet must haveone or more WLAN IP Telephony Managers 2245. A WLAN IP TelephonyManage

WLAN IP Telephony Manager 2245 planning 61Table 4 "Multiple WLAN IP Telephony Manager 2245-80 capacities" (page61) lists the call capacities

62 PlanningTable 5Multiple WLAN IP Telephony Manager 2245-10 and 2245-20 capacitiesNumber ofWLAN IPTelephonyManagers2245Number of handsetsWLAN IPTelep

WLAN IP Telephony Manager 2245 planning 63The handsets encapsulate their voice payloads in SVP for QoS. Thehandsets further synchronize communications

64 PlanningTo gain this type of predictability, engineer the maximum calls per AP basedon 1 Mb/2 Mb rate selections in the handsets, configure that num

Placement guidelines for the WLAN IP Telephony Manager 2245 65returns. If the wireless handset is configured to use ESSID of the newWLAN, it automatica

66 PlanningBefore adding the WLAN IP Telephony Manager 2245 to the network:•Ensure that the APs used in the network are Voice Interoperabilityfor Ente

Placement guidelines for the WLAN IP Telephony Manager 2245 67To achieve excellent voice quality, Nortel recommends using G711 CODECwith the following

68 Planning•For an example of an end-to-end delay for a WAN, see Figure 13"Example 2: End-to-end delay and packet loss for a WAN" (page 69).

Placement guidelines for the WLAN IP Telephony Manager 2245 69Figure 13Example 2: End-to-end delay and packet loss for a WANNortel Communication Serve

Contents 7Communication Server 1000 Telephony Manager 54Zones 54Other network design considerations 55Access Point interference 56SSID options and lim

70 PlanningFigure 14Example 3: End-to-end delay and packet loss for a LAN to a PSTNUse the following tools to measure jitter, delay and packet loss:•P

Placement guidelines for the WLAN IP Telephony Manager 2245 71Figure 15Measuring jitter, delay and packet lossProcedure 1Measuring jitter, delay, and

72 Planning—End—For an example of packet stream analysis for jitter and packet loss, seeFigure 16 "Part 1: Example of analysis of a packet stream

WLAN Application Gateway 2246 planning 73Figure 17Part 2: Example of analysis of a packet stream captured between segment A and BUsually the WLAN IP T

74 PlanningWLAN IP Telephony Manager 2245 and WLAN Application Gateway2246 installation requirementsLocate the WLAN IP Telephony Manager 2245 and opti

Planning worksheets 75Record the static IP address assignments and store them in a safe place.IP addressing with DHCPA pool of alias IP addresses must

76 PlanningWINS Server IP addressWorkgroup nameSyslog Server IP addressFirst alias IP addressLast alias IP addressCopy and complete the worksheet from

77System informationThis chapter contains information about the following topics:•"Bandwidth management" (page 77)•"Codecs" (page

78 System informationIt is good practice to create a Bandwidth Management Zone for each WLANIP Telephony Manager 2245 group (one group per subnet) in

Codecs 79ORPRT IPDN <subnet of the WLAN IP Telephony Manager 2245 group>Alias IP addressUsing the DN of a wireless handset, support personnel ca

8 ContentsTFTP Server location in a NAT environment 89WLAN Application Gateway 2246 in a NAT environment 89CS 1000 features 90IP Phone 2004 features 9

80 System information2245 repackages the voice data to the correct packet size. The jitter bufferis always configured to 70 ms, and any UNIStim message

Branch Office 81Gain adjustmentThe handsets ignore any UNIStim messages that adjust the loss plan ofthe wireless handset.Programmable rings and tonesTh

82 System informationFor the MG 1000B, if a wireless handset is registered to the Small SystemController (SSC) in Local mode, the local-mode license i

NAT 83Note 2: No patch is required for SRG 1.0 based on BCM 3.7 or SRG50systemsFor more information about SRG, see Main Office Configuration Guide forSu

84 System informationNAT Traversal featureThe NAT Traversal feature is used where the IP Phone (this includes thehandsets) is located on the private s

NAT 85Figure 18VPN design over a Layer 2 networkNortel Communication Server 1000WLAN IP Telephony Installation and CommissioningNN43001-504 01.02 Stan

86 System informationFigure 19VPN design over a Layer 3 networkATTENTIONIf the WLAN IP Telephony Manager 2245 is not in the same subnet as thehandsets

NAT 87DHCP assignments, the routing requirements on the VPN Router becomemuch more complicated. To support such a scenario, you must configurestatic ro

88 System informationHandsets 2210/2211 handsets use the same WLAN IP Telephony Manageras the WLAN Handset 2212 (VPN). This WLAN IP Telephony Manageri

NAT 89Figure 21Network configuration 3 with Full DHCP ServerTFTP Server location in a NAT environmentThe TFTP Server can be located on the public side

Contents 9Update software on the WLAN Application Gateway 2246 115Update software on a wireless handset 115Software update (version 97.070) for the WL

90 System informationThe WLAN Application Gateway 2246 can be located on the public side ofthe network as long as traffic is allowed on the correct por

IP Phone 2004 features 91IP Phone 2004 featuresTable 12 "IP Phone 2004 features" (page 91) provides information about theIP Phone 2004 featu

92 System informationFeatureSupported on the WLANhandsets DescriptionPassword Admin No The handsets can be password-protected,but this is different fr

93InstallationThis chapter contains information about the following topics:•"Required materials" (page 93)•"Preinstallation checklist&q

94 InstallationSupplied equipmentEach WLAN IP Telephony Manager 2245 and WLAN Application Gateway2246 is shipped with one Class II AC adapter with 24V

WLAN IP Telephony Manager 2245 installation tasks 95Figure 22WLAN IP Telephony Manager 2245 front panel•RS-232 port—the male DB-9 connector (DTE). Pro

96 InstallationProcedure 2Wall-mounting the WLAN IP Telephony Manager 2245Step Action1Use a 18-inch drill bit to drill four pilot holes, on 1.84 by 12

WLAN Application Gateway 2246 installation 974Repeat steps 1-3 for each additional WLAN IP Telephony Manager2245. The mounting plate is designed to pr

98 InstallationNortel Communication Server 1000WLAN IP Telephony Installation and CommissioningNN43001-504 01.02 StandardRelease 5.0 15 June 2007Copyr

99WLAN IP Telephony Manager 2245configurationThis chapter contains information about the following topics:•"Introduction" (page 99)•"Con