Introduction, Functional description | Nortel Networks NN43001-504

99

WLAN IP Telephony Manager 2245 conﬁguration

This chapter contains information about the following topics:

•"Introduction" (page 99)

•"Conﬁguration tasks" (page 101)

•"Connect to the WLAN IP Telephony Manager 2245" (page 101)

•"Conﬁgure the network" (page 103)

•"Conﬁgure the WLAN IP Telephony Manager 2245" (page 106)

•"Change the password" (page 108)

Introduction

The WLAN IP Telephony Manager 2245 acts as a proxy for the wireless handsets and provides several services for them. It is connected to the same subnet as the wireless handsets. The wireless handsets always communicate voice and signaling directly with the WLAN IP Telephony Manager 2245, using the proprietary SpectraLink Voice Protocol (SVP).

SVP is required for quality of service (QoS) because the current IEEE 802.11a/b/g wireless LAN standard provides no mechanism for differentiating audio packets from data packets. This standard is undergoing revision to version 802.11e to provide functionality in an industry standard similar to SVP, therefore ensuring high-quality voice in a mixed-client environment.

Functional description

The WLAN IP Telephony Manager 2245 provides the following services to the handsets:

•It acts as a proxy for every wireless handset; that is, all UNIStim signaling and RTP media to and from the wireless handset pass through the WLAN IP Telephony Manager 2245. Except for the initial DHCP and TFTP sessions, the wireless handsets only communicate with the WLAN IP Telephony Manager 2245.

Nortel Communication Server 1000

WLAN IP Telephony Installation and Commissioning

NN43001-504 01.02 Standard

Release 5.0 15 June 2007

Copyright © 2004-2007, Nortel Networks

Image 99

Nortel Networks NN43001-504 manual Wlan IP Telephony Manager 2245 conﬁguration, Introduction, Functional description

Contents

Wlan IP Telephony Installation and Commissioning Page August Revision historyJune May Revision history Contents Planning System information Installation Troubleshooting 119 Release Appendix C Compatible Access Points 223 Index 224 Procedures Copyright 2004-2007, Nortel Networks Feature description New in this releaseOther changes Feature programming for the Wlan Handset 6120/6140 Zones for wireless handsetsOpen and use the Admin menu on the handset Admin menu options for the Wlan Handset 6120/6140 New messages are Error Server Unavailable. Restarting Wireless handset status messages New in this release How to get help Getting help over the phone from a Nortel Solutions CenterGetting help from the Nortel Web site Getting help through a Nortel distributor or reseller Subject Overview System migration Applicable systems Online ConventionsResources NTPs Wireless telephone network description Declaration of conformityShielded cable Wireless telephone network description Call Server Typical wireless telephone network conﬁguration Wlan Handset 2210/2211/2212 and Wlan Handset 6120/6140 Dhcp ServerTftp Server Firewall Components Wi-Fi Multimedia LanguageLicenses Push-to-talk feature Wired Equivalent PrivacyWi-Fi Protected Access Wi-Fi Protected Access2 Loud noise environments Wlan IP Telephony Manager Wlan Application Gateway Access Points Handset switchover Handset switchoverLoss of signal Overview Challenges of integrating voice applications Planning Rate scaling and variable capacity High overhead Quality of Service Power adjustments and variable capacity Dhcp server planning Dhcp server planning Sample Dhcp reservation showing assigned parameters Tftp Server planning Tftp Server planning Access point planning Syslog Server planningRecommendation Site Survey mode Access point requirement considerations for b radioSite survey Frequencies used by b radio Physical site study Effective site surveyNetwork usage Mobility requirements RF transmission testing Example of AP placementWalk-through and survey Solving coverage issues Solving overlap issuesSample AP placement diagram for b radio Network planning Network recommendationRadio assignment Network management Sample Access Control List Assessment through a Wlan site survey Assessment using NetIQ Vivinet Assessor Planning Enms 10.5 Ipsm overview Enms 10.5 Ipsm convergence view Network management NetiQ Vivinet Diagnostics example ZonesCommunication Server 1000 Telephony Manager Other network design considerations Access Point interference Ssid options and limitations Example Single telephony Vlan implementation Layer 3 implementation Installation requirements Wlan IP Telephony Manager 2245 planningCapacities Wlan IP Telephony Manager 2245 groups Master Wlan IP Telephony ManagerGroup capacities Total Handsets 2245 Calls Erlangs 10% use 15% use 20% use Wireless Managers Telephony Managers 2245 2245-10 2245-20 Not applicable Wlan IP Telephony Manager 2245 planning Roaming and handover Access points on the same subnetMobility across different subnets when using Dhcp Gateway and timing function Multicast Placement guidelines for the Wlan IP Telephony Manager Maximum delay, jitter and packet loss Jitter removal for packets going to the AP Example 1 End-to-end delay and packet loss for a LAN Example 2 End-to-end delay and packet loss for a WAN Planning Step Action End Wlan Application Gateway 2246 planning IP address planning Planning worksheets IP addressing with DhcpWlan IP Telephony Manager 2245 planning worksheet Required only if using the optional Wlan Application Gateway System information Bandwidth managementZones Current registration status of wireless handsets Call blocking Wireless telephone type designationCodecs Alias IP address RLR and SLR Jitter buffer Branch Ofﬁce Gain adjustmentProgrammable rings and tones Virtual Ofﬁce Survivable Remote Gateway End-to-end QoS External Applications Server Network conﬁgurations NAT Traversal feature VPN design over a Layer 2 network VPN design over a Layer 3 network Not recommended VoWLAN design Dhcp Server location in a NAT environment Wlan IP Telephony Manager 2245 in a NAT environment Tftp Server location in a NAT environment Wlan Application Gateway 2246 in a NAT environmentNetwork conﬁguration 3 with Full Dhcp Server CS 1000 not supported Feature Feature full name Description CS 1000 features XAS IP Phone 2004 features KEM Supported on the Wlan Feature Handsets Description Required materials Installation About the front panel Preinstallation checklistWlan IP Telephony Manager 2245 installation tasks Supplied equipment Wlan IP Telephony Manager 2245 front panel Wall-mount Procedure Wall-mounting the Wlan IP Telephony Manager Procedure Rack-mounting the Wlan IP Telephony ManagerRack-mount LAN connection Wlan Application Gateway 2246 installationPower connection Procedure Connecting the power Installation Wlan IP Telephony Manager 2245 conﬁguration IntroductionFunctional description Wlan IP Telephony Manager 2245 conﬁguration Conﬁguration tasks Connect to the Wlan IP Telephony ManagerSerial port connection Telnet connection Conﬁgure the network Wlan IP Telephony Manager 2245 conﬁguration Save the conﬁguration Procedure Saving the conﬁguration Changing the master IP address Conﬁgure the Wlan IP Telephony Manager Conﬁgure the Wlan IP Telephony Manager 2245 Procedure Changing the password Change the password Procedure Changing a forgotten password Wlan IP Telephony Manager 2245 conﬁguration Administration and maintenance Adding a Wlan IP Telephony Manager 2245 to the systemChecking in to the Gateway Replacing the failed Wlan IP Telephony Manager Procedure Replacing a Wlan IP Telephony ManagerReplacing a Wlan IP Telephony Manager Failed master Wlan IP Telephony Manager View software version Wireless handset scenariosRemoving a Wlan IP Telephony Manager 2245 from the system Changing the master Wlan IP Telephony Manager For the Wlan IP Telephony Manager Software updatesFor a wireless handset Procedure Viewing the software version Lock the system Update software on the Wlan IP Telephony ManagerUpdate software on the Wlan Application Gateway Update software on a wireless handset Step Action Select Find Products A-Z Normal download messages Message Description Wireless handset download messagesDisplays Normal download messages Failure and recovery messages Message Description Download failure or recovery messages Troubleshooting Troubleshooting the Wlan IP Telephony ManagerError Status screen Network Status screen Software Version Numbers screen Context Troubleshooting the Wlan Application GatewayTroubleshooting the handset Speed or duplex mismatch Conﬁguration problems Access Point problems Far-end echo Dropped callsDuplex mismatch No ring Wireless handset status messages Message Description Action Message Description Action Message Description Action Low Battery and a beep Battery Low messagePower Off/End Call. Place Press Power On/Start Call NN43001-504 01.02 Standard Release 5.0 15 June Do not Power OFF Message Description Action Message Description Action Message Description Action Message Description Action LAN Message Description Action Message Description Action See Updating software LD 32 IDU command Using Call Server overlay commands LD 32 Stat command LD 117 Inventory commandLD 117 Stip command DsetShow command TPS CLI commands E2dsetShow command IsetReset and isetResetAllIsetCount and isetGet UsiLibTrace UmsKernalJobsShow and umsUpgradeAllUmsPolicyShow and umsUpdatePolicy IsetShow, isetShowByTN, and isetShowByIP Troubleshooting coverage issues Before calling Nortel Technical SupportDetermining alias IP addresses Before calling Nortel Technical Support Troubleshooting NTTQ65AB NTTQ65BA Appendix a Wlan Application Gateway System overview Model number Number of usersWlan Application Gateway 2246 connections Front panel Ethernet switch connections NTTQ65xx Third-party applications Nurse-call systems InstallationInstalling with a new system Installing in an existing system Conﬁguring the Wlan Application Gateway 2246 IP address Procedure Installing the Wlan Application Gateway 04830130 Conﬁguration Administration console navigation Task summary listEnter Conﬁguring network parameters Conﬁguring the OAI Box Procedure Conﬁguring the network Connecting to the LAN Connecting to the Application Server Connect to the Application Server through an RS-232 portRS-232 cable connection Pins on the connector Function Connect to the Application Server through the LANConnect to Application Server through a modem Continuing conﬁguration through Telnet Connecting through Telnet Conﬁguring the Telephone Line Procedure Conﬁguring a telephone line Searching for a handset Procedure Deleting a handsetProcedure Searching for a handset Deleting a handset Procedure Programming a feature Feature programming Setting or changing a password Procedure Setting or changing a passwordSystem status Network status Procedure Viewing system status Software versions Viewing the network status Certiﬁcation testing Software updates SoftwareSoftware ﬁles File name Description Procedure Transferring the software using FTP Obtain software using FTP Procedure Loading software updates Tftp software updates Systems Planning Worksheet for Handsets Handset Planning WorksheetDialing Port MAC Address User Name Ext IP Address if static Free the serial port for administrative purposes Site data-gathering tables Appendix B Troubleshooting Wlan IP Telephony installations System Information table System History table Site data-gathering tables Product-speciﬁc conﬁguration Terminal proxy serverAttachments Other Required table Wlan speciﬁc conﬁguration HandsetsWlan IP Telephony Manager Cisco Aironet 1200 Series Nortel switchesNortel Wlan Security Switch Cisco access points and switches Parameter Setting Importance Wlan Security Switch 2270 notes 1230 connected with 2950 and 2245 connected with 2950 Speciﬁc Cisco conﬁguration examples Connected the APs Connected to 1230 connected with 3560 and 2245 connected with 6509 AP1230 Connected to APs General Wlan conﬁguration Dhcp options Dhcp server options Dhcp options Appendix B Troubleshooting Wlan IP Telephony installations Dhcp support for handsets that emulate the IP Phone Appendix B Troubleshooting Wlan IP Telephony installations Dhcp options Appendix B Troubleshooting Wlan IP Telephony installations Copyright 2004-2007, Nortel Networks Appendix B Troubleshooting Wlan IP Telephony installations RF basics and AP conﬁguration Appendix B Troubleshooting Wlan IP Telephony installations Copyright 2004-2007, Nortel Networks Diagnosis ﬂows TroubleshootingCall or signalling-related issues Typical call-related issues Issue Type Check for Typical voice quality issues Issue Type Check for Voice-quality issues Handset error messages Short Error code Description Action Handset error messages Short Error code Description Action Timing informationTiming Wlan IP Telephony Manager Handset to To the AP Run Site Survey for the Wlan Handset 2210/2211/2212 Diagnostic Tools Ssid Ab7bc8 -28 100 2ae578 -48 200 2ae596 -56 Any Detl Alpha Diagnostics Mode SAWA2 Diagnostics Screen 4 displays the following information Syslog message contents Contents Syslog Mode Syslog message Contents Audio stats AStat Radio stats NStat AP TOO Busy Syslog reason codes Reason code Meaning Number Reason code Meaning Number Action Timeout Data checklist Data captureQuestions Dhcp scope Site-data required for the capture analysis Syslog capture conﬁguration Network diagram Procedure Using the CLI to capture a Signaling Server log Signaling Server log capture General data capture Procedure Obtaining the wired and wireless capturesPage Click Get Assert Data Network speech levels Reference documents Network speech levelsReferences Source and type Title Revision Comments Ieee Source and type Title Revision Comments Source and type Title Revision Comments Compatibility Appendix C Compatible Access Points Index Symbols/Numerics Index Wlan Page Wlan IP Telephony Installation and Commissioning