Nortel Networks 1 Abstract

Voice over Wireless LAN Solution Guide v1.0 December 2005

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Abstract

This document is intended to define the Voice over Wireless LAN (VoWLAN) solution to assist

sales engineers in creating the best design to fit the customer’s environment while at the same

time eliminating common design errors. The products central to this document are the Nortel

WLAN Security Switch 2300 (models 2350, 2360, and 2380), Nortel WLAN Access Point 2330,

Nortel WLAN Handset (models 2210, 2211, and 2212), Nortel MCS 5100 Client, Nortel IP

Softphone 2050, and Mobile Voice Client 2050.

Contents

Main Copyright 2005 Nortel Networks Trademarks Abstract Page Figures Tables 1. Executive summary 1.1 Challenges 1.1.1 High overhead of 802.11 1.1.2 Rate scaling and variable capacity 1.1.3 Power adjustments and variable capacity 1.1.4 Quality of Service (QoS) 1.2 Scope of document 1.2.1 Products Included 1.2.2 Infrastructure components 2. Nortel VoWLAN solution 2.1 Applications 2.1.1 WLAN Handset 2210/11/12 voice 2.1.2 IP Softphone 2050 2.1.3 Mobile Voice Client (MVC) 2050 2.1.4 MCS Client 2.2 Network architecture 2.2.1 Basic topologies Page Page Page Page Page 2.2.2 Network design constraints Page Page Page Page Page Page Page Page Page 2.2.3 High availability designs Page Page 2.3 Security 2.3.1 WLAN Handset 2210/11/12 security features 2.3.2 IP Softphone 2050 and MCS Client security features 2.3.3 MVC 2050 security features 2.3.4 Minimum security recommendations for WLAN 2300 2.4 Performance and scalability 2.4.1 WLAN AP 2330 scalability Page Page Page 2.4.2 Battery life conservation 2.4.3 WLAN Telephony Manager 2245 scalability WTM 2245s Calls per WTM 2245 Total 15% use #Handsets 2.5 QoS 2.5.1 WLAN Security Switch 2300 and WLAN AP 2330 Page Page Page 2.5.2 Ethernet Switch family Page Page 2.5.3 Ethernet Routing Switch 5510/5520 Page 2.5.4 Ethernet Routing Switch 8300/8600 2.5.5 QoS summary 2.6.1 Issues Page 2.6.2 Recommendations 3. Infrastructure support 3.1 Network management 3.1.1 Assessment WMS 2300 planning WLAN Site Survey NetIQ Vivinet Assessor 3.1.2 Predeployment Enterprise Policy Manager (EPM) WMS 2300 3.1.3 Monitoring and reporting Enterprise NMS (ENMS) Page Page Communication Server 1000 Telephony Manager NetIQ Vivinet Assessor, Vivinet AppManager, and Vivinet Diagnostics Page WMS 2300 3.1.4 Element management Communication Server 1000 Telephony Manager Enterprise Switch Manager (ESM) WMS 2300 3.2 DHCP server 3.2.1 WLAN AP 2330 3.2.2 WLAN Handset 2210/11/12 3.3 DNS server 3.4 TFTP server 4. Appendix A: Quality of Service checklist for VoWLAN applications using 2210/11/12 handsets Page Page Contact us www.nortel.com