Cisco 7925G Administration Guide - Page 52

Site Survey Verification Chapter 2 Overview of the VoIP Wireless Network Configuring the Wireless Network for Voice This section identifies key AP configuration options that are required for optimal voice performance. This is not a complete list of configuration steps or options for deploying APs such as the Cisco Aironet APs. For more information about configuring your AP, refer to the appropriate Cisco Aironet AP installation and configuration guide for your model or the documentation for your AP. Note When deploying the Cisco Unified Wireless IP Phone 7925G with World regulatory domain (CP-7925GW-K9), you must enable the APs for world mode (802.11d). The world model phone gets the channels and power information from the AP. To see a list of configuration tasks for the Cisco Aironet AP, controller, and Ethernet switch when setting up VoIP on the WLAN, see the "Configuring a Wireless Network" section on page D-1. Configuration Tip for Cisco Aironet APs If you are using EAP-FAST, you must increase the EAP request (802.1x) timeout to at least 20 seconds to ensure that the phone gets the PAC credentials successfully. To change the request timeout on the controller, follow these steps: Procedure Step 1 Step 2 Step 3 Step 4 Use SSH or Telnet to access the Cisco Unified wireless LAN controller. Enter config advanced eap request-timeout 20 Enter save config Enter y to confirm. Site Survey Verification Before the initial deployment of wireless phones in the WLAN, it is recommended that a site survey is performed to verify that the APs are providing adequate coverage and that wireless phones can roam from one AP to another with no audio problems. After the initial deployment, it is a good practice to perform site surveys at regular intervals to ensure continued coverage and roaming. From the Cisco Unified Wireless IP Phone 7925G, you can use the Neighbor List utility or Site Survey utility from the SETTINGS > Status menu. The Neighbor List utility provides information about the current AP and the closest neighbors tracked by the phone. For more information see Using the Neighbor List Utility, page 2-23. The Site Survey utility produces a report, written as a temporary HTML file, upon termination of the survey. This Site Survey Report is accessible from the phone web page for viewing or forwarding to Cisco TAC for troubleshooting purposes. For more information, see Using the Site Survey Utility, page 2-24. You should use the wireless IP phone and the Aironet Client Utility (ACU) to verify that the signal range and transmission power provide adequate coverage for roaming phones. 2-22 Cisco Unified Wireless IP Phone 7925G Administration Guide for Cisco Unified Communications Manager 7.0(1) OL-15984-01