Configuring the Cisco 7920 Wireless IP Phone with WEP Keys, VLANs, and LEAP

Document ID: 43622

Introduction

Prerequisites

Requirements

Components Used

Related Products

Conventions

Background Theory

Network Diagram

Using Open Authentication and Static WEP Keys

Configuring the Cisco 7920

Configuring the Cisco Aironet 1200 AP

Using Open Authentication, Static WEP Keys, and VLANs

Configuring the Cisco 7920

Configuring the Cisco Aironet 1200 AP with a VLAN

Configuring 802.1Q Trunking on the Catalyst 2924 XL

Configuring the Inter−VLAN Router

Using Cisco LEAP

Configuring the Cisco 7920

Configuring the Cisco Aironet 1200 AP for LEAP

Configuring the Cisco Secure Server for LEAP

Troubleshooting Guidelines

Cisco 7920 Exhibits Problems After Configuration Changes

Cisco 7920 Error Message − Association Failed, No AP Found

Cisco 7920 Error Message − No Service IP Config Failed

Cisco 7920 Error Message − Registration Rejected

Cisco 7920 Error Message − Connecting to CallManager 0−5

Cisco 7920 Configuration Utility Can Not Connect to 7920 − Connection Busy

LEAP Authentication Fails

General Troubleshooting Hints

Appendix: Configuring the Cisco 7920 with CallManager

Related Information

Introduction

This document explains how to configure the Cisco 7920 Wireless IP Phone (Cisco 7920) in common network scenarios. It starts with the most basic configuration required to implement a Cisco 7920. It goes on to explain the next level of complexity, which is the use of VLANs. The final level of complexity is the use of Cisco Secure Access Control Server (ACS) for security. The goal of this document is to provide the reader with a single document that covers the basic tasks required to implement a Cisco 7920 in a lab environment, so that the user can use these skills to implement a Cisco 7920 in a live environment. The reason that this document is targeted at a lab environment is that it is impossible to cover, in a single document, all of the possible permutations of equipment and features that are available to implement a Cisco 7920 in a live environment.

The Cisco 7920 is the first Cisco product to combine Voice over IP (VoIP) technology, Wireless LAN (WLAN) technology, Quality of Service (QoS), and Access/Authentication/Authorization (AAA) security. In

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Cisco Systems 7920 appendix Introduction, Document ID

7920 specifications

Cisco Systems, a leading player in the global networking and communications technology sector, designed the Cisco 7920 Wireless IP Phone for mobile professionals seeking seamless connectivity in various environments. Primarily aimed at enhancing communication within enterprise settings, this wireless device offers a plethora of features that cater to the specific needs of businesses.

At the core of the Cisco 7920 is its robust wireless functionality. It operates on IEEE 802.11b/g wireless protocols, allowing users to connect effortlessly to Wi-Fi networks. This flexibility enables employees to communicate effectively from various locations within an office space, promoting mobility and collaboration without being tethered to a desk.

The ergonomic design of the Cisco 7920 prioritizes user comfort. Its lightweight casing and intuitive button layout ensure that users can navigate the interface with ease. The device is equipped with a vibrant color display, allowing for clear visibility of caller ID, call status, and menu options, enhancing the user experience further. Additionally, the handset supports a wide variety of languages, making it suitable for global teams.

In terms of features, the Cisco 7920 is loaded with advanced capabilities. It supports voice over IP (VoIP), delivering high-quality audio and ensuring reliable communication. Users benefit from features like a contextual menu, call hold, transfer, conference calling, and voicemail access on the go. The phone also offers a wide range of ringtones, allowing customization to suit personal preferences or company branding.

Security is a crucial aspect of modern telecommunications, and the Cisco 7920 does not fall short. It incorporates industry-standard security protocols such as Wired Equivalent Privacy (WEP) and Wi-Fi Protected Access (WPA), safeguarding communications from potential threats.

Moreover, the Cisco 7920 integrates seamlessly with Cisco Unified Communications Manager, enabling centralized management and control. This integration ensures that IT departments can deploy, manage, and troubleshoot devices efficiently, streamlining operations while ensuring optimal performance.

In conclusion, the Cisco 7920 Wireless IP Phone stands out as a versatile communication tool designed for the fast-paced workplace. Its combination of wireless connectivity, ergonomic design, advanced features, and robust security makes it an essential accessory for businesses looking to elevate their communication strategies. With its established reputation, Cisco continues to support companies in achieving seamless connectivity and effective collaboration.