order to successfully implement and support the Cisco 7920, system administrators must become familiar with all of these technology areas.

This document was created primarily for readers who have limited experience with one or more of the products and technologies required to install and configure a Cisco 7920 IP Phone. It will also benefit readers that have a great deal of experience in some of the areas but not others.

QoS is not covered in this document, because it is not required that you implement QoS to bring a Cisco 7920 online to place calls. The QoS (Quality of Service) Technical Support page contains links to several very good documents about the implementation of QoS in VoIP environments.

This document also provides some troubleshooting guidelines. It is not intended to be a complete manual to install, configure, or troubleshoot the Cisco 7920 or any of the other components that are used in this document. The related documents that contain more detailed instructions are referenced in the subsequent sections, as appropriate.

WLAN infrastructure devices￿such as the Cisco Aironet 350 Series Access Point (AP) or the Cisco Aironet 1200 Series AP￿treat the Cisco 7920 the same as any other wireless 802.11b client. Cisco CallManager treats the Cisco 7920 like any other Cisco 7960 IP Phone. You can use the knowledge and skills that you already have in these areas when you install, configure, and troubleshoot a Cisco 7920.

Prerequisites

Requirements

This document assumes that you have an operational Cisco CallManager 3.2 or later, a Catalyst switch that supports 802.1Q VLANs, and a Cisco Secure ACS (if you are going to do Light Extensible Authentication Protocol [LEAP]). It is also assumed that you have some experience with these products.

Though it is not required, it is helpful to confirm￿with a PC or another wireless data client￿that your wireless configuration can connect over the Cisco Aironet AP to an IP device on the other side of the AP.

Components Used

The information in this document is based on these software and hardware versions:

∙Cisco 7920 Wireless IP Phone

∙Cisco 7960 IP Phone

∙Cisco CallManager 3.3(3)

∙Catalyst 2924 XL version 12.0(5)WC5a

∙Cisco 2651 Router version 12.2(15)T

∙Cisco 1200 Series AP version 12.2(13)JA4

∙Cisco Secure ACS Release 3.2

The information in this document was created from the devices in a specific lab environment. All of the devices used in this document started with a cleared (default) configuration. If your network is live, make sure that you understand the potential impact of any command.

Related Products

You can substitute any Catalyst Switch that supports 802.1Q trunking. If it is based on Cisco IOS® Software (similar to a 2900 XL), then the configuration examples in this document should work. If it is based on Catalyst OS, then you have to convert the examples as required.

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Cisco Systems 7920 appendix Prerequisites, Requirements, Components Used, Related Products
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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.
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