When you move the phone out of signal range, you lose connection with the wireless LAN. The

icon appears, and the status

line displays, “Leaving service area.”

 

Tip

Your idle phone screen can turn off after a time interval. To alert you that the phone is still powered on and connected to the wireless network when using battery power, the indicator light blinks green every 2 seconds.

Accessories for the Cisco Unified Wireless IP Phone 7921G

The following phone accessories are available for your phone:

•Standard and extended batteries

•AC power supplies for different geographical areas

•Desktop charger with speakerphone

•Carrying cases

•Lock sets

For a complete list and description of accessories, refer to this guide: Cisco Unified Wireless IP Phone 7921G Accessory Guide.

Headset Information

Although Cisco Systems performs some internal testing of third-party headsets for use with the Cisco Unified IP Phones, Cisco does not certify or support products from headset or handset vendors. Because of the inherent environmental and hardware inconsistencies in the locations where Cisco Unified IP Phones are deployed, there is not a single “best” solution that is optimal for all environments. Cisco recommends that customers test the headsets that work best in their environment before deploying a large number of units in their network.

In some instances, the mechanics or electronics of various headsets can cause remote parties to hear an echo of their own voice when they speak to Cisco Unified IP Phone users.

Cisco Systems recommends the use of good quality external devices, like headsets that are screened against unwanted radio frequency (RF) and audio frequency (AF) signals. Depending on the quality of these devices and their proximity to other devices such as cell phones and two-way radios, some audio noise may still occur.

The primary reason that a particular headset would be inappropriate for the Cisco Unified IP Phone is the potential for an audible hum. This hum can be heard by either the remote party or by both the remote party and you, the Cisco Unified IP Phone user. Some potential humming or buzzing sounds can be caused by a range of outside sources, for example, electric lights, being near electric motors, large PC monitors.

Audio Quality Subjective to the User

Beyond the physical, mechanical and technical performance, the audio portion of a headset must sound good to you (the user) and to the party on the far end. Sound is subjective and Cisco cannot guarantee the performance of any headsets, but some of the headsets on the sites listed below have been reported to perform well on Cisco Unified IP Phones.

Nevertheless, it is ultimately the customer's responsibility to test this equipment in their own environment to determine suitable performance.

For information about headsets for your phone, refer to the Cisco Unified Wireless IP Phone 7921G Accessory Guide and these web sites:

•http://www.plantronics.com

•http://www.jabra.com

Securing the Phone with a Lock Set and Cable Lock

You can secure the Cisco Unified Wireless IP Phone 7921G to a desk top by ordering the lock set from Cisco. For more information, refer to the Cisco Unified Wireless IP Phone 7921G Accessory Guide.

To install the lock set, use the diagram and follow these steps:

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Cisco Systems manual Accessories for the Cisco Unified Wireless IP Phone 7921G, Headset Information
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7921 specifications

The Cisco Systems 7921 is a robust and versatile wireless IP phone specifically designed for enhancing communication in enterprise environments. As part of Cisco's Unified Wireless IP Phone portfolio, the 7921 features an array of innovative solutions that provide users with mobility and productivity right within their workspace.

One of the standout features of the Cisco 7921 is its support for IEEE 802.11b/g wireless standards, allowing for seamless connectivity to Wi-Fi networks. This enables users to make and receive calls anywhere within the network's coverage area, eliminating the limitations of traditional wired telephony. The phone also supports Voice over IP (VoIP), which offers improved audio quality and increased efficiency for voice communication.

The Cisco 7921 boasts a sleek and ergonomic design that promotes ease of use. The device is equipped with a backlit display that provides clear visibility, even in low-light environments. Users can easily navigate through the phone's intuitive interface, which allows for quick access to contacts, call history, and voicemail services. The phone also includes programmable buttons, giving users the flexibility to customize their experience.

In terms of audio quality, the 7921 employs advanced technologies such as wideband audio, which enhances voice clarity and reduces background noise. This is especially important in bustling workplace environments where distractions are common. The device supports a range of headset options, allowing users to choose between wired headsets or Bluetooth solutions for added convenience.

Security is a top priority for Cisco, and the 7921 incorporates various protocols to ensure secure voice communication. With support for WPA2 encryption and other security measures, users can feel confident that their conversations are protected against potential threats.

Another significant characteristic of the Cisco 7921 is its integration with Cisco Unified Communications Manager. This allows for centralized management of voice communications, making it easier for IT departments to deploy, configure, and maintain the devices across the organization. The phone also supports call management features such as call forwarding, transfer, and conferencing, further enriching the user experience.

Overall, the Cisco Systems 7921 wireless IP phone emerges as a reliable communication tool tailored for dynamic work environments. With its combination of mobility, superior audio quality, security features, and intuitive design, the 7921 stands as an ideal choice for organizations seeking to enhance their communication capabilities while fostering a collaborative workplace.
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