Cisco Systems 7921G manual Battery Types, AC Power Supply

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Battery Types

Battery Types

Table 1 describes the battery types for the Cisco Unified Wireless IP Phone 7921G. Refer to the Cisco Unified Wireless IP Phone 7921G Guide for instructions on installing your battery.

.

Table 1

Battery Types for the Cisco Unified Wireless IP Phone 7921G

 

 

 

 

 

 

Type

 

Technology

Talk Time

Standby Time

Battery Part Numbers

 

 

 

 

 

 

Standard

 

Lithium ion

Up to 10 hours

Up to 80 hours

CP-BATT-7921G-STD=

(firmware

 

 

 

 

 

releases prior to

 

 

 

 

 

1.0(4))

 

 

 

 

 

 

 

 

 

 

 

Standard

 

Lithium ion

Up to 11.5 hours

Up to 150 hours

CP-BATT-7921G-STD=

(firmware

 

 

 

 

 

release 1.0(4)

 

 

 

 

 

and later)

 

 

 

 

 

 

 

 

 

 

 

Extended

 

Lithium ion

Up to 12 hours

Up to 100 hours

CP-BATT-7921G-EXT=

(firmware

 

 

 

 

 

releases prior to

 

 

 

 

 

1.0(4))

 

 

 

 

 

 

 

 

 

 

 

Extended

 

Lithium ion

Up to 15.5 hours

Up to 200 hours

CP-BATT-7921G-EXT=

(firmware

 

 

 

 

 

release 1.0(4)

 

 

 

 

 

and later)

 

 

 

 

 

 

 

 

 

 

 

Caution Use only Cisco supplied batteries with the Cisco Unified Wireless IP Phone 7921G.

AC Power Supply

The power supply with AC plug adapter shown in Figure 1 enables you to quickly charge your phone battery. To use the power supply, first insert the appropriate AC plug adapter, then plug the power supply into a wall outlet, and insert the connector into the base of your Cisco Unified Wireless IP Phone 7921G. You can use the phone while you are charging the battery.

Note If you have a desktop charger, you do not need a phone power supply to charge your phone, too.

Cisco Unified Wireless IP Phone 7921G Accessory Guide

2

OL-11926-02

 

 

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Contents Cisco Unified Wireless IP Phone 7921G Accessory Guide Type Technology Talk Time Standby Time Battery Part Numbers Battery TypesAC Power Supply Power Supply Standard Hours ExtendedProcedure Desktop Charger with SpeakerphoneDesktop Charger with Speakerphone Multi-Charger Desktop Charger ConfigurationExtended Battery Charging TimesCharging Configuration Charging Time Lock Set for PhoneProcedure Headsets Carry Cases Holster Carry CaseLeather Carry Case Shoulder Strap for Carry Case Phone to A-Type 48-Inch USB Cable Protective Cover CasesUSB Cables Standard A-Type to B-Type 48-Inch USB Cable Part Numbers for AccessoriesPhone Accessories Part Number Guidelines for Using Accessories and the Phone Related DocumentationCisco Product Security Overview
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7921G specifications

The Cisco Systems 7921G is a notable wireless VoIP phone designed specifically for business environments. It enhances communication capabilities by merging the advantages of Voice over Internet Protocol (VoIP) with the mobility of wireless technology. The 7921G caters to the needs of enterprises that require reliable connectivity and flexibility.

One of the standout features of the Cisco 7921G is its ergonomic design, which includes a large color display screen that enhances usability. The phone's intuitive interface allows users to navigate through menus effortlessly. Additionally, the device supports a wide range of languages, making it a suitable option for global enterprises.

Technically, the 7921G operates on the IEEE 802.11b/g wireless standards, which ensures compatibility with existing Wi-Fi networks. It employs advanced security protocols such as WPA and WPA2 to safeguard communications against unauthorized access. This is critical for organizations where data security is a top priority.

The device supports a range of advanced telephony features, including call hold, transfer, and three-way conferencing. These features facilitate effective collaboration among team members, regardless of their physical locations. The 7921G also includes support for XML-based applications, enabling custom business applications to be integrated seamlessly.

Battery life is another essential characteristic of the Cisco 7921G. It comes equipped with a rechargeable battery that provides sufficient talk time for a busy workday. Furthermore, the phone features Energy Efficient Ethernet, enhancing power management and reducing overall operational costs.

Audio quality is paramount in any VoIP device, and the 7921G excels in this area with wideband audio technology. This ensures crystal-clear voice clarity, allowing for more natural conversations. In addition, the integration of advanced noise-cancellation technology minimizes background distractions, making conversations more focused and productive.

Moreover, the Cisco 7921G is designed to integrate seamlessly with Cisco Unified Communications Manager, providing IT departments with a unified management experience for VoIP deployment. The combination of features, technologies, and characteristics makes the Cisco 7921G a valuable asset for businesses seeking to improve their communication solutions, offering a balance of mobility, functionality, and security.