Cleaning the Cisco Unified IP Phone

Chapter 9 Troubleshooting and Maintenance

Where to Go for More Troubleshooting Information

Table 9-5	Changes to Voice Quality Metrics

Metric Change		Condition

Conceal Ratio and Conceal		• Network impairment from packet loss or high jitter.
Seconds increase significantly

Conceal Ratio is near or at zero,		• Noise or distortion in the audio channel such as echo or audio
but the voice quality is poor.		levels.
		• Tandem calls that undergo multiple encode/decode such as calls
		to a mobile network or calling card network.
		• Acoustic problems coming from a speakerphone, handsfree
		mobile phone or wireless headset.
		Check packet transmit (TxCnt) and packet receive (RxCnt) counters
		to verify that voice packets are flowing.

Note Voice quality metrics do not account for noise or distortion, only frame loss.

Where to Go for More Troubleshooting Information

If you have additional questions about troubleshooting the Cisco Unified IP Phones, several Cisco.com web sites can provide you with more tips. Choose from the sites available for your access level.

•Cisco Unified IP Phone Troubleshooting Resources:

http://www.cisco.com/en/US/products/hw/phones/ps379/tsd_products_ support_series_home.html

•Cisco Products and Services (Technical Support and Documentation):

http://www.cisco.com/en/US/products/sw/voicesw/tsd_products_support_ category_home.html

To clean your Cisco Unified IP phone, use a soft, dry cloth to wipe the phone and the touchscreen. Do not apply liquids or powders directly on the phone. As with all non-weather-proof electronics, liquids and powders can damage the components and cause failures.

Disable the touchscreen before cleaning it so that you will not inadvertently choose a feature from the pressure of the cleaning cloth. To disable the touchscreen so that it will not respond to touch, press the Display button for more than one second. The phone displays Touchscreen Disabled and the Display button flashes green.

After one minute, the touchscreen automatically re-enables itself. To re-enable the touchscreen before that, press the flashing Display button for more than one second. The phone displays Touchscreen Enabled.

	Cisco Unified IP Phone 7970G/7971G-GE Administration Guide for Cisco Unified Communications Manager 7.0

OL-15299-01		9-17
OL-15299-01		9-17

7970G, 7971G-GE specifications

The Cisco Systems 7971G-GE is a sophisticated IP phone designed for enterprise communication, offering a range of features that enhance productivity and collaboration. As part of the Cisco Unified Communications portfolio, this phone is known for its impressive technology and reliable performance.

One of the main features of the 7971G-GE is its high-resolution color display. The 5-inch LCD screen provides users with a visually appealing and intuitive interface, allowing for easy navigation through menus and contacts. The phone supports up to six lines, making it ideal for users who require multiple lines for simultaneous calls. Users can effortlessly manage calls with the ability to switch between lines and access important call features like hold, transfer, and conference calling.

In terms of audio quality, the Cisco 7971G-GE is equipped with high-definition voice technology. This feature ensures crystal-clear sound during calls, reducing background noise and enhancing the clarity of conversations. The phone also supports wideband audio codecs, enabling a richer voice experience that is particularly valuable in business environments.

The phone is designed with user convenience in mind. It offers programmable buttons that can be customized to suit individual needs, allowing easy access to frequently used functions or contact lists. Additionally, the presence indicator feature lets users see the availability of their colleagues in real-time, promoting more effective communication and collaboration.

Networking capabilities are another strong point of the Cisco 7971G-GE. The phone supports both Power over Ethernet (PoE) and standard Ethernet connectivity. This enables easy deployment without the need for additional power outlets. Moreover, the device is compatible with various Cisco communication platforms, integrating seamlessly with existing Cisco infrastructure, which is essential for businesses looking to upgrade their communications systems.

Security is a crucial consideration for modern enterprises, and Cisco addresses this with robust encryption features that protect voice and video calls. The phone supports secure signaling and media encryption, ensuring that sensitive conversations remain confidential.

Overall, the Cisco Systems 7971G-GE is a feature-rich IP phone that combines advanced technology with user-friendly design. Its high-definition audio, customizable features, and seamless integration with Cisco networks make it a popular choice for businesses seeking to improve their communication systems. With its reliability and performance, the Cisco 7971G-GE continues to support effective collaboration in an increasingly connected world.

Cisco Systems 7971G-GE, 7970G manual Where to Go for More Troubleshooting Information

Models: 7970G 7971G-GE

Where to Go for More Troubleshooting Information

Cleaning the Cisco Unified IP Phone

7970G, 7971G-GE specifications