Cisco Systems 7970 - page 16

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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 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. See the “Using External Devices with Your Cisco IP Phone” section on page5

for more information.

The primary reason that support of a headset would be inappropriate for the Cisco IP Phone is the

potential for an audible hum. This hum can either be heard by the remote party or by both the remote

party and you, the Cisco 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.

In some cases, a hum experienced by a user may be reduced or eliminated by using a local power cube

(CP-PWR-CUBE-2). See the “Using an External Power Supply” section on page 4 for more

information.

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 or handsets, but some of the headsets and handsets on the

sites listed below have been reported to perform well with Cisco IP Phones.

Nevertheless, it is ultimately still the customer’s responsibility to test this equipment in their own

environment to determine suitable performance.

For information about headsets, see:

http://vxicorp.com/cisco

http://plantronics.com

Contents

Main Cisco IP Phone 7970 Series for Cisco CallManager 4.1(3) Phone Guide INCLUDING LICENSE AND WARRANTY Page Quick Reference Cisco IP Phone 7970 Series Softkey Definitions Icon Reference Button Icon Definitions Common Phone Tasks Softkey Definitions Common Phone Tasks Icon Reference Button Icon Definitions Contents Page Page Page Getting Started How to Use this Guide If you want to... Then Using and Cleaning the Touchscreen Display Where to Find Additional Information If you want to... Then More Information about Customizing Your Phone on the Web Safety and Performance Information Installing and Using Your Phone Using an External Power Supply Using External Devices with Your Cisco IP Phone Connecting Your Phone 9 5 Access port (10/100/10001 PC) 10 Page Page An Overview of Your Phone Buttons and Hardware Page Page Touchscreen Features Call-Handling and Navigation Tips Understanding Lines vs. Calls Lines Calls Understanding Call and Line Icons Going On-Hook and Off-Hook Selecting Calls Viewing and Switching Between Calls Choosing Touchscreen Items Using Feature Menus To choose a touchscreen item... Do this... Entering and Editing Text Getting Help on Your Phone Understanding Feature Functionality and Availability Basic Call Handling Placing a Call Page Page Page Answering a Call Ending a Call Using Hold and Resume Using Mute Transferring a Connected Call Forwarding Your Calls to Another Number Making Conference Calls Types of Supported Conference Calls Standard Conference Calls Meet-Me Conference Calls Starting and Joining a Standard Conference Starting or Joining a Meet-Me Conference Call Advanced Call Handling Storing and Retrieving Parked Calls Picking Up a Redirected Call on Your Phone Using a Shared Line Understanding Shared Lines Remote-in-Use Sharing Call Information and Barging Privacy Adding Yourself to a Shared-Line Call Preventing Others from Viewing or Joining a Shared-Line Call Tracing Suspicious Calls Making and Receiving Secure Calls Prioritizing Critical Calls If you... Then... Using a Handset, Headset, and Speakerphone Obtaining a Headset Using AutoAnswer with a Headset or the Speakerphone If you... Then... Customizing Phone Settings Adjusting the Volume Customizing Rings and Message Indicators Customizing the Touchscreen Setting Up Speed Dial Features Using Voice Messaging, Call Logs, and Directories Accessing Voice Messages Using Call Logs and Directories Accessing Your User Options Web Pages Logging In to the User Options Web Pages Procedure Tips for Navigating the User Options Pages Subscribing to Phone Services If you want to... Then do this after you log in and select your device type... Understanding Additional Configuration Options If you... Then... For more information... If you... Then... For more information... Troubleshooting Your Phone Using the Quality Reporting Tool If you are asked to... Then... Cisco One-Year Limited Hardware Warranty Terms Duration of Hardware Warranty Page Page Index Page Page Page Page Page Page Page Page Cisco Website at www.cisco.com/go/offices