Cisco Systems 7970 warranty Audio Quality Subjective to the User

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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. See Using External Devices, page 12 for more information.

The primary reason that support of a headset would be inappropriate for the Cisco Unified 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 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. In some cases, a hum experienced by a user may be reduced or eliminated by using a local power cube or power injector. See Using an External Power Supply, page 11 for more information.

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 or handsets, but some of the headsets and handsets on the sites listed below have been reported to perform well with Cisco Unified 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://www.vxicorp.com/cisco

http://www.plantronics.com/cisco

Cisco Unified IP Phone 7970 Series for Cisco Unified CallManager 4.2(3)

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Contents Including License and Warranty Page Common Phone Tasks Button Icons Contents Using a Handset, Headset, and Speakerphone Cisco One-Year Limited Hardware Warranty Terms Index OL-10776-01 If you want to Then Using this GuideGetting Started Finding Additional Information Safety and Performance InformationVaroitus Tärkeitä Turvallisuusohjeita Waarschuwing Belangrijke VeiligheidsinstructiesAvvertenza Importanti Istruzioni Sulla Sicurezza Warnung Wichtige SicherheitshinweiseVarning! Viktiga Säkerhetsanvisningar Aviso Instruções Importantes DE SegurançaOL-10776-01 GEM Disse Anvisninger OL-10776-01 Page Activity RegulationsPower Outage When connecting cablesUsing an External Power Supply Using External Devices Accessibility FeaturesConnecting Your Phone Headset Information Adjusting the FootstandAdjusting the Handset Rest Registering with TapsAudio Quality Subjective to the User Understanding Buttons and Hardware An Overview of Your PhoneDescription Options Web Pages Accessing Your UserUsing a Handset, Headset Using Mute,Understanding Feature Buttons and Menus, Understanding Touchscreen FeaturesDo this To choose aUnderstanding the Help System on Your Phone Understanding Feature Buttons and MenusShared Line, Understanding Feature AvailabilityUnderstanding Lines vs. Calls Icon Line or call state DescriptionIf you want to Then See Basic Call HandlingPlacing a Call-Basic Options For more informationCorporate PAB servicePlacing a Call-Additional Options Answer Answering a CallIf you want to Then For more information, see Answer orIf you want to Using Hold and ResumeEnding a Call Or EndCallSwitching Between Multiple Calls Using MuteViewing Multiple Calls Transferring Calls Choose Forward all calls Forwarding All Calls to Another NumberMeet-Me Conference Calls Making Conference CallsStandard Conference Calls Press ConfList Starting or Joining a Meet-Me Conference Call To the User Options Web Pages, Options web pages. See Subscribing to Phone Services,Advanced Call Handling Speed DialingPicking Up a Redirected Call on Your Phone Privacy Using a Shared LineRemote-in-Use Icon Sharing Call Information and BargingPress Private CBargeTips Storing and Retrieving Parked Calls Tracing Suspicious Calls Making and Receiving Secure CallsIf you Then Prioritizing Critical CallsUsing Cisco Extension Mobility Tip Logging Out of Hunt GroupsObtaining a Headset Using a Handset, Headset, and SpeakerphoneUsing AutoAnswer User Preferences Rings Using Phone SettingsCustomizing Rings and Message Indicators Choose Change the Ring Settings for your phoneCustomizing the Touchscreen Missed Calls, Placed Calls, or Received Calls Using Call Logs and DirectoriesUsing Call Logs Missed Calls , Placed Calls , or Received Calls Corporate Directory exact name can vary Using Corporate Directory on Your PhoneCustomizing Rings and Message Indicators, Accessing Voice MessagesTips for Navigating the User Options Pages Accessing Your User Options Web PagesProcedure Logging In to the User Options Web PagesSubscribing to Phone Services If you Then For more information Understanding Additional Configuration OptionsSubscribing to Phone Services Using a Shared Line,Advanced Call Handling Using Cisco Extension MobilitySee Using AutoAnswer, See Using Cisco Extension MobilityJoin fails Troubleshooting Your PhoneGeneral Troubleshooting Symptom ExplanationIf you are asked to Then Viewing Phone Administration DataUsing the Quality Reporting Tool Duration of Hardware Warranty Cisco One-Year Limited Hardware Warranty TermsTo Receive a Return Materials Authorization RMA Number Replacement, Repair, or Refund Policy for HardwareOL-10776-01 Index OL-10776-01 Page OL-10776-01 Taps OL-10776-01 Page USA

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