Cisco Unified IP Phone 7962G and 7942G Phone Guide and Quick ...
Cisco Unified IP Phone 7962G and 7942G Phone Guide and Quick ...
Cisco Unified IP Phone 7962G and 7942G Phone Guide and Quick ...
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<strong>Cisco</strong> recommends the use of good quality external devices, for example, headsets that are screenedagainst unwanted radio frequency (RF) <strong>and</strong> audio frequency (AF) signals. Depending on the quality ofthese devices <strong>and</strong> their proximity to other devices such as mobile phones <strong>and</strong> two-way radios, someaudio noise or echo may still occur. An audible hum or buzz may be heard by either the remote partyor by both the remote party <strong>and</strong> the <strong>Cisco</strong> <strong>Unified</strong> <strong>IP</strong> <strong>Phone</strong> user. Humming or buzzing sounds can becaused by a range of outside sources: for example, electric lights, electric motors, or large PC monitors.See Using External Devices, page 3 for more information.NoteIn some cases, hum may be reduced or eliminated by using a local power cube or powerinjector.These environmental <strong>and</strong> hardware inconsistencies in the locations where <strong>Cisco</strong> <strong>Unified</strong> <strong>IP</strong> <strong>Phone</strong>s aredeployed means that there is not a single headset solution that is optimal for all environments.<strong>Cisco</strong> recommends that customers test headsets in their intended environment to determineperformance before making a purchasing decision <strong>and</strong> deploying en masse.Audio Quality Subjective to the UserBeyond the physical, mechanical <strong>and</strong> technical performance, the audio portion of a headset mustsound good to the user <strong>and</strong> to the party on the far end. Sound quality is subjective <strong>and</strong> <strong>Cisco</strong> cannotguarantee the performance of any headsets. However, a variety of headsets from leading headsetmanufacturers have been reported to perform well with <strong>Cisco</strong> <strong>Unified</strong> <strong>IP</strong> <strong>Phone</strong>s. See manufacturer’ssites for details.For information about wireless headsets that work in conjunction with the wireless headset remotehookswitch control feature, got to the following URL: http://www.cisco.com/pcgi-bin/ctdp/Search.pl1. Choose <strong>IP</strong> Communications from the Enter Solution drop-down list box. The Select a SolutionCategory drop-down list box displays.2. Choose <strong>IP</strong> <strong>Phone</strong> Headsets to see a list of Technology Development Program partners.If you want to search for a particular Technology Development Program partner, enter the partner’sname in the Enter Company Name box.6 OL-19613-01
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