Getting Started
Cisco Unified IP Phone 7970 Series Phone Guide for Cisco Unified Communications Manager 6.1(3) -11
 
Depending on the quality of these devices and their proximity to other devices such as mobile phones 
or two-way radios, some audio noise may still occur. In these cases, Cisco recommends that you take 
one or more of the following actions: 
  • Move the external device away from the source of the RF or AF signals. 
  • Route the external device cables away from the source of the RF or AF signals. 
  • Use shielded cables for the external device, or use cables with a better shield and connector. 
  • Shorten the length of the external device cable. 
  • Apply ferrites or other such devices on the cables for the external device. 
Cisco cannot guarantee the performance of the system because Cisco has no control over the quality 
of external devices, cables, and connectors. The system will perform adequately when suitable devices 
are attached using good quality cables and connectors. 
Caution In European Union countries, use only external speakers, microphones, and headsets that 
are fully compliant with the EMC Directive [89/336/EC]. 
Cisco Product Security Overview 
This product contains cryptographic features and is subject to United States and local country laws 
governing import, export, transfer and use. Delivery of Cisco cryptographic products does not imply 
third-party authority to import, export, distribute or use encryption. Importers, exporters, distributors 
and users are responsible for compliance with U.S. and local country laws. By using this product you 
agree to comply with applicable laws and regulations. If you are unable to comply with U.S. and local 
laws, return this product immediately. 
Further information regarding U.S. export regulations may be found at 
http://www.access.gpo.gov/bis/ear/ear_data.html.
Accessibility Features
A list of accessibility features is available upon request. You can find more information about Cisco 
accessibility features at this URL:
www.cisco.com/go/accessibility