Not all Cisco IP Telephonyproducts support external devices, cords or cables. For more information,
consult the documentation for your phone.
Note
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 these 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 external devices, cables, and connectors.
In European Union countries, use only external speakers, microphones, and headsets that are fully compliant
with the EMC Directive [89/336/EC].
Caution

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.bis.doc.gov/index.php/
regulations/export-administration-regulations-ear.
Accessibility Features
The Cisco Unified IP Phone 8800 Series provides accessibility features for the vision impaired, the blind, and
the hearing and mobility impaired.
For detailed information about the features on these phones, see http://www.cisco.com/en/US/docs/
voice_ip_comm/cuipph/all_models/accessibility/english/user/guide/access_70.html.
Youcan also find more information about accessibility at this Cisco website:
http://www.cisco.com/web/about/responsibility/accessibility/index.html
Cisco Unified IP Conference Phone 8831 User Guide for Cisco Unified Communications Manager 9.0
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Preface
Cisco product security overview