Cisco 7960G User Manual page 115

Appendix B Safety Notices
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The following warning applies for countries of the European Union when using
external devices attached to a Cisco IP Phone.
In European Union countries, use only external speakers, microphones, and
Caution
headsets that are fully compliant with the EMC Directive [89/336/EC].
Using a cell, mobile, or GSM phone, or two-way radio in close proximity to a
Caution
Cisco IP Phone might cause interference. For more information, refer to the
manufacturer's documentation of the interfering device.
Caution Use only a Cisco-approved power supply to power your Cisco IP Phone.
OL-4637-01
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.
Cisco IP Phone 7960G and 7940G User Guide
B-3