Phone Behavior During Times Of Network Congestion; Sar; Product Label - Cisco 840 User Manual

Phone Behavior During Times of Network Congestion

• 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
Phone Behavior During Times of Network Congestion
Anything that degrades network performance can affect phone audio and video quality, and in some cases,
can cause a call to drop. Sources of network degradation can include, but are not limited to, the following
activities:
• Administrative tasks, such as an internal port scan or security scan.
• Attacks that occur on your network, such as a Denial of Service attack.

SAR

Product Label

The product label is located in the battery compartment of the device.
The label on the bottom of the charger base has the regulatory information.
Cisco Wireless Phone 840 and 860 User Guide
138
In European Union countries, use only external headsets that are fully compliant with the EMC Directive
[89/336/EC].
This product meets applicable national SAR limits of 1.6W/kg.
The specific maximum SAR values can be found in
Statements, on page 139.
When carrying the product or using it while worn on your body,
either use an approved accessory such as a holster or otherwise
maintain a distance of 5 mm from the body to ensure compliance
with RF exposure requirements. Note that the product may be
transmitting even if you are not making a phone call.
Product Safety and Security
Compliance