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Cisco Unified Wireless IP Phone 7921G Phone Guide for Cisco Unified Communications Manager 7.0 5
Caution Use only the Cisco power supply that is compatible with your phone. To order your power
supply, contact your local dealer and refer to the following list of Cisco part numbers:
Australia—CP-PWR-7921G-AU=
Central Europe—CP-PWR-7921G-CE=
China—CP-PWR-7921G-CN=
Japan—CP-PWR-7921G-JP=
North America—CP-PWR-7921G-NA=
United Kingdom—CP-PWR-7921G-UK=
Note The battery and power supply are not provided with your phone. To order the battery and
power supply, contact your local dealer.
Power Outage
Your accessibility to emergency service through the phone is dependent on the wireless access point
being powered. If there is an interruption in the power supply, Service and Emergency Calling Service
dialing will not function until power is restored. In the case of a power failure or disruption, you may
need to reset or reconfigure equipment before using the Service or Emergency Calling Service dialing.
Regulatory Domains
The radio frequency (RF) for this phone is configured for a specific regulatory domain. If you use this
phone outside of its regulatory domain, the phone will not function properly, and you might violate
local regulations.
Healthcare Environments
This product is not a medical device and may use an unlicensed frequency band that is susceptible to
interference from other devices or equipment.
Using External Devices
The following information applies when you use external devices with the Cisco Unified Wireless
IP
Phone:
Cisco recommends the use of good quality external devices (such as headsets) that are shielded against
unwanted radio frequency (RF) and audio frequency (AF) signals.
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.