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Appendix D Physical and Operating Environment Specifications
D-2
Cisco Wireless IP Phone 7920 Administration Guide for Cisco CallManager Release 3.3 or Later
OL-3930-02
Power • 1440/1560mA—Standard lithium ion battery
• 1960mA— Extended lithium ion battery
• 100-240 VAC, 50-60 Hz, 0.5 A—when using the
AC adapter
Distance Requirements As supported by the 802.11b specification, the Cisco
Wireless IP Phones should be within 500 to 1000 feet
of an access point.
Desktop Charger
Height
75 mm (3.0 in.)
Desktop Charger
Width
93 mm (3.7 in.)
Desktop Charger
Depth
129 mm (5.1 in.)
Table D-1 Physical and Operating Specification (continued)
Specification Value or Range