Cisco 7921G - Unified Wireless IP Phone VoIP Datasheet - Page 5
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Wireless security
QoS
Radar detection
Power save mode
Antenna
Table 3.
Item
Dimensions (H x W x D)
Weight
Battery
Input Power
Operating temperature
Storage temperature
Relative humidity
Vibration
Thermal shock
Altitude
Headset jack
Connector
Material
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Authentication:
● Cisco Wireless Security Suite IEEE 802.1X
● Lightweight Extensible Authentication Protocol
(LEAP) Authentication
● Protected Extensible Authentication Protocol (PEAP)
MS-CHAP v2
● Extensible Authentication Protocol-Flexible
Authentication via Secure Tunneling (EAP-FAST)
● Extensible Authentication Protocol-Transport Layer
Security (EAP-TLS)
● Wi-Fi Protected Access (WPA) Versions 1 and 2;
Personal and Enterprise
● Cisco Centralized Key Management (CCKM)
IEEE 802.11e/Wi-Fi Multimedia (WMM)
● Traffic Specification (TSPEC)
● Enhanced Distributed Channel Access (EDCA)
● QoS Basic Service Set (QBSS)
Dynamic frequency selection (DFS) and transmit power control (TPC) according to 802.11h
● U-APSD
● Power Save Poll (PS-Poll)
● Vertical and horizontal antennas
● Antenna switched diversity (5-GHz band only)
Specifications
Description
● Phone: 5.0 x 2.1 x 1.0 in. (12.7 x 5.3 x 2.5 cm)
● Desktop charger: 3.4 x 4.8 x 5.1 in. (8.6 x 12.2 x 13 cm)
● Phone with standard battery: 5 oz (145g)
● Desktop charger: 12.9 oz (365g)
● Standard lithium-ion (Li-ion) battery life: up to 11.5 hours talk time and 150 hours standby (Release 1.0.4 or
later)
● Extended Li-ion battery life: up to 15.5 hours talk time and 200 hours standby (Release 1.0.4 or later)
● Actual battery life varies based on environmental factors
● Phone: 100-240 VAC, ~0.2 A, 50 to 60 Hz
● Desktop charger: 100 to 240 VAC, ~0.3 A, 50 to 60 Hz
● AC adapters (by geographical region)
32 to 104° F (0 to 40° C)
–22 to 140° F (–30 to 60° C)
10 to 95% (noncondensing)
1.5 Grms maximum, 0.1 in. (2.5 mm) double amplitude at 0.887 octaves per minute from 5-500-5 Hz sweep, 10-
minute dwell on 3 major peaks, in each of the 3 major mutually perpendicular axes
–22° F (–30° C) 24 hours; 158° F (70° C) 24 hours
Certified for operation: 0 to 6,500 ft (0 to 2 km)
2.5 mm (4 conductor tri-band)
USB 1.1 master and slave
Latex free and lead free
Encryption:
● 40- and 128-bit static Wired Equivalent Privacy
(WEP)
● Temporal Key Integrity Protocol (TKIP) and Message
Integrity Check (MIC)
● Advanced Encryption Standard (AES)
Data Sheet
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