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Cisco 7925G Deployment Guide

Cisco 7925G
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Cisco Unified Wireless IP Phone 7925G, 7925G-EX, and 7926G Deployment Guide
27
Windows SAM
Yes
Yes
No
Yes
Windows AD
Yes
Yes
Yes
Yes
LDAP
No
No
Yes
No
ODBC
(ACS for Windows Only)
Yes
Yes
Yes
Yes
LEAP Proxy RADIUS
Server
Yes
Yes
No
Yes
All Token Servers
No
No
No
No
Power Management
The Cisco Unified Wireless IP Phone 7925G, 7925G-EX, and 7926G have an option for a standard or extended battery.
The standard battery (1100 mAh) can provide up to 180 hours of standby time or up to 9.5 hours of talk time.
The extended battery (1400 mAh) can provide up to 240 hours of standby time or up to 13 hours of talk time.
When the access point supports the Cisco Client Extensions (CCX) proxy ARP information element, the idle battery life will be
optimized. Proxy ARP allows the Cisco Unified Wireless IP Phone 7925G, 7925G-EX, and 7926G to remain in sleep mode
longer versus waking up at each Delivery Traffic Indicator Message (DTIM) period to check for incoming broadcasts.
To optimize battery life, the Cisco Unified Wireless IP Phone 7925G, 7925G-EX, and 7926G will utilize either U-APSD or PS-
POLL power save methods depending on whether Wi-Fi MultiMedia (WMM) is enabled in the Access Point configuration or
not.
U-APSD will be utilized when WMM is enabled on the Access Point.
When on call U-APSD, PS-POLL, or active mode will be utilized depending on the Cisco Unified Wireless IP Phone 7925G,
7925G-EX, and 7926G call power save mode configuration and the access point configuration.
When in idle (no active call), the Cisco Unified Wireless IP Phone 7925G, 7925G-EX, and 7926G depending on the Access
Point configuration will utilize U-APSD or PS-POLL.
Battery life can be reduced when on call and using Coexistence (802.11b/g + Bluetooth).
The current battery technology allows for around 300-500 full charging cycles (charging from empty to full) before it will lose
around 20-30% of its capacity, therefore the battery should be replaced every 2-3 years.
The table below lists the maximum on call and idle times for each 802.11 mode and battery type.
802.11 Mode
Call State
Standard
Battery
Extended
Battery
2.4 GHz
On Call
9.5
13
On Call + Bluetooth
5.5
7
Idle
180
240
Idle + Bluetooth Enabled
165
200
5 GHz
On Call
9
11

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Cisco 7925G Specifications

General IconGeneral
Keypad number of keys12
Display diagonal2 \
Display resolution176 x 220 pixels
Call waitingYes
Lines quantity6 lines
Voice codecsG.711a, G.722, G.729a, iLBC
Security algorithms128-bit WEP, SSL/TLS, WPA
Supported network protocolsDHCP, TFTP, DNS, SCCP, SRST
Input voltage100 - 240 V
Dimensions (WxDxH)52 x 20 x 127 mm
Minimum system requirementsCisco Unified Communications Manager 4.1, 4.2, 4.3, 5.1, 6.0, 6.1, 7.0 + Cisco Unified Communications Manager Express 4.3 +
Input frequency50/60 Hz
Storage temperature (T-T)-30 - 60 °C
Operating temperature (T-T)0 - 40 °C
Operating relative humidity (H-H)10 - 95 %
Product typeIP Phone
Product colorGray
SafetyUL 60950, CSA 22.2 No.60950, EN 60950, IEC 60950, AS/NZS 60950, IEC 60529 (IP 54)
Certification47 CFR 15 B ICES-003 B EN 55022 B AS/NZS CISPR 22 B CISPR 22 B VCCI B EN 61000-3-2 EN 61000-3-3 KN 22 EN 55024 EN 50082-1 EN 61000-6-1 EN 300386 EN 60601-1-2 KN
Compliance industry standardsIEEE 802.11a, IEEE 802.11b, IEEE 802.11g, IEEE 802.1X, IEEE 802.11e
Weight and Dimensions IconWeight and Dimensions
Weight138 g

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