cisco7900 Cisco 7900 Unified IP Telephones

Unified Wireless IP Phone 7925G


Cisco Unified Wireless IP Phone 7925G

The power of the Cisco Unified Communications family of products extends throughout the enterprise, delivering a powerful, converged wireless solution with intelligent wireless infrastructure and an innovative product: the Cisco Unified Wireless IP Phone 7925G. This device delivers on-campus mobility to users using voice over wireless LAN (VoWLAN).

The Cisco Unified Wireless IP Phone 7925G is designed for users in rigorous workspaces as well as general office environments. It supports a wide range of features for enhanced voice communications, quality of service (QoS), and security. Some of the main benefits and highlights are:

  • IEEE 802.11 a/b/g radio
  • Two-inch color display
  • Bluetooth 2.0 support with Enhanced Data Rate (EDR) gives you more freedom
  • Hermetically sealed phone/display is IP54 rated, protects against dust, liquids, and moist wipes, and is ideal for deployment in more demanding environments
  • Ruggedized industrial design is compliant with military 810F standard and includes a rubber casing to shield the phone from damage caused by drops and shocks
  • Long battery life (up to 240 hours of standby time or 13 hours of talk time)
  • Built-in speakerphone for hands-free operation
  • Exceptional voice quality with support for wideband audio
  • Support for a wide range of applications through XML
  • Compact form factor gives you an IP phone that is easier to hold

Cisco 7925G Wireless IP Phone Details

Features
  • Six line appearances
  • Abbreviated dialing
  • Adjustable ringing and volume levels
  • Adjustable display brightness and timeout
  • Any-key answer
  • Audible and vibrating ringers
  • Auto-answer
  • Auto-detection of headset and auto-answer from headset
  • Automatic keypad lock
  • Barge
  • Callback
  • Call forward
  • Call history lists
  • Call park
  • Call pickup
  • Call timer
  • Call waiting
  • Caller ID
  • cBarge
  • Corporate directory
  • Conference
  • Direct transfer
  • Extension mobility service
  • Fast-dial service
  • Group call pickup
  • Hold
  • Hotkey for keypad lock, vibration and ring toggle, and voicemail access
  • Immediate divert
  • Join
  • Last-number redial
  • Malicious-caller ID
  • Message-waiting indicator
  • Meet-me conference
  • Multilevel precedence and preemption (MLPP)
  • Music on hold
  • Mute
  • Network profiles (automatic)
  • On- and off-network distinctive ringing
  • OPickUp
  • Personal directory
  • Predialing before sending
  • Privacy
  • Quality report tool (QRT)
  • Redial
  • Ring tone per line appearance
  • Service URL
  • Shared line
  • Time and date display
  • Transfer
Buttons
  • Two soft-key buttons to access screen-based applications, features, and functions
  • Application button that can support push-to-talk using XML
  • Mute
  • Speakerphone
  • Five-way navigation support
  • Volume control
  • Send button and Power/End button
Display 2 in. (5 cm) color display with 176 x 220 pixel resolution
LED Ring, message waiting, and charging LED
Protocol support
  • Skinny Client Control Protocol (SCCP)
  • Cisco Unified Communications Manager Versions 4.1, 4.2, 4.3, 5.1, 6.0, 6.1, 7.0 and later
  • Cisco Unified Communications Manager Express Version 4.3 and later
  • Cisco Unified Survivable Remote Site Telephony (SRST) Version 4.3 and later
Cisco Compatible Extension Cisco Compatible Extension Version 4
Extensible Language XML (eXtensible Markup Language)
Codec Support G.711a, G.711u, G.729a, G.729ab, G.722, and iLBC audio compression codecs
Configuration Options
  • Dynamic Host Configuration Protocol (DHCP) client or static configuration
  • Support for online firmware upgrades using Trivial File Transfer Protocol (TFTP)
  • Domain Name System (DNS)
Network Features
  • Cisco Discovery Protocol
  • Transparent secure roaming
  • Provisioning of network parameters through DHCP
Security Features
  • Certificates
  • Image authentication
  • Device authentication
  • File authentication
  • Signaling authentication
  • Secure Cisco Unified SRST
  • Media encryption using Secure Real-Time Protocol (SRTP)
  • Signaling encryption using Transport Layer Security (TLS) Protocol
  • Certificate authority proxy function (CAPF)
  • Secure profiles
  • Encrypted configuration files

Cryptography is not enabled by default and may only be enabled through a cryptographically enabled CUCM.

Provisioning and Management
  • Web server for configuration and statistics
  • Capability to disable local phone settings
  • QoS reporting: jitter, delay, dropped packets, and latency on a per-call basis
  • Real Time Control Protocol (RTCP) support and monitoring
  • Syslog
  • Wavelink Avalanche (http://www.wavelink.com)
Deployment Tools Integrated site survey tool
Language Support Bulgarian, Catalan, Chinese, Croatian, Czech, Danish, Dutch, English, Finnish, French, German, Greek, Hungarian, Italian, Japanese, Korean, Norwegian, Polish, Portuguese, Romanian, Russian, Serbian, Slovak, Slovenian, Spanish, and Swedish

Wireless Characteristics

Protocol IEEE 802.11a, 802.11b, and 802.11g
Frequency Band and Operating Channels
FCC: (-A)
  • 2.412-2.462 GHz; 11 channels
  • 5.15-5.25 GHz Unlicensed National Information Infrastructure (UNII-1), 5.25-5.35 GHz (UNII-2), and 5.725-5.825 GHz (UNII-3); 12 channels
  • 5. 47-5.725 GHz; 11 channels
Support Mode
  • IEEE 802.11a
  • IEEE 802.11b/g
  • Autosensing, IEEE 802.11b/g preferred over IEEE 802.11a
  • Autosensing, IEEE 802.11a preferred over IEEE 802.11b/g
  • Received signal strength indicator (RSSI) (default)
Data Rates
  • IEEE 802.11a: 6, 9, 12, 18, 24, 36, 48, and 54 Mbps
  • IEEE 802.11b: 1, 2, 5.5, and 11 Mbps
  • IEEE 802.11g: 6, 9, 12, 18, 24, 36, 48, and 54 Mbps
Non-overlapping Channels
  • IEEE 802.11a: Up to 23 (including radar channels)
  • IEEE 802.11b/g: 3 (Japan uses 4)

(Bluetooth 2.0 also makes use of the 2.4 GHz spectrum, so IEEE 802.11a is recommended when using Bluetooth 2.0)

Wireless Modulation
  • IEEE 802.11a: OFDM
  • IEEE 802.11b: Direct sequence spread spectrum (DSSS)
  • IEEE 802.11g: OFDM and DSSS
Receiver Sensitivity (typical)
  • IEEE 802.11a:
  • 6 Mbps: -91 dBm
  • 9 Mbps: -90 dBm
  • 12 Mbps: -88 dBm
  • 18 Mbps: -86 dBm
  • 24 Mbps: -82 dBm
  • 36 Mbps: -80 dBm
  • 48 Mbps: -77 dBm
  • 54 Mbps: -75 dBm
  • IEEE 802.11b:
  • 1 Mbps: -96 dBm
  • 2 Mbps: -95 dBm
  • 5.5 Mbps: -90 dBm
  • 11 Mbps: -87 dBm
  • v802.11g:
  • 6 Mbps: -91 dBm
  • 9 Mbps: -90 dBm
  • 12 Mbps: -87 dBm
  • 18 Mbps: -86 dBm
  • 24 Mbps: -82 dBm
  • 36 Mbps: -80 dBm
  • 48 Mbps: -77 dBm
  • 54 Mbps: -76 dBm
Transmitter Output Power
  • IEEE 802.11a OFDM:
  • 40 mW (16 dBm)
  • 32 mW (15 dBm)
  • 20 mW (13 dBm)
  • 8 mW (9 dBm)
  • 3.2 mW (5 dBm)
  • 1 mW (0 dBm)
  • IEEE 802.11b CCK:
  • 50 mW (17 dBm)
  • 20 mW (13 dBm)
  • 8 mW (9 dBm)
  • 3.2 mW (5 dBm)
  • 1 mW (0 dBm)
  • IEEE 802.11g OFDM:
  • 40 mW (16 dBm)
  • 32 mW (15 dBm)
  • 20 mW (13 dBm)
  • 8 mW (9 dBm)
  • 3.2 mW (5 dBm)
  • 1 mW (0 dBm)
Range
(stated ranges are from measured open-site range testing)
  • IEEE 802.11a:
  • 6 Mbps: 604ft (184 m)
  • 9 Mbps: 604 ft (184 m)
  • 12 Mbps: 551 ft (168 m)
  • 18 Mbps: 545 ft (166 m)
  • 24 Mbps: 512 ft (156 m)
  • 36 Mbps: 420 ft (128 m)
  • 48 Mbps: 322 ft (98 m)
  • 54 Mbps: 289 ft (88 m)
  • IEEE 802.11b:
  • 1 Mbps: 1,010 ft (308 m)
  • 2 Mbps: 951 ft (290 m)
  • 5.5 Mbps: 919 ft (280 m)
  • 11 Mbps: 902 ft (275 m)
  • IEEE 802.11g:
  • 6 Mbps: 709 ft (216 m)
  • 9 Mbps: 650 ft (198 m)
  • 12 Mbps: 623 ft (190 m)
  • 18 Mbps: 623 ft (190 m)
  • 24 Mbps: 623 ft (190 m)
  • 36 Mbps: 495 ft (151 m)
  • 48 Mbps: 413 ft (126 m)
  • 54 Mbps: 394 ft (120 m)

Ranges and actual throughput vary based on numerous environmental factors so individual performance may differ.

Access Point Support
  • Cisco 500 Series Wireless Express Access Points
  • Cisco 1000 Series Lightweight Access Point
  • Cisco Aironet 1100 Series Access Point
  • Cisco Aironet 1130 AG Series Cisco Aironet 1200 Series
  • Cisco Aironet 1230 AG Series
  • Cisco Aironet 1240 AG Series
  • Cisco Aironet 1250 Series
  • Cisco Aironet 1300 Series
  • Required versions -
  • Cisco Wireless LAN Controller (lightweight); Version 4.0.217.0 minimum, Version 5.1.151.0 or later recommended
  • Cisco IOS® Software access points (autonomous); Version 12.3(8)JEA minimum, Version 12.3(4g)JA1 or later recommended
Wireless Security
  • Authentication:
  • Cisco Wireless Security Suite IEEE 802.1X
  • Lightweight Extensible Authentication Protocol (LEAP) Authentication
  • Protected Extensible Authentication Protocol (PEAP) MS-CHAP Version 2
  • Extensible Authentication Protocol and Flexible Authentication with Secure Tunneling (EAP-FAST)
  • Extensible Authentication Protocol and Transport Layer Security (EAP-TLS)
  • Wi-Fi Protected Access (WPA) Versions 1 and 2: Personal and Enterprise
  • Cisco Centralized Key Management (CKM)
  • Encryption:
  • 40- and 128-bit static Wired Equivalent Privacy (WEP)
  • Temporal Key Integrity Protocol (TKIP) and Message Integrity Check (MIC)
  • Advanced Encryption Standard (AES)
QoS
  • IEEE 802.11e and Wi-Fi Multimedia (WMM)
  • Traffic Specification (TSPEC)
  • Enhanced Distributed Channel Access (EDCA)
  • QoS Basic Service Set (QBSS)
Radar Detection Dynamic frequency selection (DFS) and transmit power control (TPC) according to IEEE 802.11h
Power Save Mode
  • U-APSD
  • Power Save Poll (PS-Poll)

Specifications

Dimensions 5.0in. H x 2.0in. W x 0.8in. D (12.7 x 5.2 x 2.0 cm)
Weight 4.8 to 5.0 oz (138 to143g) depending on battery pack
Battery
  • Standard lithium-ion (Li-ion) battery life: up to 9.5 hours talk time and 180 hours standby
  • Extended Li-ion battery life: up to 13 hours talk time and 240 hours standby
  • Actual battery life varies significantly based on environmental factors and Bluetooth use
Input Power
  • Phone: 100 to 240 VAC, ~0.2A, and 50 to 60 Hz
  • AC adapters (by geographical region)
Operating Temperature 32 to 104°F (0 to 40°C)
Storage Temperature -22 to 140°F (-30 to 60°C)
Relative Humidity 10 to 95% (non-condensing)
Vibration 1.5 Grms maximum, 0.1 in. (2.5 mm) double amplitude at 0.887 octaves per minute from 5-500-5 Hz sweep, and 10-minute dwell on three major peaks in each of the three major mutually perpendicular axes
Thermal Shock -22°F (-30°C) 24 hours; 158°F (70°C) 24 hours
Altitude Certified for operation: 0 to 6500 ft (0 to 2 km)
Endurance
  • IP54
  • MIL-STD-810F, Method 516.5, Procedure I
Headset
  • Wireless: Bluetooth 2.0
  • Wired: 2.5 mm (4-conductor tri-band)
Connector Mini USB

Certification and Compliance

Safety
  • UL 60950
  • CSA 22.2 No.60950
  • EN 60950
  • IEC 60950
  • AS/NZS 60950
  • IEC 60529 (IP 54)
Electromagnetic compatibility and electromagnetic interference (EMC/EMI)
  • 47 CFR Part 15 Class B
  • ICES-003 Class B
  • EN 55022 Class B
  • AS/NZS CISPR 22 Class B
  • CISPR 22 Class B
  • VCCI Class 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 Immunity Series
Telecom
  • FCC Part 68 (CFR) (HAC)
  • NZ PTC 220 DR
  • TIA 810-B and TIA 920-A
Radio USA: FCC Part 15.247 (2.4 GHz), FCC Part 15.407 (5 GHz), and FCC Part 2
RF Exposure
  • OET-65C (01-01)
  • ANSI C95.1 (91)
  • RSS-102
  • ACA Radio Communications (Electromagnetic Radiation - Human Exposure)
  • Standard 2003
  • EN 50360
  • EN 301489-1
  • EN 301489-17