Cisco 7925G - Unified Wireless IP Phone VoIP Instruction Manual

CHAPTER
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1
Overview of the Cisco Unified Wireless
IP Phone 7925G, 7925G-EX, and 7926G
The Cisco Unified Wireless IP Phone 7925G, 7925G-EX, and 7926G provides wireless voice
communication over an IP network. Like traditional analog telephones, you can place and receive phone
calls and access features such as hold, transfer, and speed dial. In addition, because the phone connects
to your wireless local area network (WLAN), you can place and receive phone calls from anywhere in
your wireless environment.
This chapter includes the following sections:
•Understanding the Cisco Unified Wireless IP Phone 7925G and 7926G, page 1-1
•Understanding the Cisco Unified Wireless IP Phone 7925G-EX, page 1-2
•Cisco Unified Wireless IP Phone 7925G, 7925G-EX, and 7926G Components, page 1-3
•Understanding Bluetooth Technology, page 1-6
•Features Supported on the Cisco Unified Wireless IP Phone 7925G, 7925G-EX, and 7926G,
page 1-8
•Understanding Security Features for Cisco Unified IP Phones, page 1-10
•Overview of Configuring and Installing the Cisco Unified Wireless IP Phone 7925G, 7925G-EX,
and 7926G, page 1-15
Understanding the Cisco Unified Wireless IP Phone 7925G and
7926G
The Cisco Unified Wireless IP Phone 7925G and 7926G is an 802.11 dual band wireless device that
provides comprehensive voice communications in conjunction with Cisco Unified Communications
Manager and Cisco Aironet 802.11b/g and Cisco Aironet 802.11a Access Points (APs) in a private
business communications network.
The phone is a qualified Bluetooth wireless device (Qualified Device ID [QDID] B014396). The phone
provides voice communication over the same wireless LAN that your computer uses, allowing you to
place and receive phone calls, put calls on hold, transfer calls, make conference calls, and so on.
This phone model, like other network devices, must be configured and managed. This phone encodes
G.711a, G.711u, G.729a, G.729ab, and G.722/iLBC codecs, and decodes G.711a, G711b, G.711u,
G.729, G729a, G729b, and G729ab codecs. The phone also supports uncompressed wideband (16 bits,
16 kHz) audio.

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Chapter 1 Overview of the Cisco Unified Wireless IP Phone 7925G, 7925G-EX, and 7926G
Understanding the Cisco Unified Wireless IP Phone 7925G-EX
The Cisco Unified Wireless IP Phone 7925G and 7926G is hearing aid compatible (HAC) but does not
have any TTY features. It also has a centered “dot” or “nib” on the 5 key that is a tactile identifier.
The physical characteristics include:
•Resistance to damage from dropping the phone
•Tolerance of anti-bacterial and alcohol-based wipes
•Latex and lead free
•Resistance against liquid splashes
•Dust resistance
•Shock proof and vibration proof
•USB 1.1 interface
Understanding the Cisco Unified Wireless IP Phone 7925G-EX
Your Cisco Unified Wireless IP Phone 7925G-EX is an Atmospheres Explosibles (ATEX) Zone 2/Class
22 and Canadian Standards Association (CSA) Division 2/Class 1 certified full-feature telephone. The
phone is certified for use in potentially explosive environments in the gas, oil, and chemical production
fields as well as dust-filled environments.
The phone is a qualified Bluetooth wireless device (Qualified Device ID [QDID] B014396). The phone
provides voice communication over the same wireless LAN that your computer uses, allowing you to
place and receive phone calls, put calls on hold, transfer calls, make conference calls, and so on.
The Cisco Unified Wireless IP Phone 7925G-EX is an 802.11 dual band wireless device that provides
comprehensive voice communications in conjunction with Cisco Unified Communications Manager
and Cisco Aironet 802.11b/g and Cisco Aironet 802.11a Access Points (APs) in a private business
communications network.
This phone model, like other network devices, must be configured and managed. This phone encodes
G.711a, G.711u, G.729a, G.729ab, and G.722/iLBC codecs, and decodes G.711a, G711b, G.711u,
G.729, G729a, G729b, and G729ab codecs. The phone also supports uncompressed wideband (16 bits,
16 kHz) audio.
The Cisco Unified Wireless IP Phone 7925G-EX is hearing aid compatible (HAC) but does not have any
TTY features. It also has a centered “dot” or “nib” on the 5 key that is a tactile identifier.
The physical characteristics include:
•Atmospheres Explosibles (ATEX) Zone 2/Class 22 certification prevents ignition of surrounding gas
vapors by the phone.
•Canadian Standards Association (CSA) Division 2/Class 1 certification provides access to mobile
collaborative communications.
•Industry-standard yellow styling offers fast recognition in emergency situations.
•Ingress Protection 64 (IP 64) level protection indicating a dust tight equipment which is protected
against splashing water.
•The large 2-inch color (176 x 220 pixels) display makes viewing easy.
•Resistance to damage from dropping the phone
•Tolerance of anti-bacterial and alcohol-based wipes
•Latex and lead free

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Cisco Unified Wireless IP Phone 7925G, 7925G-EX, and 7926G Components
•Shock proof and vibration proof
•USB 1.1 interface
Note • ATEX Zone 2 certification—Zone 2 is defined as an area in which an explosive gas atmosphere is
not likely to occur in normal operation and if it does occur, is likely to do so only infrequently and
will exist for a short period only (for example, less than 10 hours per year).
•CSA Class 1 Division II certification—Class 1 is a location where a quantity of flammable gas or
vapor sufficient to produce an explosive or ignitable mixture may be present in the air. Division II
is a location where a classified hazard does not normally exist but is possible under abnormal
conditions.
Cisco Unified Wireless IP Phone 7925G, 7925G-EX, and 7926G
Components
Figure 1-1 shows the Cisco Unified Wireless IP Phone 7925G. The Cisco Unified Wireless IP Phone
7925G-EX and 7926G are similar in appearance to the Cisco Unified Wireless IP Phone 7925G.
Table 1-1 describes the functions of the keys on the phones.
Figure 1-1 Cisco Unified Wireless IP Phone 7925G
18
2
3
199793
15
16
17
1
4
6
5
7
8
+
9
10
12
11
13
14

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Chapter 1 Overview of the Cisco Unified Wireless IP Phone 7925G, 7925G-EX, and 7926G
Cisco Unified Wireless IP Phone 7925G, 7925G-EX, and 7926G Components
Table 1-1 Cisco Unified Wireless IP Phone 7925G, 7925G-EX, and 7926G Components
1Indicator light
(LED)
Provides these indications:
•Solid red—Phone is connected to AC power source and battery is charging.
•Solid green—Phone is connected to AC power source and battery is fully
charged.
•Fast blinking red—Incoming call. Phone can be charging or fully charged.
•Slow blinking red—Voice message. When connected to AC power source,
red light displays longer than when phone is using only the battery.
•Slow blinking green—Phone is using only battery power. Phone is registered
with the wireless network and is within the service coverage area.
2Headset port
cover
Cover for the headset port.
3Speaker button Toggles the speaker mode on or off for the phone.
4Right softkey
button
Activates the Options menu for access to the list of softkeys. Sometimes displays
a softkey label.
5Navigation
button
Accesses these menus and lists from the main screen:
Directory
Line View
Settings
Services
Allows you to scroll up and down menus to highlight options and to move left
and right through phone numbers and text entries.
6Select button Activates the Help menu from the main screen.
Allows you to select a menu item, a softkey, a call, or an action.
7Power/End
button (red)
Turns the phone on or off, silences a ringing call, or ends a connected call.
When using menus, acts as a shortcut to return to the main screen.

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Cisco Unified Wireless IP Phone 7925G, 7925G-EX, and 7926G Components
8Pound (#) key Toggles between locking and unlocking the keypad.
Allows you to enter these special characters when you are entering text:
# ? ( ) [ ] { }
9Zero (0) key Enters “0” when dialing a number. Allows you to enter a space or these special
characters when you are entering text:
+ , . ‘ “ | _ ~ ’
Note When entering text or dialing an international number, use the plus sign
(+).
10 Asterisk (*)
key
Toggles between Ring and Vibrate mode.
Allows you to enter these special characters when you are entering text:
* - / = \ : ;
11 Keypad Allows you to dial numbers, enter letters, and choose menu items by number.
Press and hold key 1 to access your voice messaging system.
12 One (1) key Enters “1” when dialing a number. Allows you to access the voice messaging
system.
Allows you to enter these special characters when you are entering text:
! @ < > $ % ^ &
13 Answer/Send
button (green)
Allows you to answer a ringing call or, after dialing a number, to place the call.
14 Left softkey
button
Activates the softkey option displayed on the screen. When customized by the
phone administrator or user, allows direct access to the Phone Book or voice
messages.
15 Mute button Toggles the mute feature on or off.
16 Volume button When the phone is idle, controls the ring volume, turn on the vibrate option, or
turn off the ring.
When an incoming call is ringing, controls the ring volume. Press this button
once to silence the ring for the call.
During a call, controls the speaker volume for the handset, headset, and speaker
mode.
Table 1-1 Cisco Unified Wireless IP Phone 7925G, 7925G-EX, and 7926G Components (continued)
+

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Chapter 1 Overview of the Cisco Unified Wireless IP Phone 7925G, 7925G-EX, and 7926G
Understanding Bluetooth Technology
Related Topics
•Features Supported on the Cisco Unified Wireless IP Phone 7925G, 7925G-EX, and 7926G,
page 1-8
•Overview of Configuring and Installing the Cisco Unified Wireless IP Phone 7925G, 7925G-EX,
and 7926G, page 1-15
Understanding Bluetooth Technology
The Cisco Unified Wireless IP Phone 7925G, 7925G-EX, and 7926G is a full-feature telephone and a
qualified Bluetooth wireless device (Qualified Device ID [QDID] B014396) and provides voice
communication over the same wireless LAN that your computer uses. In addition to basic call-handling
features, your phone operates with Bluetooth wireless headsets, including certain handsfree call features.
Bluetooth devices operate in the unlicensed Industrial Scientific Medicine (ISM) band of 2.4GHz, which
is the same as the 802.11b/g band. This unlicensed band in most countries includes the frequency range
from 2400 to 2483.5 MHz. Bluetooth enables low bandwidth wireless connections within a range of 10
meters. The best performance is in the 1 to 2 meter range. Synchronous voice channels are provided by
using circuit switching and asynchronous data channels are provided by using packet switching.
Bluetooth uses an integrated Adaptive Frequency Hopping (AFH) to avoid interference. Every 625
microsecond (1/1,000,000 of a second) the channel changes or hops to another frequency within the 2402
to 2480 MHz range. This computes to 1600 hops every second.
The Cisco Unified Wireless IP Phone 7925G, 7925G-EX, and 7926G contains a Bluetooth module and
802.11 WLAN module. This coexistence greatly reduces and avoids radio interference between the
Bluetooth and 802.11bg radio.
Bluetooth devices fit into to three different power classes, as shown in Table 1-2.
Bluetooth Class 2.0 with Extended Data Rate (EDR) is a short-range wireless technology that is
supported by the Cisco Unified Wireless IP Phone 7925G, 7925G-EX, and 7926G. The phones supports
the Hands-Free Profile version 1.5.
17 Application
button
Configurable button that is used with XML applications, such as Push to Talk or
Directory services. See “Setting Up Services” section on page 7-18.
18 Barcode
scanner
Use with Java MIDlet applications to allow you to scan barcodes.
Note Available only on the Cisco Unified Wireless IP Phone 7926G
Table 1-1 Cisco Unified Wireless IP Phone 7925G, 7925G-EX, and 7926G Components (continued)
Table 1-2 Bluetooth Maximum Permitted Transmit Power and Range by Class
Class Maximum Permitted Transmit Power (mW, dBm) Range
Class 1 100 mW, 20 dBm Up to 100 meters
Class 2 2.5 mW, 4 dBm Up to 10 meters
Class 3 1 mW, 0 dBm Up to 1 meter

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Understanding Bluetooth Technology
There can be a potential interference issues. It is recommended that you:
•Use 802.11a that operates in the 5 GHz band.
•Reduce the proximity of other 802.11b/g devices, Bluetooth devices, microwave ovens, and large
metal objects.
•Use the Cisco Unified Wireless IP Phone 7925G, 7925G-EX, and 7926G on the same side of the
body as the Bluetooth-enabled headset.
Caution Use CSA or ATEX qualified bluetooth accessories with the Cisco Unified IP Phone 7925G-EX in
hazardous environments.
For information about pairing headsets, see Using a Headset, page 3-13.
For more information about WLAN configuration and Bluetooth, see Site Survey Verification,
page 2-20. Cisco Unified Wireless IP Phone 7925G, 7925G-EX, and 7926G User Guide contains
user-specific information.
For more information about Bluetooth and hands-free profiles, see http://www.bluetooth.com.
Handsfree Profile
Your phone supports certain features of the Handsfree Profile, which is a standard set of features that
enable users of handsfree devices (such as Bluetooth wireless headsets) to perform certain tasks without
having to handle the phone, allowing users to be “handsfree.” For example, instead of pressing Redial
on your phone, you can redial a number from your Bluetooth wireless headset according to instructions
from the headset manufacturer.
Caution Use CSA or ATEX qualified bluetooth accessories with the Cisco Unified IP Phone 7925G-EX in
hazardous environments.
These handsfree features apply to Bluetooth wireless headsets used with your Cisco Unified Wireless
IP Phone 7925G, 7925G-EX, and 7926G:
•Redial—Recalls the last number dialed.
•Reject incoming call—Uses the iDivert option to direct the call to voicemail.
•Three-way calling—When there is an active call and another incoming call or call on hold, you may
choose to handle the calls in one of these ways:
– End the active call and answer or resume a waiting call.
– Put the active call on hold and answer or resume a waiting call.
Note Handsfree devices may differ in how features are activated. Handsfree device manufacturers may also
use different terms when referring to the same feature.
For more information on using handsfree features, see the documentation provided by the device
manufacturer.

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Features Supported on the Cisco Unified Wireless IP Phone 7925G, 7925G-EX, and 7926G
Features Supported on the Cisco Unified Wireless
IP Phone 7925G, 7925G-EX, and 7926G
The Cisco Unified Wireless IP Phone 7925G, 7925G-EX, and 7926G functions much like traditional IP
phones allowing you to place and receive telephone calls while connected to the wireless LAN. In
addition to traditional phone features, the Cisco Unified Wireless IP Phone 7925G, 7925G-EX, and
7926G includes features that enable you to administer and monitor the phone as a network device.
Caution This product is not a medical device and may use an unlicensed frequency band that is susceptible to
interference from other devices or equipment.
This section provides information about these topics:
•Feature Overview, page 1-8
•Telephony Features, page 1-9
•Understanding Security Profiles, page 1-13
•Network Settings Configuration, page 1-9
•Feature Information for Users, page 1-10
Feature Overview
The Cisco Unified Wireless IP Phone 7925G, 7925G-EX, and 7926G provides traditional telephony
functionality, such as call forward and call transfer, call pickup, redial, speed dial, conference calls, and
voice message system access, as well as these features:
•Bluetooth Class 2 technology for headsets that support Bluetooth
•Six-line appearance
•Adjustable ring and volume levels
•Adjustable display brightness and time outs
•Auto-detection of headset and auto-answer from the headset
•Wireless web access to your phone number and the corporate directory
•Access to network data, XML applications, and web-based services
•Online customizing of phone features and services from the User Options web pages
•An online help system that displays information on the phone screen

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Features Supported on the Cisco Unified Wireless IP Phone 7925G, 7925G-EX, and 7926G
Related Topics
•Configuring Network Profiles, page 4-8
•Configuring Features, Templates, Services, and Users, page 7-1
Telephony Features
You can use Cisco Unified Communications Manager Administration to set up phone registration
criteria and calling search spaces, to configure corporate directories and services, and to modify phone
button templates. See “Telephony Features Available for the Phone” section on page 7-2 and Cisco
Unified Communications Manager Administration Guide for additional information.
For more information about the Cisco Unified Communications Manager Administration, see Cisco
Unified Communications Manager documentation suite at
http://www.cisco.com/en/US/products/sw/voicesw/ps556/tsd_products_support_series_home.html
You can also use the context-sensitive help available within the application for guidance.
Related Topic
•Telephony Features Available for the Phone, page 7-2
Network Settings Configuration
Like other network devices, you must configure IP phones to access Cisco Unified Communications
Manager and the rest of the IP network using the wireless LAN. There are two methods for configuring
network settings such as DHCP, TFTP, and for configuring wireless settings for the phone.
•Cisco Unified Wireless IP Phone 7925G, 7925G-EX, and 7926G web pages
•Network Profiles menu on the Cisco Unified Wireless IP Phone 7925G, 7925G-EX, and 7926G
You can access the configuration web pages by using a browser from your PC. For more information,
see Using the Cisco Unified Wireless IP Phone 7925G, 7925G-EX, and 7926G Web Pages, page 4-1.
You can also configure network settings on the phone itself. For more information about configuring
features from the phone, see Chapter 5, “Configuring Settings on the Cisco Unified Wireless IP
Phone 7925G, 7925G-EX, and 7926G.”
Because the Cisco Unified Wireless IP Phone is a network device, you can obtain detailed status
information about it. This information can assist you in troubleshooting problems that users might
encounter when using their IP phones. See Chapter 9, “Monitoring the Cisco Unified Wireless IP Phone
Remotely,” for tips on using this information.
Related Topics
•Using the Cisco Unified Wireless IP Phone 7925G, 7925G-EX, and 7926G Web Pages, page 4-1
•Configuring Settings on the Cisco Unified Wireless IP Phone 7925G, 7925G-EX, and 7926G,
page 5-1
•Monitoring the Cisco Unified Wireless IP Phone Remotely, page 9-1

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Understanding Security Features for Cisco Unified IP Phones
Feature Information for Users
If you are a system administrator, you are the primary source of information for Cisco Unified Wireless
IP Phone users in your network or company. To ensure that you distribute the most current feature and
procedural information, familiarize yourself with Cisco Unified Wireless IP Phone 7925G, 7925G-EX,
and 7926G documentation. Make sure you visit the Cisco Unified IP Phone web site:
http://www.cisco.com/en/US/products/hw/phones/ps379/tsd_products_support_maintain_and_operate.
html
From this site, you can view additional phone documentation.
In addition to providing documentation, it is important to inform users about available Cisco Unified IP
Phone features—including features specific to your company or network—and about how to access and
customize those features, if appropriate.
For a summary of the key information that you can provide to phone users, see Appendix A, “Providing
Information to Users By Using a Website.”
Related Topic
•Providing Information to Users By Using a Website, page A-1
Understanding Security Features for Cisco Unified IP Phones
Implementing security in a wireless network protects against data tampering to Cisco Unified
Communications Manager data, call signaling, and media stream. It also reduces the chances for identity
theft. To reduce the threats, the Cisco wireless LAN (WLAN) provides options for user authentication
with servers and for encrypting communications streams between phones and network devices.
For information about supported security options for the Cisco Unified Wireless IP Phone 7925G,
7925G-EX, and 7926G, see “Authentication Methods” section on page 2-15.
For information about security features supported by Cisco Unified Communications Manager and Cisco
Unified IP Phones, see “Overview of Supported Security Features” section on page 1-11.
Table 1-3 provides additional information about security topics.
Ta b l e 1- 3 S e c u r i t y To p i c s
Topic Reference
Detailed explanation of security, including set up,
configuration, and troubleshooting information
for Cisco Unified Communications Manager and
Cisco Unified IP Phones
See Cisco Unified Communications Manager
Security Guide
Security features supported on the Cisco Unified
IP Phone
See “Overview of Supported Security Features”
section on page 1-11
Restrictions regarding security features See “Security Restrictions” section on page 1-15
Viewing a security profile name when running
Cisco Unified Communications Manager 5.0 or
later
See “Understanding Security Profiles” section on
page 1-13
Identifying phone calls for which security is
implemented
See “Identifying Authenticated, Encrypted, and
Protected Phone Calls” section on page 1-14