CH A P T E R 1 An Overview of the Cisco Unified Wireless IP Phone 7921G The Cisco Unified Wireless IP Phone 7921G provides wireless voice communication over an Internet Protocol (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 LAN, you can place and receive phone calls from anywhere in your wireless environment.
Chapter 1 Understanding the Cisco Unified Wireless IP Phone 7921G An Overview of the Cisco Unified Wireless IP Phone 7921G coder-decoders (codecs). You must configure and manage a wireless IP phone like other IP phones and wireless devices on your network. The wireless IP phone supports multiple lines and most of the IP phone features of other Cisco Unified IP Phones. Figure 1-1 shows the Cisco Unified Wireless IP Phone 7921G. The table that follows describes the functions of the keys on the phone.
Chapter 1 1 An Overview of the Cisco Unified Wireless IP Phone 7921G Understanding the Cisco Unified Wireless IP Phone 7921G Indicator 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.
Chapter 1 Understanding the Cisco Unified Wireless IP Phone 7921G 5 Navigation button An Overview of the Cisco Unified Wireless IP Phone 7921G 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. 6 Select button Activates the Help menu from the main screen. Allows you to select a menu item, a softkey, a call, or an action.
Chapter 1 An Overview of the Cisco Unified Wireless IP Phone 7921G Understanding the Cisco Unified Wireless IP Phone 7921G 12 One (1) key Enters “1” when dialing a number. Allows you to access the voice messaging system. 1@ 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.
Chapter 1 An Overview of the Cisco Unified Wireless IP Phone 7921G Features Supported on the Cisco Unified Wireless IP Phone 7921G Features Supported on the Cisco Unified Wireless IP Phone 7921G The Cisco Unified Wireless IP Phone 7921G functions much like traditional IP phones allowing you to place and receive telephone calls while connected to the wireless LAN.
Chapter 1 An Overview of the Cisco Unified Wireless IP Phone 7921G Features Supported on the Cisco Unified Wireless IP Phone 7921G Related Topics • Configuring Network Profiles, page 4-10 • Configuring Features, Templates, Services, and Users, page 6-1 Configuring Telephony Features You can use the Cisco Unified CallManager Administration application to set up phone registration criteria and calling search spaces, and to modify softkey templates, among other tasks.
Chapter 1 An Overview of the Cisco Unified Wireless IP Phone 7921G Features Supported on the Cisco Unified Wireless IP Phone 7921G For information about supported security options for the Cisco Unified Wireless IP Phone 7921G, see the “Authentication Mechanisms in the Wireless Network” section on page 2-19. For information about security features supported by Cisco Unified CallManager and Cisco Unified IP Phones, see the “Understanding Security Features for Cisco Unified IP Phones” section on page 1-10.
Chapter 1 An Overview of the Cisco Unified Wireless IP Phone 7921G Features Supported on the Cisco Unified Wireless IP Phone 7921G • Configuring Settings on the Cisco Unified Wireless IP Phone 7921G, page 5-1 • Monitoring the Cisco Unified Wireless IP Phone Remotely, page 8-1 Providing Users with Feature Information 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.
Chapter 1 Understanding Security Features for Cisco Unified IP Phones An Overview of the Cisco Unified Wireless IP Phone 7921G Understanding Security Features for Cisco Unified IP Phones Implementing security in the Cisco Unified CallManager system prevents identity theft of the phone and Cisco Unified CallManager server, and also prevents data, call signaling, and media stream tampering.
Chapter 1 Table 1-1 An Overview of the Cisco Unified Wireless IP Phone 7921G Understanding Security Features for Cisco Unified IP Phones Cisco Unified IP Phone and Cisco Unified CallManager Security Topics (continued) Topic Reference Security and phone configuration files See the “Phone Configuration Files and Profile Files” section on page 2-25 Changing the TFTP Server 1 or TFTP Server 2 See the “Configuring Network Profiles” section on option on the phone when security is implemented page 4-10 Ite
Chapter 1 Understanding Security Features for Cisco Unified IP Phones Table 1-2 An Overview of the Cisco Unified Wireless IP Phone 7921G Overview of Security Features Feature Description Image authentication Signed binary files (with the extension .sbn) prevent tampering with the firmware image before it is loaded on a phone. Tampering with the image causes a phone to fail the authentication process and reject the new image.
Chapter 1 Table 1-2 An Overview of the Cisco Unified Wireless IP Phone 7921G Understanding Security Features for Cisco Unified IP Phones Overview of Security Features (continued) Feature Description Secure SRST reference After you configure a SRST reference for security and then reset the dependent devices in Cisco Unified CallManager Administration, the TFTP server adds the SRST certificate to the phone cnf.xml file and sends the file to the phone.
Chapter 1 Understanding Security Features for Cisco Unified IP Phones Table 1-2 An Overview of the Cisco Unified Wireless IP Phone 7921G Overview of Security Features (continued) Feature Description Optional disabling of the web server functionality for a phone You can prevent access to a phone’s web page, which displays a variety of operational statistics for the phone.
Chapter 1 An Overview of the Cisco Unified Wireless IP Phone 7921G Understanding Security Features for Cisco Unified IP Phones To view the security mode that is set for the phone, from the phone screen, choose Settings > Device Information > Security > Security Mode. For more information, see the “Viewing Security Information” section on page 7-2.
Chapter 1 An Overview of the Cisco Unified Wireless IP Phone 7921G Overview of Configuring and Installing the Cisco Unified Wireless IP Phone 7921G Security Restrictions When using a phone that is not configured for encryption, the user cannot barge into an encrypted call. When barge fails in this case, a reorder tone (fast busy tone) plays on the barge initiator’s phone. If the phone is configured for encryption, the user can barge into an authenticated or non-secure call from the encrypted phone.
Chapter 1 An Overview of the Cisco Unified Wireless IP Phone 7921G Overview of Configuring and Installing the Cisco Unified Wireless IP Phone 7921G Configuring the Cisco Unified Wireless IP Phone 7921G in Cisco Unified CallManager To add phones to the Cisco Unified CallManager database, you can use: • Auto-registration • Cisco Unified CallManager Administration • Bulk Administration Tool (BAT) • BAT and the Tool for Auto-Registered Phones Support (TAPS) For more information about these choices, se
Chapter 1 An Overview of the Cisco Unified Wireless IP Phone 7921G Overview of Configuring and Installing the Cisco Unified Wireless IP Phone 7921G Table 1-3 Checklist for Configuring the Cisco Unified Wireless IP Phone 7921G in Cisco Unified CallManager Task Purpose For More Information 1. Gather the following information about the phone: Provides list of configuration requirements for setting up phones. Refer to the Cisco Unified CallManager System Guide, Cisco Unified IP Phone chapter.
Chapter 1 Table 1-3 An Overview of the Cisco Unified Wireless IP Phone 7921G Overview of Configuring and Installing the Cisco Unified Wireless IP Phone 7921G Checklist for Configuring the Cisco Unified Wireless IP Phone 7921G in Cisco Unified CallManager (continued) Task Purpose For More Information 3. Customize softkey templates (optional). Adds, deletes, or changes order of softkey features that display in the Options menu to meet feature usage needs.
Chapter 1 An Overview of the Cisco Unified Wireless IP Phone 7921G Overview of Configuring and Installing the Cisco Unified Wireless IP Phone 7921G Table 1-3 Checklist for Configuring the Cisco Unified Wireless IP Phone 7921G in Cisco Unified CallManager (continued) Task Purpose 5. Add and configure directory numbers (lines) on the phone by completing these required fields in the Directory Number Configuration window.
Chapter 1 Table 1-3 An Overview of the Cisco Unified Wireless IP Phone 7921G Overview of Configuring and Installing the Cisco Unified Wireless IP Phone 7921G Checklist for Configuring the Cisco Unified Wireless IP Phone 7921G in Cisco Unified CallManager (continued) Task Purpose For More Information 8. Add user information by configuring required fields: (optional). Adds user information to the global directory for Cisco Unified CallManager.
Chapter 1 An Overview of the Cisco Unified Wireless IP Phone 7921G Overview of Configuring and Installing the Cisco Unified Wireless IP Phone 7921G Installing the Cisco Unified Wireless IP Phone 7921G After you have added the phones to the Cisco Unified CallManager database, you can complete the phone installation. You (or the phone users) can install the phone at the users’s location.
Chapter 1 Table 1-4 An Overview of the Cisco Unified Wireless IP Phone 7921G Overview of Configuring and Installing the Cisco Unified Wireless IP Phone 7921G Checklist for Installing the Cisco Unified Wireless IP Phone 7921G Task Purpose For More Information 1. Assemble the phone components and charge the battery. Charges the phone for use. See Providing Power to the Phone, page 3-10. 2.
