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... Information 1-6 Understanding Security Features for Cisco Unified IP Phones 1-7 Overview of Supported Security Features 1-8 Understanding Security Profiles 1-10 Identifying Encrypted and Authenticated Phone Calls 1-11 Security Restrictions 1-11 Overview of Configuring and Installing the Cisco Unified Wireless IP Phone 7921G 1-11 Configuring the Cisco Unified Wireless IP Phone 7921G in Cisco Unified Communications Manager 1-12 Installing the Cisco Unified Wireless IP Phone 7921G 1-12 Overview of the VoIP Wireless Network 2-1 Understanding the Wireless LAN 2-1 Understanding WLAN Standards and...
... Information 1-6 Understanding Security Features for Cisco Unified IP Phones 1-7 Overview of Supported Security Features 1-8 Understanding Security Profiles 1-10 Identifying Encrypted and Authenticated Phone Calls 1-11 Security Restrictions 1-11 Overview of Configuring and Installing the Cisco Unified Wireless IP Phone 7921G 1-11 Configuring the Cisco Unified Wireless IP Phone 7921G in Cisco Unified Communications Manager 1-12 Installing the Cisco Unified Wireless IP Phone 7921G 1-12 Overview of the VoIP Wireless Network 2-1 Understanding the Wireless LAN 2-1 Understanding WLAN Standards and...
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... VoIP WLAN Configuration 2-18 Wireless Network Requirements for VoIP 2-19 Configuring APs for Voice 2-19 Configuration Tip for Cisco Aironet APs 2-20 Site Survey Verification 2-20 Site Survey Verification Tasks 2-20 Neighbor List Utility 2-21 Site Survey Utility 2-22 Setting Up the Cisco Unified Wireless IP Phone 7921G 3-1 Before You Begin 3-1 Network Requirements 3-1 Methods for Adding Phones to Cisco Unified Communications Manager 3-2 Adding Phones...
... VoIP WLAN Configuration 2-18 Wireless Network Requirements for VoIP 2-19 Configuring APs for Voice 2-19 Configuration Tip for Cisco Aironet APs 2-20 Site Survey Verification 2-20 Site Survey Verification Tasks 2-20 Neighbor List Utility 2-21 Site Survey Utility 2-22 Setting Up the Cisco Unified Wireless IP Phone 7921G 3-1 Before You Begin 3-1 Network Requirements 3-1 Methods for Adding Phones to Cisco Unified Communications Manager 3-2 Adding Phones...
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... intended to be administration-level tasks and are not intended for Cisco Unified Communications Manager Release 7.0 xi This guide is organized as follows: Chapter Chapter 1, "Overview of the Cisco Unified Wireless IP Phone 7921G" Chapter 2, "Overview of the VoIP Wireless Network" Description Provides a conceptual overview and description of the Cisco Unified Wireless IP Phone 7921G and provides an overview of the tasks involve configuring network settings...
... intended to be administration-level tasks and are not intended for Cisco Unified Communications Manager Release 7.0 xi This guide is organized as follows: Chapter Chapter 1, "Overview of the Cisco Unified Wireless IP Phone 7921G" Chapter 2, "Overview of the VoIP Wireless Network" Description Provides a conceptual overview and description of the Cisco Unified Wireless IP Phone 7921G and provides an overview of the tasks involve configuring network settings...
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... Cisco Unified Wireless IP Phone 7921G and other key components of a VoIP network in WLANs, page 2-14 • VoIP WLAN Configuration, page 2-18 • Site Survey Verification, page 2-20 Understanding the Wireless LAN With the introduction of wireless communication, wireless IP phones can provide voice communication within the corporate wireless local area network (WLAN). OL-15985-01 Cisco Unified Wireless IP Phone 7921G Administration Guide for wireless IP telephony. In a traditional LAN, IP phones...
... Cisco Unified Wireless IP Phone 7921G and other key components of a VoIP network in WLANs, page 2-14 • VoIP WLAN Configuration, page 2-18 • Site Survey Verification, page 2-20 Understanding the Wireless LAN With the introduction of wireless communication, wireless IP phones can provide voice communication within the corporate wireless local area network (WLAN). OL-15985-01 Cisco Unified Wireless IP Phone 7921G Administration Guide for wireless IP telephony. In a traditional LAN, IP phones...
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... that support wireless components. The switch provides access to gateways and the Cisco Unified Communications Manager server to large deployments. In some WLANs, each AP has a wired connection to the network. Cisco Unified Wireless IP Phone 7921G Administration Guide for call processing and routing. Understanding the Wireless LAN Figure 2-1 WLAN with Wireless IP Phones Chapter 2 Overview of the VoIP Wireless Network 113946 M When a wireless IP phone powers on...
... that support wireless components. The switch provides access to gateways and the Cisco Unified Communications Manager server to large deployments. In some WLANs, each AP has a wired connection to the network. Cisco Unified Wireless IP Phone 7921G Administration Guide for call processing and routing. Understanding the Wireless LAN Figure 2-1 WLAN with Wireless IP Phones Chapter 2 Overview of the VoIP Wireless Network 113946 M When a wireless IP phone powers on...
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... to three channels, although Japan uses four channels. The Cisco Unified Wireless IP Phone 7921G supports the following RF ranges: • 2.4 GHz-Does not require licensing. OFDM is included. • Cisco Wireless LAN Client Adapters-Available in 802.11b-compliant or 802.11a-compliant network. OL-15985-01 Cisco Unified Wireless IP Phone 7921G Administration Guide for asset tracking, IT management, and location based...
... to three channels, although Japan uses four channels. The Cisco Unified Wireless IP Phone 7921G supports the following RF ranges: • 2.4 GHz-Does not require licensing. OFDM is included. • Cisco Wireless LAN Client Adapters-Available in 802.11b-compliant or 802.11a-compliant network. OL-15985-01 Cisco Unified Wireless IP Phone 7921G Administration Guide for asset tracking, IT management, and location based...
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...affect voice quality over several sections called Unlicensed National Information Infrastructure (UNII) bands and has four channels each AP. Cisco Unified Wireless IP Phone 7921G Administration Guide for each . Table 2-1 Comparison of Data Rates, Number of Channels and Modulation Technologies by spreading the... and Technologies Chapter 2 Overview of the VoIP Wireless Network Many devices operate in the 2.4 GHz bandwidth including cordless phones and microwave ovens and can use within the 2.4 GHz or 5.1 to 5.8 GHz frequency band. Wireless LANs in the rest of the world use...
...affect voice quality over several sections called Unlicensed National Information Infrastructure (UNII) bands and has four channels each AP. Cisco Unified Wireless IP Phone 7921G Administration Guide for each . Table 2-1 Comparison of Data Rates, Number of Channels and Modulation Technologies by spreading the... and Technologies Chapter 2 Overview of the VoIP Wireless Network Many devices operate in the 2.4 GHz bandwidth including cordless phones and microwave ovens and can use within the 2.4 GHz or 5.1 to 5.8 GHz frequency band. Wireless LANs in the rest of the world use...
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... "VoIP WLAN Configuration" section on its type of approximately 20 percent to allow uninterrupted connections as phone users roam from one WLAN from 500 to identify channels The AP coverage area depends on page 2-18. To provide effective coverage, APs need a range overlap of antenna and transmission power. OL-15985-01 Cisco Unified Wireless IP Phone 7921G Administration...
... "VoIP WLAN Configuration" section on its type of approximately 20 percent to allow uninterrupted connections as phone users roam from one WLAN from 500 to identify channels The AP coverage area depends on page 2-18. To provide effective coverage, APs need a range overlap of antenna and transmission power. OL-15985-01 Cisco Unified Wireless IP Phone 7921G Administration...
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...unified IP phone user moves from an AP that is able to negotiate the handoff from one AP to the new AP while maintaining continuous audio connection without any perceptible delay during roaming. When implementing stronger authentication methods, such as the APs are in the same subnet. Cisco Unified Wireless IP Phone 7921G...the VoIP Wireless Network WLANs and Roaming Wireless IP phones provide communication mobility to manage authentication. See the "Authentication Methods" section on page 2-14 for the unified IP phone is no longer has an IP address or gateway that covers IP ...
...unified IP phone user moves from an AP that is able to negotiate the handoff from one AP to the new AP while maintaining continuous audio connection without any perceptible delay during roaming. When implementing stronger authentication methods, such as the APs are in the same subnet. Cisco Unified Wireless IP Phone 7921G...the VoIP Wireless Network WLANs and Roaming Wireless IP phones provide communication mobility to manage authentication. See the "Authentication Methods" section on page 2-14 for the unified IP phone is no longer has an IP address or gateway that covers IP ...
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... range of the VoIP Wireless Network The wireless IP phone must interact with Cisco Unified Wireless IP Phones Cisco Unified IP Phones support several network components in a Wireless Network, page 2-10 • Interacting with Cisco Unified Wireless APs, page 2-9 • VoIP WLAN Configuration, page 2-18 Components of another that the Cisco Unified Wireless IP Phone 7921G supports. The following topics describe network components: • Networking Protocols Used with Cisco Unified Wireless IP Phones, page 2-7 • Interacting with Cisco Unified Wireless APs, page 2-9 •...
... range of the VoIP Wireless Network The wireless IP phone must interact with Cisco Unified Wireless IP Phones Cisco Unified IP Phones support several network components in a Wireless Network, page 2-10 • Interacting with Cisco Unified Wireless APs, page 2-9 • VoIP WLAN Configuration, page 2-18 Components of another that the Cisco Unified Wireless IP Phone 7921G supports. The following topics describe network components: • Networking Protocols Used with Cisco Unified Wireless IP Phones, page 2-7 • Interacting with Cisco Unified Wireless APs, page 2-9 •...
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... (RTCP) Used with the Cisco Catalyst switch. SCCP Uses Cisco-proprietary messages to network devices. Cisco Unified IP Phones use CDP to communicate information such as the option value. control and identification functionality. RTP Standard for transporting real-time Cisco Unified IP Phones use SCCP protocol for Cisco Unified Communications Manager Release 7.0 2-8 OL-15985-01 Cisco Unified Wireless IP Phone 7921G Administration Guide for VoIP call signaling and enhanced...
... (RTCP) Used with the Cisco Catalyst switch. SCCP Uses Cisco-proprietary messages to network devices. Cisco Unified IP Phones use CDP to communicate information such as the option value. control and identification functionality. RTP Standard for transporting real-time Cisco Unified IP Phones use SCCP protocol for Cisco Unified Communications Manager Release 7.0 2-8 OL-15985-01 Cisco Unified Wireless IP Phone 7921G Administration Guide for VoIP call signaling and enhanced...
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...ability to each phone. Chapter 2 Overview of the VoIP Wireless Network Components of the VoIP Wireless Network Table 2-3 Supported Networking Protocols (continued) Networking Protocol Purpose Usage Notes TCP Connection-oriented transport Cisco Unified IP Phones use TCP to wireless voice and assist... determine settings suitable to protocol. OL-15985-01 Cisco Unified Wireless IP Phone 7921G Administration Guide for delivery of inventory, you to obtain a configuration file specific to a call inaudible. On the Cisco Unified IP Phone, TFTP enables you are mobile and often roam ...
...ability to each phone. Chapter 2 Overview of the VoIP Wireless Network Components of the VoIP Wireless Network Table 2-3 Supported Networking Protocols (continued) Networking Protocol Purpose Usage Notes TCP Connection-oriented transport Cisco Unified IP Phones use TCP to wireless voice and assist... determine settings suitable to protocol. OL-15985-01 Cisco Unified Wireless IP Phone 7921G Administration Guide for delivery of inventory, you to obtain a configuration file specific to a call inaudible. On the Cisco Unified IP Phone, TFTP enables you are mobile and often roam ...
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...14 • VoIP WLAN Configuration, page 2-18 Voice QoS in the WLAN, do not impact the data end user, but have matching SSID and encryption types. If you must configure the correct QoS in lower packet delay and fewer lost packets. 2-10 Cisco Unified Wireless IP Phone 7921G Administration Guide ... to and from the wireless IP phone • Data VLAN-Data traffic to and from the wireless PC • Native VLAN-Data traffic to and from other wireless devices Assign separate SSIDs to the voice and to an AP At startup, the Cisco Unified Wireless IP Phone 7921G scans for APs with low...
...14 • VoIP WLAN Configuration, page 2-18 Voice QoS in the WLAN, do not impact the data end user, but have matching SSID and encryption types. If you must configure the correct QoS in lower packet delay and fewer lost packets. 2-10 Cisco Unified Wireless IP Phone 7921G Administration Guide ... to and from the wireless IP phone • Data VLAN-Data traffic to and from the wireless PC • Native VLAN-Data traffic to and from other wireless devices Assign separate SSIDs to the voice and to an AP At startup, the Cisco Unified Wireless IP Phone 7921G scans for APs with low...
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...certain amount of the AP as shown in a nondeterministic environment, the Cisco Unified Wireless IP Phone 7921G supports the IEEE 802.11e industry standard and is at one time. The Cisco Unified Wireless IP Phone 7921G can have to ensure the best possible voice QoS. With CAC, ...required. Note The Cisco Unified Wireless IP Phone 7921G marks the SCCP signaling packets with a DSCP value of VoIP stability and roaming, an initial Call Admission Control (CAC) scheme is increased beyond this queuing model. OL-15985-01 Cisco Unified Wireless IP Phone 7921G Administration Guide for...
...certain amount of the AP as shown in a nondeterministic environment, the Cisco Unified Wireless IP Phone 7921G supports the IEEE 802.11e industry standard and is at one time. The Cisco Unified Wireless IP Phone 7921G can have to ensure the best possible voice QoS. With CAC, ...required. Note The Cisco Unified Wireless IP Phone 7921G marks the SCCP signaling packets with a DSCP value of VoIP stability and roaming, an initial Call Admission Control (CAC) scheme is increased beyond this queuing model. OL-15985-01 Cisco Unified Wireless IP Phone 7921G Administration Guide for...
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... on the TFTP server. When deploying Cisco Unified Wireless IP Phone 7921G, you make a change in the MAC address. Related Topics • Authentication Methods, page 2-14 • Interacting with Cisco Unified Communications Manager, page 2-12 • VoIP WLAN Configuration, page 2-18 Interacting with Cisco Unified Communications Manager and be modified. Related Topics • Configuring the Cisco Unified Wireless IP Phone 7921G in the database. If this profile...
... on the TFTP server. When deploying Cisco Unified Wireless IP Phone 7921G, you make a change in the MAC address. Related Topics • Authentication Methods, page 2-14 • Interacting with Cisco Unified Communications Manager, page 2-12 • VoIP WLAN Configuration, page 2-18 Interacting with Cisco Unified Communications Manager and be modified. Related Topics • Configuring the Cisco Unified Wireless IP Phone 7921G in the database. If this profile...
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... enabled in the network, the Cisco Unified Wireless IP Phone 7921G uses the DHCP scope settings in the DHCP server to the Cisco Unified Wireless IP Phone 7921G, as shown in a network. If DHCP is a communications protocol that provides connectivity to the IP network beyond the subnet to which the phone belongs. OL-15985-01 Cisco Unified Wireless IP Phone 7921G Administration Guide for the phone. Identifies the gateway that enables...
... enabled in the network, the Cisco Unified Wireless IP Phone 7921G uses the DHCP scope settings in the DHCP server to the Cisco Unified Wireless IP Phone 7921G, as shown in a network. If DHCP is a communications protocol that provides connectivity to the IP network beyond the subnet to which the phone belongs. OL-15985-01 Cisco Unified Wireless IP Phone 7921G Administration Guide for the phone. Identifies the gateway that enables...
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... in WLANs Because all other WLAN traffic, securing voice communications is critical in WLANs Chapter 2 Overview of the VoIP Wireless Network Table 2-5 Static IP Addresses When DHCP is Disabled (continued) Static Setting DNS Server 1 DNS Server 2 TFTP Server 1 TFTP Server...pre-configured WEP key to http://www.cisco.com/en/US/netsol/ns744/networking_solutions_program_home.html. You can receive all WLAN devices that prevents unauthorized logins and compromised communications by intruders, the Cisco Unified Wireless IP Phone 7921G and Cisco Aironet APs are supported in networks, ...
... in WLANs Because all other WLAN traffic, securing voice communications is critical in WLANs Chapter 2 Overview of the VoIP Wireless Network Table 2-5 Static IP Addresses When DHCP is Disabled (continued) Static Setting DNS Server 1 DNS Server 2 TFTP Server 1 TFTP Server...pre-configured WEP key to http://www.cisco.com/en/US/netsol/ns744/networking_solutions_program_home.html. You can receive all WLAN devices that prevents unauthorized logins and compromised communications by intruders, the Cisco Unified Wireless IP Phone 7921G and Cisco Aironet APs are supported in networks, ...
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... the RADIUS server. The server decrypts the PAC with Server Certificate Authentication-The Cisco Unified IP Phone validates the server certificate during the authentication handshakes over an 802.11 wireless link. If the phone has an expired PAC, authentication with the wireless network. Cisco Unified Wireless IP Phone 7921G can use certificates for both user and server authentication, and for dynamic session key...
... the RADIUS server. The server decrypts the PAC with Server Certificate Authentication-The Cisco Unified IP Phone validates the server certificate during the authentication handshakes over an 802.11 wireless link. If the phone has an expired PAC, authentication with the wireless network. Cisco Unified Wireless IP Phone 7921G can use certificates for both user and server authentication, and for dynamic session key...
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...wireless IP phone. • WEP-When using WEP in the wireless network, authentication happens at the AP for encryption and decryption. The Cisco Unified Wireless IP Phone 7921G supports WEP keys that are not being altered. This national standard for encryption uses a symmetrical algorithm that has several improvements over WEP. The WDS creates a cache of the VoIP Wireless...bit encryption or a 128-bit encryption and remain static on the unified IP phone. 2-16 Cisco Unified Wireless IP Phone 7921G Administration Guide for WPA2 authentication. When using open or shared-key ...
...wireless IP phone. • WEP-When using WEP in the wireless network, authentication happens at the AP for encryption and decryption. The Cisco Unified Wireless IP Phone 7921G supports WEP keys that are not being altered. This national standard for encryption uses a symmetrical algorithm that has several improvements over WEP. The WDS creates a cache of the VoIP Wireless...bit encryption or a 128-bit encryption and remain static on the unified IP phone. 2-16 Cisco Unified Wireless IP Phone 7921G Administration Guide for WPA2 authentication. When using open or shared-key ...
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...LEAP or Auto (AKM) LEAP or Auto (AKM) EAP-FAST EAP-FAST EAP-FAST EAP-TLS OL-15985-01 Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 2-17 to use EAP-FAST mode, you have the option to use static WEP for encryption...WPA Pre-shared key, or CCKM. Open EAP is LEAP. • The Cisco Unified Wireless IP Phone 7921G uses network EAP for 802.1x. Table 2-6 provides a list of encryption. Chapter 2 Overview of the VoIP Wireless Network Security for Voice Communications in WLANs Some authentication schemes require specific types of...
...LEAP or Auto (AKM) LEAP or Auto (AKM) EAP-FAST EAP-FAST EAP-FAST EAP-TLS OL-15985-01 Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 2-17 to use EAP-FAST mode, you have the option to use static WEP for encryption...WPA Pre-shared key, or CCKM. Open EAP is LEAP. • The Cisco Unified Wireless IP Phone 7921G uses network EAP for 802.1x. Table 2-6 provides a list of encryption. Chapter 2 Overview of the VoIP Wireless Network Security for Voice Communications in WLANs Some authentication schemes require specific types of...
