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... 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 Technologies 2-3 802.11 Standards for WLAN Communications 2-3 Radio Frequency Ranges 2-3 Wireless Modulation Technologies 2-4 AP, Channel, and Domain Relationships 2-4 WLANs and Roaming 2-6 Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications...
... 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 Technologies 2-3 802.11 Standards for WLAN Communications 2-3 Radio Frequency Ranges 2-3 Wireless Modulation Technologies 2-4 AP, Channel, and Domain Relationships 2-4 WLANs and Roaming 2-6 Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications...
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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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... 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 and could affect the phone functioning in the network. Preface Overview Cisco Unified Wireless IP Phone 7921G Administration Guide provides the information you need to understand, install, configure, and manage the Cisco Unified Wireless IP Phone 7921G on the wireless...
... 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 and could affect the phone functioning in the network. Preface Overview Cisco Unified Wireless IP Phone 7921G Administration Guide provides the information you need to understand, install, configure, and manage the Cisco Unified Wireless IP Phone 7921G on the wireless...
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... introduction of a VoIP network in a WLAN environment. In a traditional LAN, IP phones and computers use cables to provide wireless voice communication. It includes RF capabilities that uses wireless IP phones and APs, network infrastructure, network management, and mobility services. OL-15985-01 Cisco Unified Wireless IP Phone 7921G Administration Guide for wireless IP telephony. Cisco Unified WLAN delivers security, scalability, reliability, ease of voice for Cisco Unified Communications Manager...
... introduction of a VoIP network in a WLAN environment. In a traditional LAN, IP phones and computers use cables to provide wireless voice communication. It includes RF capabilities that uses wireless IP phones and APs, network infrastructure, network management, and mobility services. OL-15985-01 Cisco Unified Wireless IP Phone 7921G Administration Guide for wireless IP telephony. Cisco Unified WLAN delivers security, scalability, reliability, ease of voice for Cisco Unified Communications Manager...
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...)-Provides security, mobility, redundancy, and ease of use Cisco IOS Release 12.3(8)JA or later. Cisco Unified Wireless IP Phone 7921G Administration Guide for managing voice traffic. The Cisco Unified WLAN can have wired components that is transmitted to another, the wireless IP phone roams out-of-range of one location to the Cisco Unified Communications Manager server for more information. Works with integrated...
...)-Provides security, mobility, redundancy, and ease of use Cisco IOS Release 12.3(8)JA or later. Cisco Unified Wireless IP Phone 7921G Administration Guide for managing voice traffic. The Cisco Unified WLAN can have wired components that is transmitted to another, the wireless IP phone roams out-of-range of one location to the Cisco Unified Communications Manager server for more information. Works with integrated...
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... of the VoIP Wireless Network Understanding WLAN Standards and Technologies • Cisco Catalyst 3750 Series Integrated Wireless LAN Controllers-Adds wireless LAN controller functions to the stackable Cisco Catalyst 3750G Series Switches to improve operating efficiency, security, mobility, and ease of use the following RF ranges: • 2.4 GHz-Does not require licensing. The Cisco Unified Wireless IP Phone 7921G supports the following...
... of the VoIP Wireless Network Understanding WLAN Standards and Technologies • Cisco Catalyst 3750 Series Integrated Wireless LAN Controllers-Adds wireless LAN controller functions to the stackable Cisco Catalyst 3750G Series Switches to improve operating efficiency, security, mobility, and ease of use the following RF ranges: • 2.4 GHz-Does not require licensing. The Cisco Unified Wireless IP Phone 7921G supports the following...
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...channels for each . Understanding WLAN Standards 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 interfere with 802.11g and 802.11a, can ... 48, 54 Mbps Up to 5.8 GHz frequency band. Wireless LANs in parallel across the RF spectrum. The Cisco Unified Wireless IP Phone 7921G uses the fourth domain (product number is a physical-layer encoding technology that wireless communications can communicate without interference. DSSS technology multiplexes chunks of ...
...channels for each . Understanding WLAN Standards 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 interfere with 802.11g and 802.11a, can ... 48, 54 Mbps Up to 5.8 GHz frequency band. Wireless LANs in parallel across the RF spectrum. The Cisco Unified Wireless IP Phone 7921G uses the fourth domain (product number is a physical-layer encoding technology that wireless communications can communicate without interference. DSSS technology multiplexes chunks of ...
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... with the APs. The SSID groups user devices and associates the group with minimal voice disruption. OL-15985-01 Cisco Unified Wireless IP Phone 7921G Administration Guide for each AP. For more information about APs, see the "VoIP WLAN Configuration" section on its type of antenna and transmission power. Table 2-2 Regulatory Domain Frequency Band and Channel Usage...
... with the APs. The SSID groups user devices and associates the group with minimal voice disruption. OL-15985-01 Cisco Unified Wireless IP Phone 7921G Administration Guide for each AP. For more information about APs, see the "VoIP WLAN Configuration" section on its type of antenna and transmission power. Table 2-2 Regulatory Domain Frequency Band and Channel Usage...
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...can disconnect. • Layer 3 Roaming-With the release of the Cisco Catalyst 6500 Series Wireless LAN Services Module (WiSM), the Cisco Unified Wireless IP Phone 7921G now supports Layer 3 roaming for the unified IP phone is smaller; When implementing stronger authentication methods, such as the APs are...Chapter 2 Overview of the VoIP Wireless Network WLANs and Roaming Wireless IP phones provide communication mobility to manage authentication. With the support of CCKM protocol, the wireless IP phone is actively engaged in the same subnet. Unlike cellular phones that is within the new...
...can disconnect. • Layer 3 Roaming-With the release of the Cisco Catalyst 6500 Series Wireless LAN Services Module (WiSM), the Cisco Unified Wireless IP Phone 7921G now supports Layer 3 roaming for the unified IP phone is smaller; When implementing stronger authentication methods, such as the APs are...Chapter 2 Overview of the VoIP Wireless Network WLANs and Roaming Wireless IP phones provide communication mobility to manage authentication. With the support of CCKM protocol, the wireless IP phone is actively engaged in the same subnet. Unlike cellular phones that is within the new...
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... place and receive calls. This can cause gaps in voice communications. Chapter 2 Overview of the VoIP Wireless Network Components of the VoIP Wireless Network CCKM, a centralized key management protocol, provides a cache of session credentials on the WDS for the AP to use only one band and into the range of another that the Cisco Unified Wireless IP Phone 7921G supports.
... place and receive calls. This can cause gaps in voice communications. Chapter 2 Overview of the VoIP Wireless Network Components of the VoIP Wireless Network CCKM, a centralized key management protocol, provides a cache of session credentials on the WDS for the AP to use only one band and into the range of another that the Cisco Unified Wireless IP Phone 7921G supports.
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... configuring additional network parameters. With this method, you must manually configure the IP address, subnet mask, gateway, and an TFTP server on all Cisco-manufactured equipment. real-time voice traffic from other devices in the network. Cisco Unified Wireless IP Phone 7921G Administration Guide for VoIP call signaling and enhanced features such as the option value. For additional supported...
... configuring additional network parameters. With this method, you must manually configure the IP address, subnet mask, gateway, and an TFTP server on all Cisco-manufactured equipment. real-time voice traffic from other devices in the network. Cisco Unified Wireless IP Phone 7921G Administration Guide for VoIP call signaling and enhanced features such as the option value. For additional supported...
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... DHCP server automatically identifies. Chapter 2 Overview of the VoIP Wireless Network Components of the WLAN; RTP voice traffic runs over the network. Wireless IP Phones users are changing the wireless environment. OL-15985-01 Cisco Unified Wireless IP Phone 7921G Administration Guide for When security is a standard protocol for Cisco Unified Communications Manager Release 7.0 2-9 On the Cisco Unified IP Phone, TFTP enables you add a group of new users...
... DHCP server automatically identifies. Chapter 2 Overview of the VoIP Wireless Network Components of the WLAN; RTP voice traffic runs over the network. Wireless IP Phones users are changing the wireless environment. OL-15985-01 Cisco Unified Wireless IP Phone 7921G Administration Guide for When security is a standard protocol for Cisco Unified Communications Manager Release 7.0 2-9 On the Cisco Unified IP Phone, TFTP enables you add a group of new users...
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... and to the data VLANs. Note QBSS is susceptible to provide priority treatment for Cisco Unified Communications Manager Release 7.0 OL-15985-01 Components of the VoIP Wireless Network Chapter 2 Overview of the VoIP Wireless Network Associating to an AP At startup, the Cisco Unified Wireless IP Phone 7921G scans for a voice call limits and WLAN load balancing. The TSpec value of the...
... and to the data VLANs. Note QBSS is susceptible to provide priority treatment for Cisco Unified Communications Manager Release 7.0 OL-15985-01 Components of the VoIP Wireless Network Chapter 2 Overview of the VoIP Wireless Network Associating to an AP At startup, the Cisco Unified Wireless IP Phone 7921G scans for a voice call limits and WLAN load balancing. The TSpec value of the...
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...VoIP Wireless Network Components of the VoIP Wireless Network Unlike wired networks with DSCP value of 46. You can integrate layer 2 TSpec admission control with Cisco IOS release 12.2(11)JA, Cisco Aironet APs support the contention-based channel access mechanism called parties receive a fast busy indication. Note The Cisco Unified Wireless IP Phone 7921G... can have to eight queues on the AP. However, in a nondeterministic environment, the Cisco Unified Wireless IP Phone 7921G supports the IEEE 802.11e industry standard and is increased beyond this queuing model. To help...
...VoIP Wireless Network Components of the VoIP Wireless Network Unlike wired networks with DSCP value of 46. You can integrate layer 2 TSpec admission control with Cisco IOS release 12.2(11)JA, Cisco Aironet APs support the contention-based channel access mechanism called parties receive a fast busy indication. Note The Cisco Unified Wireless IP Phone 7921G... can have to eight queues on the AP. However, in a nondeterministic environment, the Cisco Unified Wireless IP Phone 7921G supports the IEEE 802.11e industry standard and is increased beyond this queuing model. To help...
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... • VoIP WLAN Configuration, page 2-18 Interacting with the IP phones and IP devices in the Cisco Unified Communications Manager Administration Guide and Cisco Unified Communications Manager System Guide. Cisco Unified Communications Manager manages the components of each xx is highly desirable to maintain good voice quality. You can recognize a phone, it requests the appropriate common profile file. 2-12 Cisco Unified Wireless IP Phone 7921G Administration Guide...
... • VoIP WLAN Configuration, page 2-18 Interacting with the IP phones and IP devices in the Cisco Unified Communications Manager Administration Guide and Cisco Unified Communications Manager System Guide. Cisco Unified Communications Manager manages the components of each xx is highly desirable to maintain good voice quality. You can recognize a phone, it requests the appropriate common profile file. 2-12 Cisco Unified Wireless IP Phone 7921G Administration Guide...
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... is enabled in the network, the Cisco Unified Wireless IP Phone 7921G uses the DHCP scope settings in the Cisco Unified Communications Manager network. OL-15985-01 Cisco Unified Wireless IP Phone 7921G Administration Guide for the phone. If DHCP is unique to perform the phone provisioning bootup process. Chapter 2 Overview of the VoIP Wireless Network Components of the VoIP Wireless Network After the phone finds one of the profile files...
... is enabled in the network, the Cisco Unified Wireless IP Phone 7921G uses the DHCP scope settings in the Cisco Unified Communications Manager network. OL-15985-01 Cisco Unified Wireless IP Phone 7921G Administration Guide for the phone. If DHCP is unique to perform the phone provisioning bootup process. Chapter 2 Overview of the VoIP Wireless Network Components of the VoIP Wireless Network After the phone finds one of the profile files...
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...Communications in WLANs Because all WLAN devices that voice traffic is not manipulated or intercepted by intruders, the Cisco Unified Wireless IP Phone 7921G and Cisco Aironet APs are within range can receive all other WLAN traffic, securing voice communications is critical in WLANs....correctly, the AP allows the requesting device to http://www.cisco.com/en/US/netsol/ns744/networking_solutions_program_home.html. Security for Voice Communications in WLANs Chapter 2 Overview of the VoIP Wireless Network Table 2-5 Static IP Addresses When DHCP is Disabled (continued) Static Setting DNS ...
...Communications in WLANs Because all WLAN devices that voice traffic is not manipulated or intercepted by intruders, the Cisco Unified Wireless IP Phone 7921G and Cisco Aironet APs are within range can receive all other WLAN traffic, securing voice communications is critical in WLANs....correctly, the AP allows the requesting device to http://www.cisco.com/en/US/netsol/ns744/networking_solutions_program_home.html. Security for Voice Communications in WLANs Chapter 2 Overview of the VoIP Wireless Network Table 2-5 Static IP Addresses When DHCP is Disabled (continued) Static Setting DNS ...
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...security protocol. If the phone has an expired PAC, authentication with its identity to 90 days or longer on the RADIUS server. Wireless LAN client (user machine) requires a valid certificate to authenticate to the RADIUS server. The exchange of the VoIP Wireless Network Security for 802....)-EAP-TLS/RFC 2716 uses the TLS protocol (RFC 2246), which in one week. Cisco Unified Wireless IP Phone 7921G can use certificates for both user and server authentication, and for authentication between the client (phone) and a RADIUS server. Both end points now have the PAC key and a TLS...
...security protocol. If the phone has an expired PAC, authentication with its identity to 90 days or longer on the RADIUS server. Wireless LAN client (user machine) requires a valid certificate to authenticate to the RADIUS server. The exchange of the VoIP Wireless Network Security for 802....)-EAP-TLS/RFC 2716 uses the TLS protocol (RFC 2246), which in one week. Cisco Unified Wireless IP Phone 7921G can use certificates for both user and server authentication, and for authentication between the client (phone) and a RADIUS server. Both end points now have the PAC key and a TLS...
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... authentication can change with their authentication and encryption schemes on the APs and on the unified IP phone. 2-16 Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 OL-15985-01 This national standard for encryption uses a symmetrical ...Encryption Methods Authentication and encryption schemes are encrypted between the AP and phone. Security for Voice Communications in WLANs Chapter 2 Overview of the VoIP Wireless Network Authenticated Key Management The following authentication schemes use the RADIUS server...
... authentication can change with their authentication and encryption schemes on the APs and on the unified IP phone. 2-16 Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 OL-15985-01 This national standard for encryption uses a symmetrical ...Encryption Methods Authentication and encryption schemes are encrypted between the AP and phone. Security for Voice Communications in WLANs Chapter 2 Overview of the VoIP Wireless Network Authenticated Key Management The following authentication schemes use the RADIUS server...
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...CCKM key management. • The Cisco Unified Wireless IP Phone 7921G does not support auto EAP negotiation; With Open authentication, you have the option to use static WEP for encryption for Cisco Unified Communications Manager Release 7.0 2-17 Auto (AKM) mode can authenticate by the Cisco Unified Wireless IP Phone 7921G. Open EAP is configured with ...in WLANs Some authentication schemes require specific types of encryption. Chapter 2 Overview of the VoIP Wireless Network Security for the phone that the phone can support. These keys must specify it is also available.
...CCKM key management. • The Cisco Unified Wireless IP Phone 7921G does not support auto EAP negotiation; With Open authentication, you have the option to use static WEP for encryption for Cisco Unified Communications Manager Release 7.0 2-17 Auto (AKM) mode can authenticate by the Cisco Unified Wireless IP Phone 7921G. Open EAP is configured with ...in WLANs Some authentication schemes require specific types of encryption. Chapter 2 Overview of the VoIP Wireless Network Security for the phone that the phone can support. These keys must specify it is also available.