Cisco Systems 7906G, 7911G manual Security Restrictions, Related Topic

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Chapter 1 An Overview of the Cisco Unified IP Phone

Understanding Security Features for Cisco Unified IP Phones

In an authenticated call, all devices participating in the establishment of the call are authenticated by the Cisco Unified CallManager. When a call in progress is authenticated end-to-end, the call progress icon to the right of the call duration timer in the phone LCD screen changes to the following icon:

In an encrypted call, all devices participating in the establishment of the call are authenticated by the Cisco Unified CallManager. In addition, call signaling and media streams are encrypted. An encrypted call offers the highest level of security, providing integrity and privacy to the call. When a call in progress is being encrypted, the call progress icon to the right of the call duration timer in the phone LCD screen changes to the following icon:

Note If the call is routed through a non-IP call leg, for example, PSTN, the call will be nonsecure even though it is encrypted within the IP network and has a lock icon associated with it.

Related Topic

•Understanding Security Features for Cisco Unified IP Phones, page 1-10

•Security Restrictions, page 1-16

Security Restrictions

A user cannot barge into an encrypted call if the phone that is used to barge is not configured for encryption. When barge fails in this case, a reorder tone (fast busy tone) plays on the barge initiator's phone.

If the initiator phone is configured for encryption, the barge initiator can barge into an authenticated or nonsecure call from the encrypted phone. After the barge occurs, Cisco Unified CallManager classifies the call as nonsecure.

If the initiator phone is configured for encryption, the barge initiator can barge into an encrypted call, and the phone indicates that the call is encrypted.

 

Cisco Unified IP Phone 7906G and 7911G Administration Guide for Cisco Unified CallManager

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OL-10008-01

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Contents Cisco Unified IP Phone 7906G and 7911G Page Copyright 2006 Cisco Systems, Inc. All rights reserved Page N T E N T S Security Restrictions Safety ViiConfiguring Features, Templates, Services, and Users ViiiPNG File Requirements for Custom Background Images Symptom The Cisco Unified IP Phone Does Not Register with Supporting International Users B-1 Xii Overview AudienceXiii Organization XivAppendix C, Technical Specifications Cisco Unified CallManager AdministrationRelated Documentation Appendix B, Supporting International UsersObtaining Documentation Cisco.comXvi Documentation Feedback Product Documentation DVD Ordering DocumentationXvii Cisco Product Security Overview XviiiReporting Security Problems in Cisco Products For Emergencies only security-alert@cisco.comXix Obtaining Technical Assistance Cisco Technical Support & Documentation WebsiteSubmitting a Service Request Definitions of Service Request SeverityXxi Obtaining Additional Publications and Information XxiiXxiii Document Conventions Convention DescriptionXxiv Waarschuwing Belangrijke Veiligheidsinstructies Varoitus Tärkeitä TurvallisuusohjeitaXxv Warnung Wichtige Sicherheitshinweise Avvertenza Importanti Istruzioni Sulla SicurezzaXxvi Aviso Instruções Importantes DE Segurança XxviiVarning! Viktiga Säkerhetsanvisningar XxviiiXxix GEM Disse Anvisninger XxxXxxi Xxxii An Overview Cisco Unified IP Phone Understanding the Cisco Unified IP Phones 7906G and 7911G Cisco Unified IP Phones 7906G and 7911G What Networking Protocols Are Used? Networking Protocol Purpose Usage Notes DhcpSrtp What Features are Supported? UDPRelated Topics Feature Overview Configuring Telephony Features Telephony Features Available for the Phone,Related Topic Understanding Security Features for Cisco Unified IP Phones Providing Users with Feature InformationTopic Reference Overview of Supported Security Features See the Troubleshooting Cisco Unified IPSee the Resetting or Restoring Phone Security section onFeature Description Configuring Security on the Cisco Unified IP PhoneSection on page 3-17 for more information Capf Identifying Encrypted and Authenticated Phone Calls Device Configuration Menu section onGarp Security Restrictions Cisco Unified CallManager Database section on OL-10008-01 Task Purpose For More Information Phone Configuration window CallManager database See the Configuring See the Setting UpServices section on Softkey TemplatesInstalling Cisco Unified IP Phones See the Adding Users toCisco Unified CallManag Er section onSee the Providing Power See the InstallingCisco Unified IP Phones 7906G and 7911GStartup Network Settings Configuration MenuSecurity on See Appendix a Providing Information toUsers OL-10008-01 Preparing to Install Cisco Unified IP Phone on Your Network OL-10008-01 Vlan Providing Power to Cisco Unified IP Phones 7906G and 7911G Power OutagePower Guidelines Obtaining Additional Information about PowerPower Type Guidelines Understanding Phone Configuration Files URLUnderstanding the Phone Startup Process Step Description Related Topics VlanCisco Unified CallMan Phone Configuration See the UnderstandingAdding Phones to the Cisco Unified CallManager Database Requires MAC Method Address?Adding Phones with Auto-Registration Adding Phones with Auto-Registration and Taps Adding Phones with Cisco Unified CallManager Administration MAC Address of a Cisco Unified IP Phone section onDetermining the MAC Address of a Cisco Unified IP Phone Adding Phones with BATOL-10008-01 Setting Up the Cisco Unified IP Phone Before You BeginHandset, Speaker, Installing the Cisco Unified IP Phone, Network RequirementsCisco Unified CallManager Configuration SafetySetting Up the Cisco Unified IP Phone Before You Begin Network and Access Ports Network and Access Ports, Handset, Speaker, Headset,Handset Monitor Mode SpeakerHeadset Activating Group Listen on the PhoneAudio Quality Subjective to User Installing the Cisco Unified IP Phone Connecting a HeadsetProcedure Reference 154887 154389 Cisco Unified IP Phone Model 7906G Cable Connections Cisco Unified IP Phone Model 7911G Cable Connections Procedure Mounting the Phone to a WallBefore You Begin Configuring Startup Network Settings Verifying the Phone Startup ProcessConfiguring Security on the Cisco Unified IP Phone Settings on the Cisco Unified IP PhoneCisco Unified CallManager Administration Guide Related Topic OL-10008-01 Configuring Settings on Cisco Unified IP Phone Displaying a Configuration Menu Unlocking and Locking Options Editing the Values of an Option Setting Overview of Options Configurable from a Phone Network Configuration Menu Category Description OptionNetwork Configuration Menu Option Description To ChangeOption Description To Change CTL File Screen section on To the CTL File Screen section Vlan ID Option Description To Change Option Description To Change PC Vlan Device Configuration Menu CallManager Configuration MenuState Designation Description SrstTftp Http Configuration Menu URLLocale Configuration Menu UI Configuration Menu Media Configuration MenuEthernet Configuration Menu Security Configuration Menu10 Security Configuration Menu Options QoS Configuration Menu Displaying a Configuration Menu, Network Configuration Menu,Network Configuration Configuring Features, Templates Services, and Users Telephony Features Available for the Phone Feature Description Configuration ReferenceSystem Guide, Understanding Administration Guide, Feature Call CMC FAC System Guide, Call PickupAdministration Guide , Meet-Me McidSystem Guide, Voice Mail MlppButton Templates section on QRTAdministration Guide, Time See the Configuring Softkey Templates section onConfiguring Corporate Directories Configuring Personal DirectoryConfiguring Softkey Templates Modifying Phone Button TemplatesSetting Up Services Adding Users to Cisco Unified CallManager Specifying Options that Appear on the User Options Web Pages OL-10008-01 Customizing Cisco Unified IP Phone Creating Custom Phone RingsRingList.xml File Format Requirements Ring CiscoIPPhoneRingListConfiguring a Custom Phone Ring PCM File Requirements for Custom Ring TypesCreating Custom Background Images List.xml File Format RequirementsList.xml Example Configuring a Custom Background Image PNG File Requirements for Custom Background ImagesOL-10008-01 OL-10008-01 A P T E R Security Configuration Menu CTL File Screen CTL File Information Trust List Screen Model Information Screen Status Menu CTLMIC LSCStatus Messages Screen Press the Applications Menu buttonStatus CallManager Administration section on Network Configuration Menu sectionMessage Description Possible Explanation and Action Adding Phones with Cisco UnifiedConfiguration Menu section on AddressAddress. See the Network Configuration Menu section on page 4-7 section forNetwork Configuration Menu section on Phone. See the Firmware Versions ScreenSection on page 7-19 to verify the phone See the Network Configuration Menu Section on page 4-7 section for detailsOn page 4-7for details on assigning a Network Statistics Screen Select Network Statistics PC port is in a link up state and has auto-negotiated Firmware Versions Screen OL-10008-01 Monitoring the Cisco Unified IP Phone Remotely Accessing the Web Page for a Phone Device Logs, Streaming Statistics,Disabling Web Page Access Device Information Monitoring the Cisco Unified IP Phone Remotely UDI Network Configuration Description Description Description Description Network Statistics Ethernet Information Area Items OL-10008-01 Device Logs Streaming Statistics Streaming Statistics OL-10008-01 Troubleshooting and Maintenance Resolving Startup Problems Troubleshooting and Maintenance Resolving Startup Problems Identifying Error Messages Verifying Tftp Server Settings Verifying DNS Settings Creating a New Configuration File Cisco Unified IP Phone Resets Unexpectedly Verifying Dhcp Settings Verifying Physical ConnectionIdentifying Intermittent Network Outages Checking Static IP Address Settings Verifying Voice Vlan ConfigurationEliminating DNS or Other Connectivity Errors General Troubleshooting Tips Problem Possible CauseSummary Explanation Unlocking and Locking Options section on page 4-3 for HalfduxcollisionexceedthresholdPerforming a Basic Reset Performing a Basic Reset, Performing a Factory Reset,Operation Performing Explanation Performing a Factory Reset Locking Options section onUnlocking and Locking Options Section on page 4-3 . The pressUsing the Quality Report Tool Cleaning the Cisco Unified IP Phone Where to Go for More Troubleshooting InformationProviding Information to Users How Users Obtain Support for the Cisco Unified IP PhoneHow Users Subscribe to Services and Configure Phone Features How Users Get Copies of Cisco Unified IP Phone ManualsHow Users Access a Voice Messaging System Cisco Unified CallManager section onHow Users Configure Personal Directory Entries Supporting International Users Appendix B Supporting International Users Technical Specifications Specification Value or RangeCable Specifications Network and Access Port PinoutsNetwork Port Connector Pin Number FunctionAccess Port Connector RD+OL-10008-01 Numerics IN-1IN-2 IN-3 IN-4 IN-5 IN-6 IN-7 IN-8 IN-9 IN-10 IN-11 Wall mounting Web Access Enabled 4-22web IN-12Page USA
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7906G, 7911G specifications

The Cisco Systems 7911G is a versatile IP phone designed to enhance communication in enterprise environments. Targeting workers in various organizational settings, this model is known for its reliability, ease of use, and robust features that cater to both basic and advanced telephony requirements.

One of the key features of the Cisco 7911G is its support for Voice over IP (VoIP) technology. Using this technology allows for the transmission of voice signals over the internet rather than through traditional telephone lines. This not only reduces telephony costs but also offers enhanced functionality that integrates seamlessly with existing communication systems.

The phone is equipped with a monochrome graphical display that provides users with clear visibility of their call status, directory information, and menu options. With a resolution of 128x64 pixels, the screen is large enough to offer important information without overwhelming the user. This simplicity makes it an ideal choice for users who require straightforward functionality without the complexity of advanced features.

Ergonomically designed, the Cisco 7911G features a comfortable keypad with dedicated buttons for frequently used functions such as mute, hold, and transfer. It supports multiple lines, providing users with the ability to manage multiple calls simultaneously. Additionally, it offers programmable line keys that can be customized for speed dial or as soft keys for quick access to features.

The device supports Power over Ethernet (PoE), which allows the phone to receive power through the network cable rather than needing a separate power source. This feature not only simplifies installation but also enhances mobility within the workspace, as it reduces cable clutter.

Another significant characteristic of the Cisco 7911G is its compatibility with Cisco Unified Communications Manager, which ensures centralized management of telephony systems. It also supports a range of audio codecs that help in delivering high-quality audio during calls, reducing latency and improving overall communication quality.

Security is also a focus with the Cisco 7911G, as it features a secure access feature that includes Transport Layer Security (TLS) and Secure Real-Time Transport Protocol (SRTP) for encrypted voice communications. This ensures that sensitive conversations are protected from eavesdropping.

Overall, the Cisco Systems 7911G is a reliable, feature-rich IP phone that provides an excellent solution for organizations looking to upgrade their communication systems. Its combination of user-friendly design, powerful integrations, and security features makes it a cornerstone in the suite of Cisco telecommunications solutions.
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