Cisco Systems 6901 manual Symptom Cisco Unified IP Phone Unable to Obtain IP Address

Page 95

Chapter 7 Troubleshooting and Maintenance

Resolving Startup Problems

Note

 

• When you remove a phone from the Cisco Unified Communications Manager database, its

 

 

configuration file is deleted from the Cisco Unified Communications Manager TFTP server. The

 

 

phone’s directory number or numbers remain in the Cisco Unified Communications Manager

 

 

database. They are called “unassigned DNs” and can be used for other devices. If unassigned DNs

 

 

are not used by other devices, delete them from the Cisco Unified Communications Manager

 

 

database. You can use the Route Plan Report to view and delete unassigned reference numbers.

 

 

Refer to Cisco Unified Communications Manager Administration Guide for more information.

 

 

• Changing the buttons on a phone button template, or assigning a different phone button template to

 

 

a phone, may result in directory numbers that are no longer accessible from the phone. The directory

 

 

numbers are still assigned to the phone in the Cisco Unified Communications Manager database, but

 

 

there is no button on the phone with which calls can be answered. These directory numbers should

 

 

be removed from the phone and deleted if necessary.

 

 

 

Registering the Phone with Cisco Unified Communications Manager

A Cisco Unified IP Phone can register with a Cisco Unified Communications Manager server only if the phone has been added to the server or if auto-registration is enabled and if there is a sufficient number of unit licenses. Review the information and procedures in the “Adding Phones to the Cisco Unified Communications Manager Database” section on page 2-7to ensure that the phone has been added to the Cisco Unified Communications Manager database.

To verify that the phone is in the Cisco Unified Communications Manager database, choose Device > Phone > Find from Cisco Unified Communications Manager Administration to search for the phone based on its MAC Address. For information about determining a MAC address, see the “Using Cisco Unified IP Phones with Different Protocols” section on page 2-11.

If the phone is already in the Cisco Unified Communications Manager database, its configuration file may be damaged. See the “Creating a New Configuration File” section on page 7-4for assistance.

For more information on licensing go to the Licenses for Phones section in the Cisco Unified Communications Manager System Guide

Symptom: Cisco Unified IP Phone Unable to Obtain IP Address

If a phone is unable to obtain an IP address when it starts up, the phone may be not be on the same network or VLAN as the DHCP server, or the switch port to which the phone is connected may be disabled. Make sure that the network or VLAN to which the phone is connected has access to the DHCP server, and make sure that the switch port is enabled.

Cisco Unified IP Phone 6901 and 6911 Administration Guide for Cisco Unified Communications Manager 8.5 (SCCP and SIP)

 

OL-23874-01

7-5

 

 

 

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Contents Text Part Number OL-23874-01 Americas HeadquartersPage N T E N T S Manager Disabling and Enabling Web Page Access Network and Access Port Pinouts C-3 Installing the Bracket E-8 OL-23874-01 Chapter Description OverviewAudience OrganizationCisco Unified IP Phone 6900 Series Related DocumentationCisco Product Security Overview Italic screen font Document ConventionsConvention Description Italic fontAn Overview of the Cisco Unified IP Phone 1shows the main components of the Cisco Unified IP Phone Understanding the Cisco Unified IP Phone 6901OL-23874-01 2shows the main components of the Cisco Unified IP Phone OL-23874-01 Communications Manager System Guide Dynamic Host Configuration Protocol chapterWhat Networking Protocols are Used? Networking Protocol Purpose Usage Notes701/technologieswhitepaper0900aecd804cd46d Supporting 802.1X Authentication on CiscoUnified IP Phones section on page 1-17for See the LLDP-MED and Cisco Discovery ProtocolRelated Topics Communications Manager Security GuideCisco Unified Communications Manager System GuideConfiguring Telephony Features Feature OverviewRelated Topic Providing Users with Feature InformationOL-23874-01 Security, refer to the Cisco Unified Communications Manager Refer to the Troubleshooting Guide for Cisco UnifiedTopic Reference Communications ManagerPhone section on page 3-10for more information Overview of Supported Security FeaturesFeature Description Voice Quality Metrics IP Phones section on page 1-17for more informationUnderstanding Security Profiles Establishing and Identifying Protected Calls Overview Supporting 802.1X Authentication on Cisco Unified IP PhonesRequired Network Components Best Practices-Requirements and Recommendations OL-23874-01 Purpose For More Information Chapter in the Cisco Unified Communications Manager Communications Manager Administration GuideCommunications Manager Administration Installing Cisco Unified IP Phones Refer to Cisco Unified IP Phone 6901 User Guide Administration and System GuidesTerminology Differences A P T E R Cisco Communications Manager Administration Guide Providing Power to the Cisco Unified IP Phone Power Type Guidelines Power GuidelinesPower Outage Obtaining Additional Information About Power Understanding Phone Configuration FilesPurpose Related Topics Understanding the Phone Startup ProcessObtaining an IP Address Method Address? Adding Phones with Auto-RegistrationAdding Phones with Auto-Registration and Taps Procedure Adding Phones Using the BAT Phone TemplateConverting a New Phone from Sccp to SIP Using Cisco Unified IP Phones with Different ProtocolsDeploying a Phone in an Sccp and SIP Environment Determining the MAC Address for a Cisco Unified IP PhoneNetwork Requirements Before You BeginNetwork and Access Ports Cisco Unified Communications Manager ConfigurationSpeakerphone Cisco Unified IP Phone 6911 Only HandsetSee the Network and Access Ports section on Installing the Cisco Unified IP PhoneCisco Unified IP Phone 6901 Cable Connections Cisco Unified IP Phone 6911 Cable Connections 3illustrates the footstand on the Cisco Unified IP Phone FootstandLower Viewing Angle Higher Viewing AngleVerifying the Phone Startup Process Configuring Startup Network SettingsMounting the Phone to the Wall Before You Begin Configuring Security on the Cisco Unified IP PhoneOption Description Configuring Settings on the Cisco Unified IP PhonePhone Settings Options Accessing the IVR and Configuring Your Phone Setting Accessing the Phone Configuration SettingsAction IVR Code Navigating Notes OL-23874-01 Configuring Features, Templates, Services, and Users Unified Communications Manager Feature Description Configuration ReferenceFeatures and Services Guide, Barge System Guide, Cisco Unified IP PhonesAdministration Guide, Directory Features and Services Guide BargeUnified Communications Manager Features Services GuideCommunications Manager Features Forward Maximum Hop Count service parameterManager Features and Services Guide Features and Services Guide,BargeConference Bridges chapter Codes and Forced Authorization CodesPoint Configuration chapter in the Cisco System Guide, Voice Mail Connectivity Number/Pattern Configuration chapterAdministration Guide, Message Waiting Configuration chapterPhone Configuration chapter Services Guide, MonitoringAdministration Guide, Cisco Unified IP Adding Users to Cisco Unified Communications Manager Administration Guide, Time PeriodAdministration Guide, Date/Time Group Administration Guide, Cisco Voice-MailUnified Communications Manager System Guide Giving Users Access to the User Options Web PagesManaging the User Options Web Pages Click Save Selected/Changes Specifying Options that Appear on the User Options Web Pages OL-23874-01 Monitoring the Cisco Unified IP Phone Remotely Http//IPaddress Accessing the Web Page for a PhoneDevice Information Disabling and Enabling Web Page AccessUDI Network SetupDescription Vlan Network Statistics Table below Device Logs Cations Manager Database section on Status MessagesMessage Description Possible Explanation and Action Adding Phones to the Cisco Unified CommuniMessage Description Possible Explanation and Action Message Description Possible Explanation and Action Streaming Statistics Streaming Statistics Area Items Configuring Settings on the Cisco Unified IP Phone chapter OL-23874-01 Resolving Startup Problems Troubleshooting and MaintenanceTroubleshooting and Maintenance Resolving Startup Problems Identifying Error Messages Cisco CallManager and Tftp Services Are Not Running Symptom Cisco Unified IP Phone Unable to Obtain IP Address Identifying Intermittent Network Outages Cisco Unified IP Phone Resets UnexpectedlyVerifying Dhcp Settings Verifying the Physical ConnectionEliminating DNS or Other Connectivity Errors Checking Static IP Address SettingsVerifying the Voice Vlan Configuration Verifying that the Phones Have Not Been Intentionally ResetSummary Explanation General Troubleshooting TipsChecking Power Connection Halfduxcollisionexceedthreshold Phone Configuration Settings section on page 4-2for detailsPerforming a Basic Reset, Performing a Factory Reset, Resetting or Restoring the Cisco Unified IP PhonePerforming a Basic Reset Performing a Factory ResetMonitoring the Voice Quality of Calls Using Voice Quality MetricsMetric Change Condition Troubleshooting TipsCleaning the Cisco Unified IP Phone Where to Go for More Troubleshooting InformationOL-23874-01 Providing Information to Users Via a Website How Users Access a Voice Messaging System How Users Configure Phone FeaturesSupporting International Users OL-23874-01 Specification Value or Range Physical and Operating Environment SpecificationsCable Specifications Pin Number Function Network and Access Port PinoutsNetwork Port Connector Access Port ConnectorOL-23874-01 Example User Information for These Procedures Basic Phone Administration StepsAdding a User From an External Ldap Directory Proceed to Configuring the Phone section on page D-3Proceed to the section Configuring the Phone, page D-3 Configuring the PhoneOL-23874-01 OL-23874-01 Click Device Associations Performing Final End User Configuration StepsClick Save OL-23874-01 Installing a Wall Mount for the Cisco Unified IP Phone Before You Begin Figure E-2 Preparing the Handset HookswitchNetwork Port on the Phone RJ45 Connector Installing the Phone on Wall Mount PlateFigure E-4 RJ45 Connector in the Wall Mount Jack Figure E-5 Mounting Holes Firmly slide the IP phone down into place Figure E-6 Phone bracket Installing the Bracket Figure E-8 Mounting the Wall Bracket Figure E-9 Attaching the Phone Bracket Figure E-10 Preparing the Handset Hookswitch Figure E-11 Attaching the Cables Figure E-12 Attaching the Phone to the Wall Bracket OL-23874-01 ADA Non-Lockable Wall Mount Kit for 6900 Series Cisco Unified IP Phone Non-Lockable Wall MountPackage includes these items ComponentsInstall Non-Lockable Wall Mount Kit for Phone Figure F-4 Mount the Wall Bracket Figure F-5 Attach Phone Bracket Proceed to Before You Begin, page E-2 Remove Phone from Non-Lockable Wall MountFigure F-7 Figure F-8 Protocol FeaturesProtocol Features Sccp SIP OL-23874-01 Numerics IN-2 IN-3 IN-4 IN-5 IN-6 IN-7 IN-8
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6901 specifications

Cisco Systems 6901 is a versatile, compact, and powerful router designed to meet the networking needs of small to medium-sized businesses, as well as enterprise branch offices. This model is part of Cisco's ISR (Integrated Services Router) portfolio, which is known for its capability to integrate multiple services into a single platform, ensuring high efficiency and cost-effectiveness.

One of the main features of the Cisco 6901 is its ability to support advanced routing protocols, including RIP, EIGRP, OSPF, and BGP. This versatility allows for seamless integration into various network architectures, facilitating efficient communication and data transfer across multiple locations. The device is also built to handle high-bandwidth applications, making it an ideal choice for businesses that rely on robust network performance.

In terms of connectivity, Cisco 6901 offers multiple Ethernet ports, supporting both 10/100/1000 Mbps speeds. This ensures that users can connect a variety of devices, ranging from office computers to network printers, all while maintaining optimal network performance. Additionally, the router supports both LAN and WAN interfaces, providing flexibility in deployment options.

Security is a crucial aspect of networking, and the Cisco 6901 does not disappoint in this regard. It comes equipped with advanced security features, including firewall capabilities, intrusion prevention, and VPN support. These features ensure that sensitive business data is protected from unauthorized access, while also providing secure remote access for employees.

Another essential characteristic of the Cisco 6901 is its support for various multimedia applications. The router comes with Quality of Service (QoS) features that prioritize voice, video, and data traffic, ensuring high-quality performance for applications such as VoIP and video conferencing. This is particularly valuable in today's business landscape, where effective communication is critical for success.

The Cisco 6901 is also designed for ease of management and configuration. It features a user-friendly interface that simplifies the setup process, along with comprehensive monitoring tools that enable administrators to keep an eye on network performance and address any issues proactively.

In summary, the Cisco Systems 6901 is a powerful, feature-rich router that combines advanced routing capabilities with robust security measures and multimedia support. Its flexibility, ease of management, and comprehensive service integration make it an excellent choice for businesses seeking to enhance their networking infrastructure. With the Cisco 6901, organizations can achieve efficient communication, secure data exchange, and high-performance network operations, positioning themselves well for future growth.
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