Cisco Systems 6901 General Troubleshooting Tips, Checking Power Connection, Summary Explanation

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Chapter 7 Troubleshooting and Maintenance

General Troubleshooting Tips

Step 3 On the Cisco Unified Communications Manager server, verify that the local host files have the correct Cisco Unified Communications Manager server name mapped to the correct IP address.

Step 4 From Cisco Unified Communications Manager, choose System > Server and verify that the server is referred to by its IP address and not by its DNS name.

Step 5 From Cisco Unified Communications Manager, choose Device > Phone > Find and verify that you have assigned the correct MAC address to this Cisco Unified IP Phone. For information about determining a MAC address, see the “Using Cisco Unified IP Phones with Different Protocols” section on page 2-11.

Step 6 Power cycle the phone.

Checking Power Connection

In most cases, a phone will restart if it powers up by using external power but loses that connection and switches to PoE. Similarly, a phone may restart if it powers up by using PoE and then gets connected to an external power supply.

General Troubleshooting Tips

Table 7-1provides general troubleshooting information for the Cisco Unified IP Phone.

Table 7-1

Cisco Unified IP Phone Troubleshooting

 

 

 

 

 

 

Summary

 

 

Explanation

 

 

 

 

 

Connecting a Cisco Unified IP Phone

 

Cisco does not support connecting an IP phone to another IP phone through the PC

 

to another Cisco Unified IP Phone.

 

port. Each IP phone should directly connect to a switch port. If phones are connected

 

 

 

 

together in a line (by using the PC port), the phones will not work.

 

 

 

 

 

Poor quality when calling digital cell

 

In Cisco Unified Communications Manager, you can configure the network to use

 

phones using the G.729 protocol.

 

the G.729 protocol (the default is G.711). When using G.729, calls between an IP

 

 

 

 

phone and a digital cellular phone will have poor voice quality. Use G.729 only

 

 

 

 

when absolutely necessary.

 

 

 

 

 

Prolonged broadcast storms cause

 

A prolonged Layer 2 broadcast storm (lasting several minutes) on the voice VLAN

 

IP phones to reset, or be unable to

 

may cause IP phones to reset, lose an active call, or be unable to initiate or answer

 

make or answer a call.

 

a call. Phones may not come up until a broadcast storm ends.

 

 

 

 

 

Moving a network connection from the

 

If you are powering your phone through the network connection, you must be

 

phone to a workstation.

 

careful if you decide to unplug the phone’s network connection and plug the cable

 

 

 

 

into a desktop computer.

 

 

 

 

 

 

 

 

 

 

 

Caution The computer’s network card cannot receive power through the network

 

 

 

 

 

 

connection; if power comes through the connection, the network card can

 

 

 

 

 

 

be destroyed. To protect a network card, wait 10 seconds or longer after

 

 

 

 

 

 

unplugging the cable from the phone before plugging it into a computer.

 

 

 

 

 

 

This delay gives the switch enough time to recognize that there is no

 

 

 

 

 

 

longer a phone on the line and to stop providing power to the cable.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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

7-8

OL-23874-01

 

 

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Contents Americas Headquarters Text Part Number OL-23874-01Page 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 Organization OverviewAudience Chapter DescriptionRelated Documentation Cisco Unified IP Phone 6900 SeriesCisco Product Security Overview Italic font Document ConventionsConvention Description Italic screen fontAn Overview of the Cisco Unified IP Phone Understanding the Cisco Unified IP Phone 6901 1shows the main components of the Cisco Unified IP PhoneOL-23874-01 2shows the main components of the Cisco Unified IP Phone OL-23874-01 Networking Protocol Purpose Usage Notes Dynamic Host Configuration Protocol chapterWhat Networking Protocols are Used? Communications Manager System GuideSee the LLDP-MED and Cisco Discovery Protocol Supporting 802.1X Authentication on CiscoUnified IP Phones section on page 1-17for 701/technologieswhitepaper0900aecd804cd46dSystem Guide Communications Manager Security GuideCisco Unified Communications Manager Related TopicsFeature Overview Configuring Telephony FeaturesProviding Users with Feature Information Related TopicOL-23874-01 Communications Manager Refer to the Troubleshooting Guide for Cisco UnifiedTopic Reference Security, refer to the Cisco Unified Communications ManagerPhone section on page 3-10for more information Overview of Supported Security FeaturesFeature Description IP Phones section on page 1-17for more information Voice Quality MetricsUnderstanding Security Profiles Establishing and Identifying Protected Calls Supporting 802.1X Authentication on Cisco Unified IP Phones OverviewRequired 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 Understanding Phone Configuration Files Obtaining Additional Information About PowerUnderstanding the Phone Startup Process Purpose Related TopicsObtaining an IP Address Adding Phones with Auto-Registration Method Address?Adding Phones with Auto-Registration and Taps Adding Phones Using the BAT Phone Template ProcedureUsing Cisco Unified IP Phones with Different Protocols Converting a New Phone from Sccp to SIPDetermining the MAC Address for a Cisco Unified IP Phone Deploying a Phone in an Sccp and SIP EnvironmentBefore You Begin Network RequirementsCisco Unified Communications Manager Configuration Network and Access PortsHandset Speakerphone Cisco Unified IP Phone 6911 OnlyInstalling the Cisco Unified IP Phone See the Network and Access Ports section onCisco Unified IP Phone 6901 Cable Connections Cisco Unified IP Phone 6911 Cable Connections Footstand 3illustrates the footstand on the Cisco Unified IP PhoneHigher Viewing Angle Lower Viewing AngleVerifying the Phone Startup Process Configuring Startup Network SettingsMounting the Phone to the Wall Configuring Security on the Cisco Unified IP Phone Before You BeginOption Description Configuring Settings on the Cisco Unified IP PhonePhone Settings Options Accessing the Phone Configuration Settings Accessing the IVR and Configuring Your Phone SettingAction IVR Code Navigating Notes OL-23874-01 Configuring Features, Templates, Services, and Users System Guide, Cisco Unified IP Phones Feature Description Configuration ReferenceFeatures and Services Guide, Barge Unified Communications ManagerServices Guide Features and Services Guide BargeUnified Communications Manager Features Administration Guide, DirectoryFeatures and Services Guide,Barge Forward Maximum Hop Count service parameterManager Features and Services Guide Communications Manager FeaturesConference Bridges chapter Codes and Forced Authorization CodesPoint Configuration chapter in the Cisco Configuration chapter Number/Pattern Configuration chapterAdministration Guide, Message Waiting System Guide, Voice Mail ConnectivityPhone Configuration chapter Services Guide, MonitoringAdministration Guide, Cisco Unified IP Administration Guide, Cisco Voice-Mail Administration Guide, Time PeriodAdministration Guide, Date/Time Group Adding Users to Cisco Unified Communications ManagerUnified 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 Accessing the Web Page for a Phone Http//IPaddressDisabling and Enabling Web Page Access Device InformationNetwork Setup UDIDescription Vlan Network Statistics Table below Device Logs Adding Phones to the Cisco Unified Communi Status MessagesMessage Description Possible Explanation and Action Cations Manager Database section onMessage 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 Troubleshooting and Maintenance Resolving Startup ProblemsTroubleshooting 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 Verifying the Physical Connection Cisco Unified IP Phone Resets UnexpectedlyVerifying Dhcp Settings Identifying Intermittent Network OutagesVerifying that the Phones Have Not Been Intentionally Reset Checking Static IP Address SettingsVerifying the Voice Vlan Configuration Eliminating DNS or Other Connectivity ErrorsSummary Explanation General Troubleshooting TipsChecking Power Connection Phone Configuration Settings section on page 4-2for details HalfduxcollisionexceedthresholdPerforming a Factory Reset Resetting or Restoring the Cisco Unified IP PhonePerforming a Basic Reset Performing a Basic Reset, Performing a Factory Reset,Using Voice Quality Metrics Monitoring the Voice Quality of CallsTroubleshooting Tips Metric Change ConditionWhere to Go for More Troubleshooting Information Cleaning the Cisco Unified IP PhoneOL-23874-01 Providing Information to Users Via a Website How Users Configure Phone Features How Users Access a Voice Messaging SystemSupporting International Users OL-23874-01 Physical and Operating Environment Specifications Specification Value or RangeCable Specifications Access Port Connector Network and Access Port PinoutsNetwork Port Connector Pin Number FunctionOL-23874-01 Basic Phone Administration Steps Example User Information for These ProceduresProceed to Configuring the Phone section on page D-3 Adding a User From an External Ldap DirectoryConfiguring the Phone Proceed to the section Configuring the Phone, page D-3OL-23874-01 OL-23874-01 Performing Final End User Configuration Steps Click Device AssociationsClick Save OL-23874-01 Installing a Wall Mount for the Cisco Unified IP Phone Figure E-2 Preparing the Handset Hookswitch Before You BeginInstalling the Phone on Wall Mount Plate Network Port on the Phone RJ45 ConnectorFigure 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 Cisco Unified IP Phone Non-Lockable Wall Mount ADA Non-Lockable Wall Mount Kit for 6900 SeriesComponents Package includes these itemsInstall Non-Lockable Wall Mount Kit for Phone Figure F-4 Mount the Wall Bracket Figure F-5 Attach Phone Bracket Remove Phone from Non-Lockable Wall Mount Proceed to Before You Begin, page E-2Figure F-7 Figure F-8 Features ProtocolProtocol 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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