Cisco Systems 6901 manual Phone Configuration Settings section on page 4-2for details

Page 99

Chapter 7 Troubleshooting and Maintenance

General Troubleshooting Tips

Table 7-1

Cisco Unified IP Phone Troubleshooting (continued)

 

 

 

Summary

 

Explanation

 

 

Changing the telephone configuration.

By default, the network configuration options are locked to prevent users from

 

 

making changes that could impact their network connectivity. You must unlock the

 

 

network configuration options before you can configure them. See the “Accessing

 

 

the Phone Configuration Settings” section on page 4-2for details.

 

 

 

Phone resetting.

 

The phone resets when it loses contact with the Cisco Unified Communications

 

 

Manager software. This lost connection can be due to any network connectivity

 

 

disruption, including cable breaks, switch outages, and switch reboots.

 

 

Dual-Tone Multi-Frequency (DTMF)

When you are on a call that requires keypad input, if you press the keys too quickly,

delay.

 

some of them might not be recognized.

 

 

Codec mismatch between the phone

The RxType and the TxType statistics show the codec that is being used for a

and another device.

conversation between this Cisco Unified IP phone and the other device. The values

 

 

of these statistics should match. If they do not, verify that the other device can

 

 

handle the codec conversation, or that a transcoder is in place to handle the service.

 

 

Sound sample mismatch between the

The RxSize and the TxSize statistics show the size of the voice packets that are

phone and another device.

being used in a conversation between this Cisco Unified IP phone and the other

 

 

device. The values of these statistics should match.

 

 

Gaps in voice calls.

Check the AvgJtr and the MaxJtr statistics. A large variance between these statistics

 

 

might indicate a problem with jitter on the network or periodic high rates of network

 

 

activity.

 

 

Loopback condition.

A loopback condition can occur when the following conditions are met:

 

 

• The SW Port Configuration option in the Network Configuration menu on the

 

 

phone is set to 10 Half

 

 

(10-BaseT / half duplex)

 

 

• The phone receives power from an external power supply

 

 

• The phone is powered down (the power supply is disconnected)

 

 

In this case, the switch port on the phone can become disabled and the following

 

 

message will appear in the switch console log:

 

 

HALF_DUX_COLLISION_EXCEED_THRESHOLD

 

 

To resolve this problem, re-enable the port from the switch.

 

 

 

One-way audio.

 

When at least one person in a call does not receive audio, IP connectivity between

 

 

phones is not established. Check the configurations in routers and switches to ensure

 

 

that IP connectivity is properly configured.

 

 

Phone call cannot be established.

The phone does not have a DHCP IP address, is unable to register to Cisco Unified

 

 

Communications Manager, and shows a Configuring IP or Registering message.

 

 

Verify the following:

 

 

1. The Ethernet cable is attached.

 

 

2. The Cisco CallManager service is running on the Cisco Unified

 

 

Communications Manager server.

 

 

3. Both phones are registered to the same Cisco Unified Communications

 

 

Manager.

 

 

4. Audio server debug and capture logs are enabled for both phones. If needed,

 

 

enable Java debug.

 

 

 

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

 

OL-23874-01

7-9

 

 

 

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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 ManagerOverview of Supported Security Features Feature DescriptionPhone section on page 3-10for more information 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 Communications Manager Administration Guide Communications Manager AdministrationChapter in the Cisco Unified Communications Manager Installing Cisco Unified IP Phones User Guide Administration and System Guides Terminology DifferencesRefer to Cisco Unified IP Phone 6901 A P T E R Cisco Communications Manager Administration Guide Providing Power to the Cisco Unified IP Phone Power Guidelines Power OutagePower Type Guidelines 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 AngleConfiguring Startup Network Settings Mounting the Phone to the WallVerifying the Phone Startup Process Before You Begin Configuring Security on the Cisco Unified IP PhoneConfiguring Settings on the Cisco Unified IP Phone Phone Settings OptionsOption Description 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,BargeCodes and Forced Authorization Codes Point Configuration chapter in the CiscoConference Bridges chapter System Guide, Voice Mail Connectivity Number/Pattern Configuration chapterAdministration Guide, Message Waiting Configuration chapterServices Guide, Monitoring Administration Guide, Cisco Unified IPPhone Configuration chapter Adding Users to Cisco Unified Communications Manager Administration Guide, Time PeriodAdministration Guide, Date/Time Group Administration Guide, Cisco Voice-MailGiving Users Access to the User Options Web Pages Managing the User Options Web PagesUnified Communications Manager System Guide 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 ResetGeneral Troubleshooting Tips Checking Power ConnectionSummary Explanation 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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Manual 62 pages 9.7 Kb Manual 14 pages 29.4 Kb

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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