Cisco 3951 Instruction Manual

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Cisco Unified SIP Phone 3951
Administration Guide for Cisco
Unified CallManager 5.1
Text Part Number: OL-10969-01

THE SPECIFICATIONS AND INFORMATION REGARDING THE PRODUCTS IN THIS MANUAL ARE SUBJECT TO CHANGE WITHOUT
NOTICE. ALL STATEMENTS, INFORMATION, AND RECOMMENDATIONS IN THIS MANUAL ARE BELIEVED TO BE ACCURATE BUT
ARE PRESENTED WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED. USERS MUST TAKE FULL RESPONSIBILITY FOR
THEIR APPLICATION OF ANY PRODUCTS.
THE SOFTWARE LICENSE AND LIMITED WARRANTY FOR THE ACCOMPANYING PRODUCT ARE SET FORTH IN THE INFORMATION
PACKET THAT SHIPPED WITH THE PRODUCT AND ARE INCORPORATED HEREIN BY THIS REFERENCE. IF YOU ARE UNABLE TO
LOCATE THE SOFTWARE LICENSE OR LIMITED WARRANTY, CONTACT YOUR CISCO REPRESENTATIVE FOR A COPY.
The following information is for FCC compliance of Class A devices: This equipment has been tested and found to comply with the limits for a Class
A digital device, pursuant to part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference when
the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio-frequency energy and, if not installed
and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a
residential area is likely to cause harmful interference, in which case users will be required to correct the interference at their own expense.
The following information is for FCC compliance of Class B devices: The equipment described in this manual generates and may radiate
radio-frequency energy. If it is not installed in accordance with Cisco’s installation instructions, it may cause interference with radio and television
reception. This equipment has been tested and found to comply with the limits for a Class B digital device in accordance with the specifications in
part 15 of the FCC rules. These specifications are designed to provide reasonable protection against such interference in a residential installation.
However, there is no guarantee that interference will not occur in a particular installation.
Modifying the equipment without Cisco’s written authorization may result in the equipment no longer complying with FCC requirements for Class
A or Class B digital devices. In that event, your right to use the equipment may be limited by FCC regulations, and you may be required to correct
any interference to radio or television communications at your own expense.
You can determine whether your equipment is causing interference by turning it off. If the interference stops, it was probably caused by the Cisco
equipment or one of its peripheral devices. If the equipment causes interference to radio or television reception, try to correct the interference by
using one or more of the following measures:
• Turn the television or radio antenna until the interference stops.
• Move the equipment to one side or the other of the television or radio.
• Move the equipment farther away from the television or radio.
• Plug the equipment into an outlet that is on a different circuit from the television or radio. (That is, make certain the equipment and the television
or radio are on circuits controlled by different circuit breakers or fuses.)
Modifications to this product not authorized by Cisco Systems, Inc. could void the FCC approval and negate your authority to operate the product.
The Cisco implementation of TCP header compression is an adaptation of a program developed by the University of California, Berkeley (UCB) as
part of UCB’s public domain version of the UNIX operating system. All rights reserved. Copyright © 1981, Regents of the University of California.
NOTWITHSTANDING ANY OTHER WARRANTY HEREIN, ALL DOCUMENT FILES AND SOFTWARE OF THESE SUPPLIERS ARE
PROVIDED “AS IS” WITH ALL FAULTS. CISCO AND THE ABOVE-NAMED SUPPLIERS DISCLAIM ALL WARRANTIES, EXPRESSED
OR IMPLIED, INCLUDING, WITHOUT LIMITATION, THOSE OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
NONINFRINGEMENT OR ARISING FROM A COURSE OF DEALING, USAGE, OR TRADE PRACTICE.
IN NO EVENT SHALL CISCO OR ITS SUPPLIERS BE LIABLE FOR ANY INDIRECT, SPECIAL, CONSEQUENTIAL, OR INCIDENTAL
DAMAGES, INCLUDING, WITHOUT LIMITATION, LOST PROFITS OR LOSS OR DAMAGE TO DATA ARISING OUT OF THE USE OR
INABILITY TO USE THIS MANUAL, EVEN IF CISCO OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH
DAMAGES.

Any Internet Protocol (IP) addresses used in this document are not intended to be actual addresses. Any examples, command display output, and
figures included in the document are shown for illustrative purposes only. Any use of actual IP addresses in illustrative content is unintentional and
coincidental.
Cisco Unified SIP Phone 3951 Administration Guide for Cisco Unified CallManager 5.1
© 2007 Cisco Systems, Inc. All rights reserved.
CCVP, the Cisco Logo, and the Cisco Square Bridge logo are trademarks of Cisco Systems, Inc.; Changing the Way We Work, Live, Play, and Learn is a
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All other trademarks mentioned in this document or Website are the property of their respective owners. The use of the word partner does not imply a
partnership relationship between Cisco and any other company. (0612R)

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CONTENTS
Preface xi
Overview xi
Audience xi
Objectives xii
Organization xii
Related Documentation xiii
Obtaining Documentation xiv
Cisco.com xiv
Product Documentation DVD xiv
Ordering Documentation xv
Documentation Feedback xv
Cisco Product Security Overview xv
Reporting Security Problems in Cisco Products xvi
Product Alerts and Field Notices xvii
Obtaining Technical Assistance xvii
Cisco Technical Support & Documentation Website xvii
Submitting a Service Request xviii
Definitions of Service Request Severity xix
Obtaining Additional Publications and Information xx
Document Conventions xxi
CHAPTER 1An Overview of the Cisco Unified IP Phone 1-1
Understanding the Cisco Unified SIP Phone 3951 1-2
What Networking Protocols Are Used? 1-3

Contents
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What Features are Supported on the Cisco Unified SIP Phone 3951? 1-6
Feature Overview 1-7
Configuring Telephony Features 1-7
Configuring Network Parameters Using the Cisco Unified IP Phone 1-8
Providing Users with Feature Information 1-9
Understanding Security Features for Cisco Unified SIP Phone 3951 1-9
Overview of Configuring and Installing Cisco Unified IP Phones 1-9
Configuring Cisco Unified IP Phones in Cisco Unified CallManager 1-10
Checklist for Configuring the Cisco Unified IP Phone in Cisco Unified
CallManager 1-10
Installing Cisco Unified IP Phones 1-13
Checklist for Installing the Cisco Unified IP Phone 1-14
CHAPTER 2Preparing to Install the Cisco Unified IP Phone on Your Network 2-1
Understanding How the Cisco Unified IP Phone Interacts with Cisco
Unified CallManager 2-2
Providing Power to the Cisco Unified IP Phone 2-3
Power Guidelines 2-3
Cisco Unified IP Phone Power Injector 2-4
Power Outage 2-5
Obtaining Additional Information about Power 2-5
Understanding Phone Configuration Files 2-6
SIP Dial Rules 2-7
Understanding the Phone Startup Process 2-7
Adding Phones to the Cisco Unified CallManager Database 2-9
Adding Phones with Auto-Registration 2-10
Adding Phones with Cisco Unified CallManager Administration 2-11
Adding Phones with BAT 2-11
Determining the MAC Address for a Cisco Unified IP Phone 2-12

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Contents
CHAPTER 3Setting Up the Cisco Unified IP Phone 3-1
Before You Begin 3-1
Network Requirements 3-2
Cisco Unified CallManager Configuration 3-2
Safety 3-3
Understanding the Cisco Unified IP Phone Components 3-4
Network Port 3-5
Handset 3-5
Speakerphone 3-5
Headset 3-5
Audio Quality Subjective to User 3-6
Connecting a Headset 3-6
Installing the Cisco Unified IP Phone 3-7
Mounting the Phone to the Wall 3-9
Verifying the Phone Startup Process 3-10
Configuring Startup Network Settings 3-11
CHAPTER 4Configuring Settings on the Cisco Unified IP Phone 4-1
Editing Values 4-1
Unlocking and Locking Options 4-2
Configuration Menus on the Cisco Unified IP Phone 4-3
Configuring User Preference 4-3
Configuring Network Settings 4-3
Cisco Unified CallManager Options 4-7
SIP Configuration Menu 4-8
Additional Configurations for the Cisco SIP Phone 3951 4-9
Configuring a SIP Phone Dial Plan 4-9
Enabling Cisco Unified SIP Phone 3951 to Use iDTMF 4-9

Contents
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CHAPTER 5Configuring Features and Users 5-1
Telephony Features Available for the Cisco Unified IP Phone 5-1
Adding Users to Cisco Unified CallManager 5-4
CHAPTER 6Viewing Status, Statistics, and Firmware Information on the Cisco
Unified IP Phone 6-1
Network Statistics Screen 6-1
Firmware Versions Screen 6-2
CHAPTER 7Troubleshooting and Maintenance 7-1
Resolving Startup Problems 7-1
Symptom: The Cisco Unified IP Phone Does Not Go Through its Normal
Startup Process 7-2
Symptom: The Cisco Unified IP Phone Does Not Register with Cisco
Unified CallManager 7-3
Identifying Error Messages 7-3
Registering the Phone with Cisco Unified CallManager 7-4
Checking Network Connectivity 7-4
Verifying TFTP Server Settings 7-4
Verifying IP Addressing and Routing 7-5
Verifying DNS Settings 7-5
Verifying Cisco Unified CallManager Settings 7-5
Cisco Unified CallManager and TFTP Services Are Not Running 7-6
Creating a New Configuration File 7-6
Symptom: Cisco Unified IP Phone Unable to Obtain IP Address 7-8
Cisco Unified IP Phone Resets Unexpectedly 7-8
Verifying Physical Connection 7-8
Identifying Intermittent Network Outages 7-9
Verifying DHCP Settings 7-9
Checking Static IP Address Settings 7-9

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Contents
Verifying Voice VLAN Configuration 7-10
Verifying that the Phones Have Not Been Intentionally Reset 7-10
Eliminating DNS or Other Connectivity Errors 7-11
General Troubleshooting Tips for the Cisco Unified IP Phone 7-12
Resetting or Restoring the Cisco Unified IP Phone 7-16
Performing a Basic Reset 7-16
Where to Go for More Troubleshooting Information 7-16
Cleaning the Cisco Unified IP Phone 7-17
Providing Information to Users Via a Website A-1
How Users Obtain Support for the Cisco Unified IP Phone A-1
How Users Get Copies of Cisco Unified IP Phone Manuals A-2
How Users Access a Voice Messaging System A-2
Supporting International Users B-1
Adding Language Overlays to Phone Buttons B-1
Installing the Cisco Unified CallManager Locale Installer B-2
Technical Specifications C-1
Physical and Operating Environment Specifications C-1
Network Port Pinouts C-2
I NDEX

Contents
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Preface
Overview
The Cisco Unified SIP Phone 3951 Administration Guide for Cisco Unified
CallManager 5.0 provides the information you need to understand, install,
configure, manage, and troubleshoot the phones on a Voice-over-IP (VoIP)
network.
Because of the complexity of an IP telephony network, this guide does not provide
complete and detailed information for procedures that you need to perform in
Cisco Unified CallManager or other network devices.
Audience
Network engineers, system administrators, or telecom engineers should review
this guide to learn the steps required to properly set up the
Cisco Unified SIP Phone 3951 on the network.
The tasks described are considered to be administration-level tasks and are not
intended for end-users of the phones. Many of the tasks involve configuring
network settings and affect the phone’s ability to function in the network.
Because of the close interaction between the Cisco Unified IP Phone and
Cisco Unified CallManager, these tasks require familiarity with
Cisco Unified CallManager.

Preface
Objectives
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Objectives
This guide provides the required steps to get the Cisco Unified IP Phone up and
running on a Voice-over-IP (VoIP) network.
Organization
This manual is organized as follows:
Chapter Description
Chapter 1, “An Overview of the
Cisco Unified IP Phone”
Provides a conceptual overview and description of
the Cisco Unified IP Phone.
Chapter 2, “Preparing to Install the Cisco
Unified IP Phone on Your Network”
Describes how the IP Phone interacts with other
key IP telephony components, and provides an
overview of the tasks required prior to installation.
Chapter 3, “Setting Up the Cisco
Unified IP Phone”
Describes how to properly and safely install and
configure the Cisco Unified IP Phone on your
network.
Chapter 4, “Configuring Settings on the Cisco
Unified IP Phone”
Describes how to configure network settings,
verify status, and make global changes to the
Cisco Unified IP Phone.
Chapter 5, “Configuring Features and Users” Provides an overview of procedures for
configuring telephony features, configuring
directories, configuring phone button and softkey
templates, setting up services, and adding users to
Cisco Unified CallManager.
Chapter 6, “Viewing Status, Statistics, and
Firmware Information on the Cisco
Unified IP Phone”
Provides an overview of procedures for
configuring telephony features and adding users to
Cisco Unified CallManager.
Chapter 7, “Troubleshooting and Maintenance” Provides tips for troubleshooting the
Cisco IP Phones and the Expansion Module.

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Preface
Related Documentation
Related Documentation
For more information about Cisco Unified IP Phones or
Cisco Unified CallManager, refer to these publications, which are available at the
following location:
http://www.cisco.com/univercd/cc/td/doc/product/voice/index.htm
•Find Your Phone Guide on the Web
•Cisco Unified SIP Phone 3951 User Guide
•Cisco Unified SIP Phone 3951 Graphical Installation Guide
•Cisco United SIP Phone 3951 Release Notes for Cisco Unified CallManager.
Cisco Unified CallManager Administration
•Cisco Unified CallManager Administration Guide
•Cisco Unified CallManager System Guide
•Cisco Unified CallManager Serviceability Administration Guide
•Cisco Unified CallManager Serviceability System Guide
•Cisco Unified CallManager Bulk Administration Guide
Cisco IP Phones Services and Features
•Personal Directory Configuration Guide
Appendix A, “Providing Information to Users Via
a Website”
Provides suggestions for setting up a website for
providing users with important information about
their Cisco Unified IP Phones.
Appendix B, “Supporting International Users” Provides information about setting up phones in
non-English environments.
Appendix C, “Technical Specifications” Provides technical specifications of the Cisco
Unified IP Phone.
Index Provides reference information.
Chapter Description

Preface
Obtaining Documentation
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•Cisco Unified CallManager Features and Services Guide
Obtaining Documentation
Cisco documentation and additional literature are available on Cisco.com. This
section explains the product documentation resources that Cisco offers.
Cisco.com
You can access the most current Cisco documentation at this URL:
http://www.cisco.com/techsupport
You can access the Cisco website at this URL:
http://www.cisco.com
You can access international Cisco websites at this URL:
http://www.cisco.com/public/countries_languages.shtml
Product Documentation DVD
The Product Documentation DVD is a library of technical product documentation
on a portable medium. The DVD enables you to access installation, configuration,
and command guides for Cisco hardware and software products. With the DVD,
you have access to the HTML documentation and some of the PDF files found on
the Cisco website at this URL:
http://www.cisco.com/univercd/home/home.htm
The Product Documentation DVD is created and released regularly. DVDs are
available singly or by subscription. Registered Cisco.com users can order a
Product Documentation DVD (product number DOC-DOCDVD= or
DOC-DOCDVD=SUB) from Cisco Marketplace at the Product Documentation
Store at this URL:
http://www.cisco.com/go/marketplace/docstore

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Preface
Documentation Feedback
Ordering Documentation
You must be a registered Cisco.com user to access Cisco Marketplace. Registered
users may order Cisco documentation at the Product Documentation Store at this
URL:
http://www.cisco.com/go/marketplace/docstore
If you do not have a user ID or password, you can register at this URL:
http://tools.cisco.com/RPF/register/register.do
Documentation Feedback
You can provide feedback about Cisco technical documentation on the
Cisco Technical Support & Documentation site area by entering your comments
in the feedback form available in every online document.
Cisco Product Security Overview
Cisco provides a free online Security Vulnerability Policy portal at this URL:
http://www.cisco.com/en/US/products/products_security_vulnerability_policy.ht
ml
From this site, you will find information about how to do the following:
•Report security vulnerabilities in Cisco products
•Obtain assistance with security incidents that involve Cisco products
•Register to receive security information from Cisco
A current list of security advisories, security notices, and security responses for
Cisco products is available at this URL:
http://www.cisco.com/go/psirt

Preface
Cisco Product Security Overview
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To see security advisories, security notices, and security responses as they are
updated in real time, you can subscribe to the Product Security Incident Response
Team Really Simple Syndication (PSIRT RSS) feed. Information about how to
subscribe to the PSIRT RSS feed is found at this URL:
http://www.cisco.com/en/US/products/products_psirt_rss_feed.html
Reporting Security Problems in Cisco Products
Cisco is committed to delivering secure products. We test our products internally
before we release them, and we strive to correct all vulnerabilities quickly. If you
think that you have identified a vulnerability in a Cisco product, contact PSIRT:
•For emergencies only—[e-mail]
An emergency is either a condition in which a system is under active attack
or a condition for which a severe and urgent security vulnerability should be
reported. All other conditions are considered nonemergencies.
•For nonemergencies — [e-mail]
In an emergency, you can also reach PSIRT by telephone:
•1 877 228-7302
•1 408 525-6532
Tip We encourage you to use Pretty Good Privacy (PGP) or a compatible product (for
example, GnuPG) to encrypt any sensitive information that you send to Cisco.
PSIRT can work with information that has been encrypted with PGP versions 2.x
through 9.x.
Never use a revoked encryption key or an expired encryption key. The correct
public key to use in your correspondence with PSIRT is the one linked in the
Contact Summary section of the Security Vulnerability Policy page at this URL:
http://www.cisco.com/en/US/products/products_security_vulnerability_policy.ht
ml
The link on this page has the current PGP key ID in use.

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Preface
Product Alerts and Field Notices
If you do not have or use PGP, contact PSIRT to find other means of encrypting
the data before sending any sensitive material.
Product Alerts and Field Notices
Modifications to or updates about Cisco products are announced in Cisco Product
Alerts and Cisco Field Notices. You can receive Cisco Product Alerts and Cisco
Field Notices by using the Product Alert Tool on Cisco.com. This tool enables you
to create a profile and choose those products for which you want to receive
information.
To access the Product Alert Tool, you must be a registered Cisco.com user. (To
register as a Cisco.com user, go to this URL:
http://tools.cisco.com/RPF/register/register.do) Registered users can access the
tool at this URL:
http://tools.cisco.com/Support/PAT/do/ViewMyProfiles.do?local=en
Obtaining Technical Assistance
Cisco Technical Support provides 24-hour-a-day award-winning technical
assistance. The Cisco Technical Support & Documentation website on Cisco.com
features extensive online support resources. In addition, if you have a valid
Cisco service contract, Cisco Technical Assistance Center (TAC) engineers
provide telephone support. If you do not have a valid Cisco service contract,
contact your reseller.
Cisco Technical Support & Documentation Website
The Cisco Technical Support & Documentation website provides online
documents and tools for troubleshooting and resolving technical issues with
Cisco products and technologies. The website is available 24 hours a day at
this URL:
http://www.cisco.com/techsupport

Preface
Obtaining Technical Assistance
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Access to all tools on the Cisco Technical Support & Documentation website
requires a Cisco.com user ID and password. If you have a valid service contract
but do not have a user ID or password, you can register at this URL:
http://tools.cisco.com/RPF/register/register.do
Note Use the Cisco Product Identification Tool to locate your product serial number
before submitting a request for service online or by phone. You can access this
tool from the Cisco Technical Support & Documentation website by clicking the
Tools & Resources link, clicking the All Tools (A-Z) tab, and then choosing
Cisco Product Identification Tool from the alphabetical list. This tool offers
three search options: by product ID or model name; by tree view; or, for certain
products, by copying and pasting show command output. Search results show an
illustration of your product with the serial number label location highlighted.
Locate the serial number label on your product and record the information before
placing a service call.
Tip Displaying and Searching on Cisco.com
If you suspect that the browser is not refreshing a web page, force the browser to
update the web page by holding down the Ctrl key while pressing F5.
To find technical information, narrow your search to look in technical
documentation, not the entire Cisco.com website. On the Cisco.com home page,
click the Advanced Search link under the Search box and then click the
Technical Support & Documentation radio button.
To provide feedback about the Cisco.com website or a particular technical
document, click Contacts & Feedback at the top of any Cisco.com web page.
Submitting a Service Request
Using the online TAC Service Request Tool is the fastest way to open S3 and S4
service requests. (S3 and S4 service requests are those in which your network is
minimally impaired or for which you require product information.) After you
describe your situation, the TAC Service Request Tool provides recommended

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Preface
Obtaining Technical Assistance
solutions. If your issue is not resolved using the recommended resources, your
service request is assigned to a Cisco engineer. The TAC Service Request Tool is
located at this URL:
http://www.cisco.com/techsupport/servicerequest
For S1 or S2 service requests, or if you do not have Internet access, contact the
Cisco TAC by telephone. (S1 or S2 service requests are those in which your
production network is down or severely degraded.) Cisco engineers are assigned
immediately to S1 and S2 service requests to help keep your business operations
running smoothly.
To open a service request by telephone, use one of the following numbers:
Asia-Pacific: [phone]
Australia: 1 800 805 227
EMEA: [phone]
USA: 1 800 553 2447
For a complete list of Cisco TAC contacts, go to this URL:
http://www.cisco.com/techsupport/contacts
Definitions of Service Request Severity
To ensure that all service requests are reported in a standard format, Cisco has
established severity definitions.
Severity 1 (S1)—An existing network is “down” or there is a critical impact to
your business operations. You and Cisco will commit all necessary resources
around the clock to resolve the situation.
Severity 2 (S2)—Operation of an existing network is severely degraded, or
significant aspects of your business operations are negatively affected by
inadequate performance of Cisco products. You and Cisco will commit full-time
resources during normal business hours to resolve the situation.
Severity 3 (S3)—Operational performance of the network is impaired while most
business operations remain functional. You and Cisco will commit resources
during normal business hours to restore service to satisfactory levels.
Severity 4 (S4)—You require information or assistance with Cisco product
capabilities, installation, or configuration. There is little or no effect on your
business operations.

Preface
Obtaining Additional Publications and Information
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Obtaining Additional Publications and Information
Information about Cisco products, technologies, and network solutions is
available from various online and printed sources.
•The Cisco Online Subscription Center is the website where you can sign up
for a variety of Cisco e-mail newsletters and other communications. Create a
profile and then select the subscriptions that you would like to receive. To
visit the Cisco Online Subscription Center, go to this URL:
http://www.cisco.com/offer/subscribe
•The Cisco Product Quick Reference Guide is a handy, compact reference tool
that includes brief product overviews, key features, sample part numbers, and
abbreviated technical specifications for many Cisco products that are sold
through channel partners. It is updated twice a year and includes the latest
Cisco channel product offerings. To order and find out more about the
Cisco Product Quick Reference Guide, go to this URL:
http://www.cisco.com/go/guide
•Cisco Marketplace provides a variety of Cisco books, reference guides,
documentation, and logo merchandise. Visit Cisco Marketplace, the company
store, at this URL:
http://www.cisco.com/go/marketplace/
•Cisco Press publishes a wide range of general networking, training, and
certification titles. Both new and experienced users will benefit from these
publications. For current Cisco Press titles and other information, go to
Cisco Press at this URL:
http://www.ciscopress.com
•Internet Protocol Journal is a quarterly journal published by Cisco Systems
for engineering professionals involved in designing, developing, and
operating public and private internets and intranets. You can access the
Internet Protocol Journal at this URL:
http://www.cisco.com/ipj
•Networking products offered by Cisco Systems, as well as customer support
services, can be obtained at this URL:
http://www.cisco.com/en/US/products/index.html