Cisco Unified SIP Phone 3905 Administration Guide for Cisco Unified Communications Manager 8.6 (SIP)
Cisco Unified IP Phone
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Cisco Unified IP Phone

Cisco Unified IP Phone

The Cisco Unified SIP Phone 3905 provides voice communication over an Internet Protocol (IP) network. The Cisco Unified IP Phone functions much like a digital business phone, allowing you to place and receive phone calls. In addition, the Cisco Unified SIP Phone 3905 supports features such as mute, hold, transfer, conference, call forward, and more.

A Cisco Unified IP Phone, like other network devices, must be configured and managed. These phones encode G.711a, G.711µ, G.729a, and G.729ab, and decode G.711a, G.711µ, G.729, G.729a, and G.729ab.


Caution


Using a cell, mobile, or GSM phone, or two-way radio in close proximity to a Cisco Unified IP Phone might cause interference. For more information, refer to the manufacturer’s documentation of the interfering device.


This chapter includes the following topics:

Your Phone

Buttons and Hardware

1

Phone screen

Shows information about your phone such as directory number, active call, and phone menu listings.

2

Light strip

Indicates an incoming call (flashing red) or new voice message (steady red).

3

Navigation bar and Select/Feature button

The Navigation bar allows you to scroll through menus and highlight items. The Select button (in the middle of the Navigation bar) allows you to select a highlighted item.

When the phone is off-hook, the Select button functions as the Feature button. You can access these features:

  • Call Forward All: Allows you to forward a call.
  • Voice Mail: Allows you access voice mails.
  • Call Pickup: Allows you to answer a call that is ringing on a co-worker's phone.
  • Group Call Pickup: Allows you to answer a call that is ringing in another call group.

4

Applications button

Opens or closes the Applications menu. Use it to access call history, user preferences, phone settings, and phone model information.

5

Transfer button

Transfers a call.

6

Hold/Resume button

Places an active call on hold or resumes a held call.

7

Keypad

Allows you to dial phone numbers.

8

Speakerphone button

Selects the speakerphone as the default audio path and initiates a new call, picks up an incoming call, or ends a call. The speakerphone audio path does not change until a new default audio path is selected (for example, by picking up the handset).

9

Volume button

Controls the handset and speakerphone volume (off-hook) and the ringer volume (on hook).

10

Mute button

Toggles the microphone on or off.

11

Redial button

Dials the last dialed number.

12

Back button

Returns to the previous screen or menu.

13

Handset

Phone handset.

Phone Screen

1

Header

Displays date and time. Also displays line information such as voicemail and missed calls. When using the Applications menu, displays phone menu listings.

2

Line details and other phone information

Displays the directory number. During a call, also displays details for the active line. If not on a call, also displays line text label and other information such as placed calls and phone menu listings.

Phone Connections

Use the following figure to connect the phone to the network.

1

DC adapter port (DC 4.2V).

4

Network port (10/100 SW) connection. IEEE 802.3af power enabled.

2

AC-to-DC power supply (optional).

5

Access port (10/100 PC) connection.

3

AC power wall connection.

6

Handset connection.

Footstand

The Cisco Unified IP Phone 3905 has a foldable footstand. When the footstand is unfolded, it gives the phone an elevated viewing angle.

Adjust Handset Rest

If your phone is wall-mounted, you may need to adjust the handset rest to ensure that the receiver does not slip out of the cradle.

Procedure
    Step 1   Remove the handset from the cradle and pull the plastic tab from the handset rest.
    Step 2   Rotate the tab 180 degrees.
    Step 3   Hold the tab between two fingers, with the corner notches facing you.
    Step 4   Line up the tab with the slot in the cradle and press the tab evenly into the slot. An extension protrudes from the top of the rotated tab.
    Step 5   Return the handset to the handset rest.

    Supported Networking Protocols

    Cisco Unified IP Phones support several industry-standard and Cisco networking protocols required for voice communication. The following table provides an overview of the networking protocols that the Cisco Unified SIP Phone 3905 support.

    Table 1 Supported Networking Protocols on the Cisco Unified IP Phone

    Networking Protocol

    Purpose

    Usage Notes

    Cisco Discovery Protocol (CDP)

    CDP is a device-discovery protocol that runs on all Cisco-manufactured equipment.

    Using CDP, a device can advertise its existence to other devices and receive information about other devices in the network.

    The Cisco Unified IP Phone uses CDP to communicate information such as auxiliary VLAN ID, per port power management details, and Quality of Service (QoS) configuration information with the Cisco Catalyst switch.

    Dynamic Host Configuration Protocol (DHCP)

    DHCP dynamically allocates and assigns an IP address to network devices.

    DHCP enables you to connect an IP phone into the network and have the phone become operational without your needing to manually assign an IP address or to configure additional network parameters.

    DHCP is enabled by default. If disabled, you must manually configure the IP address, subnet mask, gateway, and a TFTP server on each phone locally.

    Cisco recommends that you use DHCP custom option 150. With this method, you configure the TFTP server IP address as the option value. For additional supported DHCP configurations, go to the "Dynamic Host Configuration Protocol" chapter and the "Cisco TFTP" chapter in the Cisco Unified Communications Manager System Guide.

    Note   

    If you cannot use option 150, you may try using DHCP option 66.

    Hypertext Transfer Protocol (HTTP)

    HTTP is the standard way of transferring information and moving documents across the Internet and the web.

    Cisco Unified IP Phones use HTTP for troubleshooting purposes.

    IEEE 802.1X

    The IEEE 802.1X standard defines a client-server-based access control and authentication protocol that restricts unauthorized clients from connecting to a LAN through publicly accessible ports.

    Until the client is authenticated, 802.1X access control allows only Extensible Authentication Protocol over LAN (EAPOL) traffic through the port to which the client is connected. After authentication is successful, normal traffic can pass through the port.

    The Cisco Unified IP Phone implements the IEEE 802.1X standard by providing support for the MD5 authentication method.

    When 802.1X authentication is enabled on the phone, you should disable the voice VLAN. See the Security Configuration Menu for additional information.

    Internet Protocol (IP)

    IP is a messaging protocol that addresses and sends packets across the network.

    To communicate using IP, network devices must have an assigned IP address, subnet, and gateway.

    IP addresses, subnets, and gateways identifications are automatically assigned if you are using the Cisco Unified IP Phone with Dynamic Host Configuration Protocol (DHCP). If you are not using DHCP, you must manually assign these properties to each phone locally.

    Link Layer Discovery Protocol (LLDP)

    LLDP is a standardized network discovery protocol (similar to CDP) that is supported on some Cisco and third-party devices.

    The Cisco Unified IP Phone supports LLDP on the switch and PC port.

    Link Layer Discovery Protocol-Media Endpoint Devices (LLDP-MED)

    LLDP-MED is an extension of the LLDP standard developed for voice products.

    The Cisco Unified IP Phone supports LLDP-MED on the SW port to communicate information such as:

    • Voice VLAN configuration
    • Device discovery
    • Power management
    • Inventory management

    For more information about LLDP-MED support, see the LLDP-MED and "Cisco Discovery Protocol" white paper:

    http:/​/​www.cisco.com/​en/​US/​technologies/​tk652/​tk701/​technologies_​white_​paper0900aecd804cd46d.html

    Real-Time Transport Protocol (RTP)

    RTP is a standard protocol for transporting real-time data, such as interactive voice and video, over data networks.

    Cisco Unified IP Phones use the RTP protocol to send and receive real-time voice traffic from other phones and gateways.

    Real-Time Control Protocol (RTCP)

    RTCP works in conjunction with RTP to provide QoS data (such as jitter, latency, and round trip delay) on RTP streams.

    RTCP is disabled by default, but you can enable it on a per phone basis by using Cisco Unified Communications Manager.

    Session Initiation Protocol (SIP)

    SIP is the Internet Engineering Task Force (IETF) standard for multimedia conferencing over IP. SIP is an ASCII-based application-layer control protocol (defined in RFC 3261) that can be used to establish, maintain, and terminate calls between two or more endpoints.

    Like other VoIP protocols, SIP is designed to address the functions of signaling and session management within a packet telephony network. Signaling allows call information to be carried across network boundaries. Session management provides the ability to control the attributes of an end-to-end call.

    Transmission Control Protocol (TCP)

    TCP is a connection-oriented transport protocol.

    Cisco Unified IP Phones use TCP to connect to Cisco Unified Communications Manager.

    Trivial File Transfer Protocol (TFTP)

    TFTP allows you to transfer files over the network.

    On the Cisco Unified IP Phone, TFTP enables you to obtain a configuration file specific to the phone type.

    TFTP requires a TFTP server in your network, which can be automatically identified from the DHCP server. If you want a phone to use a TFTP server other than the one specified by the DHCP server, you must manually assign the IP address of the TFTP server by using the Network Configuration menu on the phone.

    For more information, go to the "Cisco TFTP" chapter in the Cisco Unified Communications Manager System Guide.

    User Datagram Protocol (UDP)

    UDP is a connectionless messaging protocol for delivery of data packets.

    Cisco Unified IP Phones transmit and receive RTP streams, which utilize UDP.

    Related Tasks

    Cisco Unified SIP Phone 3905 Supported Features

    Cisco Unified IP Phones function much like a digital business phone, allowing you to place and receive phone calls. In addition to traditional telephony features, the Cisco Unified IP Phone includes features that enable you to administer and monitor the phone as a network device.

    Feature Overview

    Cisco Unified IP Phones provide traditional telephony functionality, such as call forwarding and transferring, redialing, conference calling, and voice messaging system access. Cisco Unified IP phones also provide a variety of other features.

    As with other network devices, you must configure Cisco Unified IP Phones to prepare them to access Cisco Unified Communications Manager and the rest of the IP network. By using DHCP, you have fewer settings to configure on a phone, but if your network requires it, you can manually configure an IP address, TFTP server, subnet information, and so on.

    Finally, because the Cisco Unified IP Phone is a network device, you can obtain detailed status information from it directly. This information can assist you with troubleshooting any problems users might encounter when using their IP phones.

    Telephony Feature Administration

    You can modify additional settings for the Cisco Unified IP Phone from Cisco Unified Communications Manager Administration. Use Cisco Unified Communications Manager Administration to set up phone registration criteria and calling search spaces, among other tasks. See the "Telephony Features" section in this document and the Cisco Unified Communications Manager documentation for additional information.

    For more information about Cisco Unified Communications Manager Administration, see the Cisco Unified Communications Manager documentation, including Cisco Unified Communications Manager Administration Guide. You can also use the context-sensitive help available within the application for guidance.

    You can access Cisco Unified Communications Manager documentation at this location:

    http:/​/​www.cisco.com/​en/​US/​products/​sw/​voicesw/​ps556/​tsd_​products_​support_​series_​home.html

    Related References

    Cisco Unified IP Phone Network Parameters

    You configure parameters such as DHCP, TFTP, and IP settings on the phone itself. For more information about configuring settings and viewing statistics from the phone, see Cisco Unified IP Phone Settings.

    Information for End Users

    If you are a system administrator, you are likely the primary source of information for Cisco Unified IP Phone users in your network or company. To ensure that you distribute the most current feature and procedural information, familiarize yourself with Cisco Unified IP Phone documentation on the Cisco Unified IP Phone 3905 web site:

    http:/​/​www.cisco.com/​en/​US/​products/​ps7193/​tsd_​products_​support_​series_​home.html

    From this site, you can view various user documentation.

    In addition to providing documentation, it is important to inform users of available Cisco Unified IP Phone features - including those specific to your company or network - and of how to access and customize those features, if appropriate.

    For a summary of some of the key information that phone users need their system administrators to provide, see Internal Support Web Site

    Cisco Unified IP Phone Security Features

    The following table shows where you can find information about security in this and other documents.

    Table 2 Cisco Unified IP Phone and Cisco Unified Communications Manager Security Topics

    Topic

    Reference

    Detailed explanation of security, including set up, configuration, and troubleshooting information for Cisco Unified Communications Manager and Cisco Unified IP Phones

    See the Troubleshooting Guide for Cisco Unified Communications Manager

    Security features supported on the Cisco Unified IP Phone

    See the Supported Security Features

    Security and the phone startup process

    See the Phone Startup Process

    Security and phone configuration files

    See the Cisco Unified Communications Manager Phone Addition Methods

    Disabling access to a phone web pages

    See the Disable and Enable Web Page Access

    Troubleshooting

    Resetting or restoring the phone

    See the Cisco Unified IP Phone Reset or Restore

    802.1X Authentication for Cisco Unified IP Phones

    See these sections:

    Supported Security Features

    The following table provides an overview of the security features that the Cisco Unified SIP Phone 3905 support. For more information about these features and about Cisco Unified Communications Manager and Cisco Unified IP Phone security, see the Cisco Unified Communications Manager Security Guide.

    Table 3 Overview of Security Features

    Feature

    Description

    Optional disabling of the web server functionality for a phone

    You can prevent access to a phone web page, which displays a variety of operational statistics for the phone.

    802.1X Authentication

    The Cisco Unified IP Phone can use 802.1X authentication to request and gain access to the network. See the 802.1X authentication for more information.

    Voice Quality Metrics

    MOS LQK

    Objective estimate of the Mean Opinion Score (MOS) for Listening Quality (LQK) that ranks audio quality from 5 (excellent) to 1 (bad). This score is based on audible-concealment events due to a frame loss in the preceding 8 seconds of the voice stream.

    Note   

    The MOS LQK score can vary based on the type of codec that the Cisco Unified IP Phone uses.

    Avg MOS LQK

    Average MOS LQK score for the entire voice stream.

    Min MOS LQK

    Lowest MOS LQK score from the start of the voice stream.

    Max MOS LQK

    Baseline or highest MOS LQK score from the start of the voice stream.

    The following codecs provide the corresponding maximum MOS LQK scores under normal conditions with no frame loss:

    • G.711: 4.5
    • G.728: 3.9
    • G729A/AB: 3.7

    MOS LQK Version

    Version of the Cisco-proprietary algorithm used to calculate the MOS LQK scores.

    802.1X authentication

    The Cisco Unified IP Phones support 802.1X authentication.

    Overview

    Cisco Unified IP Phones and Cisco Catalyst switches traditionally use Cisco Discovery Protocol (CDP) to identify each other and determine parameters such as VLAN allocation and inline power requirements. CDP does not identify locally attached workstations. Cisco Unified IP Phones provide an EAPOL pass-through mechanism. This mechanism allows a workstation attached to the Cisco Unified IP Phone to pass EAPOL messages to the 802.1X authenticator at the LAN switch. The pass-through mechanism ensures that the IP phone does not act as the LAN switch to authenticate a data endpoint before accessing the network.

    Cisco Unified IP Phones also provide a proxy EAPOL Logoff mechanism. In the event that the locally attached PC disconnects from the IP phone, the LAN switch does not see the physical link fail, because the link between the LAN switch and the IP phone is maintained. To avoid compromising network integrity, the IP phone sends an EAPOL-Logoff message to the switch on behalf of the downstream PC, which triggers the LAN switch to clear the authentication entry for the downstream PC.

    Cisco Unified IP Phones also contain an 802.1X supplicant. This supplicant allows network administrators to control the connectivity of IP phones to the LAN switch ports. The current release of the phone 802.1X supplicant uses the EAP-FAST, EAP-TLS, and EAP-MD5 options for network authentication.

    Required Network Components

    Support for 802.1X authentication on Cisco Unified IP Phones requires several components, including:

    • Cisco Unified IP Phone: The phone acts as the 802.1X supplicant, which initiates the request to access the network.
    • Cisco Secure Access Control Server (ACS) (or other third-party authentication server): The authentication server and the phone must both be configured with a shared secret that authenticates the phone.
    • Cisco Catalyst Switch (or other third-party switch): The switch must support 802.1X, so it can act as the authenticator and pass the messages between the phone and the authentication server. After the exchange completes, the switch grants or denies the phone access to the network.

    Best Practices-Requirements and Recommendations

    • Enable 802.1X Authentication: If you want to use the 802.1X standard to authenticate Cisco Unified IP Phones, be sure that you have properly configured the other components before enabling it on the phone.
    • Configure PC Port: The 802.1X standard does not take into account the use of VLANs and thus recommends that only a single device should be authenticated to a specific switch port. However, some switches (including Cisco Catalyst switches) support multi-domain authentication. The switch configuration determines whether you can connect a PC to the phone’s PC port.
      • Enabled: If you are using a switch that supports multi-domain authentication, you can enable the PC port and connect a PC to it. In this case, Cisco Unified IP Phones support proxy EAPOL-Logoff to monitor the authentication exchanges between the switch and the attached PC. For more information about IEEE 802.1X support on the Cisco Catalyst switches, refer to the Cisco Catalyst switch configuration guides at: http:/​/​www.cisco.com/​en/​US/​products/​hw/​switches/​ps708/​tsd_​products_​support_​series_​home.html
      • Disabled: If the switch does not support multiple 802.1X-compliant devices on the same port, you should disable the PC Port when 802.1X authentication is enabled. If you do not disable this port and subsequently attempt to attach a PC to it, the switch will deny network access to both the phone and the PC.
        • Configure Voice VLAN: Because the 802.1X standard does not account for VLANs, you should configure this setting based on the switch support.
      • Enabled: If you are using a switch that supports multi-domain authentication, you can continue to use the voice VLAN.
      • Disabled: If the switch does not support multi-domain authentication, disable the Voice VLAN and consider assigning the port to the native VLAN.

    Cisco Unified IP Phones Deployment

    When deploying a new IP telephony system, system administrators and network administrators must complete several initial configuration tasks to prepare the network for IP telephony service. For information and a checklist for setting up and configuring a Cisco IP telephony network, go to the "System Configuration Overview" chapter in Cisco Unified Communications Manager System Guide.

    After you have set up the IP telephony system and configured system-wide features in Cisco Unified Communications Manager, you can add IP phones to the system.

    Cisco Unified IP Phones Setup in Cisco Unified Communications Manager

    To add phones to the Cisco Unified Communications Manager database, you can use:

    • Auto-registration - Not supported if Cisco Unified Communications Manager is operating in mixed mode.
    • Cisco Unified Communications Manager Administration
    • Bulk Administration Tool (BAT)
    • BAT and the Tool for Auto-Registered Phones Support (TAPS)

    For general information about configuring phones in Cisco Unified Communications Manager, refer to the following documentation:

    • "Cisco Unified IP Phones" chapter in Cisco Unified Communications Manager System Guide
    • "Cisco Unified IP Phone Configuration" chapter in Cisco Unified Communications Manager Administration Guide
    • "Autoregistration Configuration" chapter in Cisco Unified Communications Manager Administration Guide

    Set up Cisco Unified SIP Phone 3905 in Cisco Unified Communications Manager

    The following list provides an overview and checklist of configuration tasks for the Cisco Unified SIP Phone 3905 in Cisco Unified Communications Manager Administration. The list presents a suggested order to guide you through the phone configuration process. Some tasks are optional, depending on your system and user needs. For detailed procedures and information, refer to the sources in the list.

    Procedure
      Step 1   Gather the following information about the phone:
      • Phone Model
      • MAC address
      • Physical location of the phone
      • Name or user ID of phone user
      • Device pool
      • Partition, calling search space, and location information
      • Associated directory number (DN) to assign to the phone
      • Cisco Unified Communications Manager user to associate with the phone

      The information provides a list of configuration requirements for setting up phones and identifies preliminary configuration that you need to perform before configuring individual phones.

      For more information, see the Cisco Unified IP Phones chapter in the Cisco Unified Communications Manager System Guide and the Available telephony features.

      Step 2   Verify that you have sufficient unit licenses for your phone.

      For more information, go to the License Unit Report chapter in the Cisco Unified Communications Manager Administration Guide.

      Step 3   Add and configure the phone by completing the required fields in the Phone Configuration window. Required fields are indicated by an asterisk (*) next to the field name; for example, MAC address and device pool.

      The device with its default settings gets added to the Cisco Unified Communications Manager database.

      For more information, go to the Cisco Unified IP Phone Configuration chapter in the Cisco Unified Communications Manager Administration Guide.

      For information about Product Specific Configuration fields, refer to ? Button Help in the Phone Configuration window.

      Note   

      If you want to add both the phone and user to the Cisco Unified Communications Manager database at the same time, go to the User/Phone Add Configuration chapter in the Cisco Unified Communications Manager Administration Guide

      Step 4   Add and configure directory numbers (line) on the phone by completing the required fields in the Directory Number Configuration window. Required fields are indicated by an asterisk (*) next to the field name; for example, directory number and presence group.

      For more information, go to the Directory Number Configuration chapter in the Cisco Unified Communications Manager Administration Guide and see Available telephony features.

      Step 5   Add user information by configuring required fields. Required fields are indicated by an asterisk (*); for example, User ID and last name.
      Note   

      Assign a password (for User Options web pages) and PIN.

      Adds user information to the global directory for Cisco Unified Communications Manager.

      For more information, go to the End User Configuration chapter in the Cisco Unified Communications Manager Administration Guide and see Add Users to Cisco Unified Communications Manager.

      Note   

      If you want to add both the phone and user to the Cisco Unified Communications Manager database at the same time, go to the User/Phone Add Configurations chapter in the Cisco Unified Communications Manager Administration Guide.

      Step 6   Associate a user to a user group. This step assigns users a common list of roles and permissions that apply to all users in a user group. Administrators can manage user groups, roles, and permissions to control the level of access (and, therefore, the level of security) for system users.
      Note   

      In order for end users to access Cisco Unified CM User Options, you must add users to the standard Cisco CCM End Users group.

      Refer to the following sections in the Cisco Unified Communications Manager Administration Guide:

      • End User Configuration Settings section in the End User Configuration chapter.
      • Adding Users to a User Group section in the User Group Configuration chapter.
      Step 7   (Optional)Associate a user with a phone.

      Provides users with control over their phone such a forwarding calls or services.

      Note   

      Some phones, such as those in conference rooms, do not have an associated user.

      For more information, go to the Associating Devices to an End User section in the End User Configuration chapter in the Cisco Unified Communications Manager Administration Guide.


      Cisco Unified IP Phones Installation

      After you have added the phones to the Cisco Unified Communications Manager database, you can complete the phone installation. You (or the phone users) can install the phone at the location of the user.


      Note


      Upgrade the phone with the current firmware image before you install the phone. For information about upgrading, refer to the Readme file for your phone, located at:

      http:/​/​www.cisco.com/​cgi-bin/​tablebuild.pl/​ip-7900serhttp:/​/​tools.cisco.com/​support/​downloads/​go/​Redirect.x?mdfid=278875240

      For instructions on upgrading the firmware, see the Release Notes, located at: http:/​/​www.cisco.com/​en/​US/​products/​ps7193/​prod_​release_​notes_​list.html


      After the phone is connected to the network, the phone startup process begins, and the phone registers with Cisco Unified Communications Manager. To finish installing the phone, configure the network settings on the phone depending on whether you enable or disable DHCP service.

      If you used auto-registration, you need to update the specific configuration information for the phone such as associating the phone with a user, changing the button table, or directory number.

      Install Cisco Unified SIP Phone 3905

      The following list provides an overview and checklist of installation tasks for the Cisco Unified SIP Phone 3905. The list presents a suggested order to guide you through the phone installation. Some tasks are optional, depending on your system and user needs. For detailed procedures and information, refer to the sources in the list.

      Procedure
        Step 1   Choose the power source for the phone:
        • Power over Ethernet (PoE)
        • External power supply

        Determines how the phone receives power. For more information, see the Cisco Unified IP Phone Power

        Step 2   Assemble the phone, adjust phone placement, and connect the network cable.

        This step locates and installs the phone in the network. For more information, see Install Cisco Unified IP Phone and Footstand.

        Step 3   Monitor the phone startup process. This step associates directory numbers to the phone and verifies that phone is configured properly.

        For more information, see the Phone Startup Verification.

        Step 4   If you are configuring the network settings on the phone, you can set up an IP address for the phone by either using DHCP or manually entering an IP address.
        • Using DHCP - Verify that DHCP is enabled. You can set an alternate TFTP by entering the IP address for the TFTP.
          Note   

          Consult with the network administrator to determine whether you need to assign an alternative TFTP server instead of using the TFTP server assigned by DHCP.

        • Without DHCP - Verify that DHCP is disabled. You must then configure the IP address, subnet mask, TFTP server, and default router locally.

        For more information, see the Network Settings Without DHCP and Configuration Menus.

        Step 5   Set up security on the phone. This step provides protection against data tampering threats and identity theft of phones.

        For more information, see the Security Configuration Menu.

        Step 6   Make calls with the Cisco Unified IP Phone. This step verifies that the phone and features work correctly.

        For more information, see Cisco Unified SIP Phone 3905 User Guide for Cisco Unified Communications Manager 9.0 (SIP).

        Step 7   Provide information to end users about how to use their phones and how to configure their phone options. This step ensures that users have adequate information to successfully use their Cisco Unified IP Phones.

        For more information, see Internal Support Web Site


        Terminology Differences

        The following table highlights some of the important differences in terminology that is used in these documents:

        • Cisco Unified SIP Phone 3905 User Guide for Cisco Unified Communications Manager 9.0(SIP)
        • Cisco Unified SIP Phone 3905 Administration Guide for Cisco Unified Communications Manager 9.0 (SIP)
        • Cisco Unified Communications Manager Administration Guide
        • Cisco Unified Communications Manager System Guide

        User Guide

        Administration and System Guides

        Auto Barge

        cBarge

        Message Indicators

        Message Waiting Indicator (MWI) or Message Waiting Lamp

        Voicemail System

        Voice Messaging System