Cisco Unified IP Phone 7941G, 7941G-GE, 7942G, 7961G, 7961G-GE, and 7962G Administration Guide for Cisco Unified Communications Manager 9.0 (SCCP and SIP)
Cisco Unified IP Phone Customization
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Cisco Unified IP Phone Customization

Cisco Unified IP Phone Customization

Phone Customization Overview

This chapter explains how you customize configuration files, phone ring sounds, and background images at your site. Ring sounds play when the phone receives a call. Background images appear on the phone LCD screen.

Configuration File Customization and Modification

You can modify configuration files and add customized files to the TFTP directory. You can modify files or add customized files to the TFTP directory in Cisco Unified Communications Operating System Administration, from the TFTP Server File Upload window. For information about how to upload files to the TFTP folder on a Cisco Unified Communications Manager server, see the Cisco Unified Communications Manager System Guide.

You can obtain a copy of the Ringlist.xml or Ringlist-wb.xml files and the List.xml file from the system using the following admin command-line interface (CLI) "file" commands:

  • admin:file
    • file list
    • file view
    • file search
    • file get
    • file dump
    • file tail
    • file delete

For more information, see the Cisco Intercompany Media Engine Command Line Interface Reference Guide.

Custom Phone Ring Creation

The Cisco Unified IP Phone ships with two default ring types that are implemented in hardware: Chirp1 and Chirp2. Cisco Unified Communications Manager also provides a default set of additional phone ring sounds that are implemented in software as pulse code modulation (PCM) files. The PCM files, along with an XML file (named Ringlist.xml) that describes the ring list options that are available at your site, exist in the TFTP server on each Cisco Unified Communications Manager server.

For more information, see the "Custom Phone Rings" chapter in the Cisco Unified Communications Manager Features and Services Guide and the "Software Upgrades" chapter in the Cisco Unified Communications Operating System Administration Guide.

The following sections describe how you can customize the phone rings that are available at your site by creating PCM files and editing the Ringlist.xml file:

Ringlist.xml File Format Requirements

The Ringlist.xml file defines an XML object that contains a list of phone ring types. This file includes up to 50 ring types. Each ring type contains a pointer to the PCM file that is used for that ring type and the text that appears on the Ring Type menu on a Cisco Unified IP Phone for that ring. The Cisco TFTP server for each Cisco Unified Communications Manager contains this file.

The CiscoIPPhoneRinglist XML object uses the following simple tag set to describe the information:

<CiscoIPPhoneRingList>   
   <Ring>
      <DisplayName/>
      <FileName/>
   </Ring>
</CiscoIPPhoneRingList>

The following characteristics apply to the definition names. You must include the required DisplayName and FileName for each phone ring type.

  • DisplayName specifies the name of the custom ring for the associated PCM file that displays on the Ring Type menu of the Cisco Unified IP Phone.
  • FileName specifies the name of the PCM file for the custom ring to associate with DisplayName.

Note


The DisplayName and FileName fields must not exceed 25 characters in length.


This example shows a Ringlist.xml file that defines two phone ring types:

<CiscoIPPhoneRingList>   
   <Ring>
      <DisplayName>Analog Synth 1</DisplayName>
      <FileName>Analog1.raw</FileName>
   </Ring>
   <Ring>
      <DisplayName>Analog Synth 2</DisplayName>
      <FileName>Analog2.raw</FileName>
   </Ring>
</CiscoIPPhoneRingList>

PCM File Requirements for Custom Ring Types

The PCM files for the rings must meet the following requirements for proper playback on Cisco Unified IP Phones:

  • Raw PCM (no header)
  • 8000 samples per second
  • 8 bits per sample
  • Mu-law compression
  • Maximum ring size = 16080 samples
  • Minimum ring size = 240 samples
  • Number of samples in the ring = multiple of 240.
  • Ring start and end at zero crossing.

To create PCM files for custom phone rings, use any standard audio editing package that supports these file format requirements.

Set Up Custom Phone Ring

To create custom phone rings for the Cisco Unified IP Phone, perform these steps:

Procedure
    Step 1   Create a PCM file for each custom ring (one ring per file). Ensure the PCM files comply with the format guidelines that are listed in PCM File Requirements for Custom Ring Types.
    Step 2   Upload the new PCM files that you created to the Cisco TFTP server for each Cisco Unified Communications Manager in your cluster. For more information, see the "Software Upgrades" chapter in Cisco Unified Communications Operating System Administration Guide.
    Step 3   Use a text editor to edit the Ringlist.xml file. See Ringlist.xml File Format Requirements for information about how to format this file and for a sample Ringlist.xml file.
    Step 4   Save your modifications and close the Ringlist.xml file.
    Step 5   To cache the new Ringlist.xml file, stop and start the TFTP service by using Cisco Unified Serviceability or disable and reenable the "Enable Caching of Constant and Bin Files at Startup" TFTP service parameter (that is found in the Advanced Service Parameters area.)

    Custom Background Images

    You can provide users with a choice of background images for the LCD screen on their phones. Users can select a background image by choosing Settings > User Preferences > Background Images on the phone.

    The image choices that users see come from PNG images and an XML file (called List.xml) that are stored on the TFTP server used by the phone. By storing your own PNG files and editing the XML file on the TFTP server, you can designate the background images from which users can choose. In this way, you can provide custom images, such as your company logo.

    The following sections describe how you can customize the background images that are available at your site by creating your own PNG files and editing the List.xml file.

    Note


    The XSI Screen Width Enhancement feature, when implemented on Cisco Unified IP Phones, enhances the Messages, Directories, and Services screens. These screens may appear in Normal mode or in Wide mode, depending on how the phone is set up. For information, see Cisco Unified IP Phone Services Application Development Notes at http:/​/​www.cisco.com/​en/​US/​products/​sw/​voicesw/​ps556/​products_​programming_​reference_​guides_​list.html.


    List.xml File Format Requirements

    The List.xml file defines an XML object that contains a list of background images. The List.xml file is stored in the following subdirectory on the TFTP server:

    /Desktops/320x196x4 for Cisco Unified IP Phone 7941, 7942, 7961, and 7962


    Tip


    If you are manually creating the directory structure and the List.xml file, you must ensure that the directories and files can be accessed by the user\CCMService, which is used by the TFTP service.


    For more information, see "Software Upgrades" chapter in Cisco Unified Communications Operating System Administration Guide.

    The List.xml file can include up to 50 background images. The images are in the order that they appear in the Background Images menu on the phone. For each image, the List.xml file contains one element type, called ImageItem. The ImageItem element includes these two attributes:

    • Image—Uniform resource identifier (URI) that specifies where the phone obtains the thumbnail image that will appear on the Background Images menu on a phone.
    • URL—URI that specifies where the phone obtains the full size image.

    The following example shows a List.xml file that defines two images. The required Image and URL attributes must be included for each image. The TFTP URI that is shown in the example is the only supported method for linking to full size and thumbnail images. HTTP URL support is not provided.

    List.xml Example

    <CiscoIPPhoneImageList><ImageItem Image=”TFTP:Desktops/320x196x4/TN-Fountain.png” URL=”TFTP:Desktops/320x196x4/Fountain.png”/> 
    <ImageItem Image=”TFTP:Desktops/320x196x4/TN-FullMoon.png” URL=”TFTP:Desktops/320x196x4/FullMoon.png”/> 
    </CiscoIPPhoneImageList>
    

    The Cisco Unified IP Phone firmware includes a default background image. This image is not defined in the List.xml file. The default image is always the first image that appears in the Background Images menu on the phone.

    PNG File Requirements for Custom Background Images

    Each background image requires two PNG files:

    • Full size image—Version that appears on the on the phone.
    • Thumbnail image—Version that appears on the Background Images screen from which users can select an image. The thumbnail image must be 25% of the size of the full size image.

    Tip


    Many graphics programs provide a feature that will resize a graphic. An easy way to create a thumbnail image is to first create and save the full size image, then use the sizing feature in the graphics program to create a version of that image that is 25% of the original size. Save the thumbnail version with a different name than the full size image.


    The PNG files for background images must meet the following requirements for proper display on the Cisco Unified IP Phone:

    • Full size image—320 pixels (width) X 196 pixels (height)
    • Thumbnail image—80 pixels (width) X 49 pixels (height)

    Tip


    If you are using a graphics program that supports a posterize feature for grayscale, set the number of tonal levels per channel to 16, and the image will posterize to 16 shades of grayscale.


    Set Up Custom Background Image

    To create custom background images for the Cisco Unified IP Phone, follow these steps:

    Procedure
      Step 1   Create two PNG files for each image (a full size version and a thumbnail version). Ensure the PNG files comply with the format guidelines that are listed in PNG File Requirements for Custom Background Images.
      Step 2   Upload the new PNG files that you created to the following subdirectory in the TFTP server for the Cisco Unified Communications Manager:

      /Desktops/320x196x4

      Note   

      The file name and subdirectory parameters are case sensitive. Be sure to use the forward slash "/" when you specify the subdirectory path.

      To upload the files, choose Software Upgrades > Upload TFTP Server File in Cisco Unified Communications Operating System Administration. For more information, see "Software Upgrades" chapter in Cisco Unified Communications Operating System Administration Guide.

      Note   

      If the folder does not exist, the folder gets created and the files get uploaded to the folder.

      Step 3   You must also copy the customized images and files to the other TFTP servers that the phone may contact to obtain these files.
      Note   

      Cisco recommends that you also store backup copies of custom image files in another location. You can use these backup copies if the customized files are overwritten when you upgrade Cisco Unified Communications Manager.

      Step 4   Use a text editor to edit the List.xml file. See List.xml File Format Requirements for the location of this file, formatting requirements, and a sample file.
      Step 5   Save your modifications and close the List.xml file.
      Note   

      When you upgrade Cisco Unified Communications Manager, a default List.xml file will replace your customized List.xml file. After you customize the List.xml file, make a copy of the file and store it in another location. After upgrading Cisco Unified Communications Manager, replace the default List.xml file with your stored copy.

      Step 6   To cache the new List.xml file, stop and start the TFTP service by using Cisco Unified Communications Manager Serviceability or disable and re-enable the Enable Caching of Constant and Bin Files at Startup TFTP service parameter (located in the Advanced Service Parameters).

      Wideband Codec Setup

      If Cisco Unified Communications Manager has been configured to use G.722 (G.722 is enabled by default for the Cisco Unified IP Phone) and if the far endpoint supports G.722, the call can connect using the G.722 codec in place of G.711. This situation occurs regardless of whether the user has enabled a wideband headset or wideband handset, but if either the headset or handset is enabled, the user may notice greater audio sensitivity during the call. Greater sensitivity means improved audio clarity but also means that more background noise can be heard by the far endpoint: noise such as rustling papers or nearby conversations. Even without a wideband headset or handset, some users may prefer the additional sensitivity of G.722. Other users may be distracted by the additional sensitivity of G.722.

      Two parameters in Cisco Unified Communications Manager Administration affect whether wideband is supported for this Cisco Unified Communications Manager server or a specific phone:

      • Advertise G.722 Codec: From Cisco Unified Communications Manager Administration, choose System > Enterprise Parameters. The default value of this enterprise parameter is True, which means that all Cisco Unified IP Phone models that are described in this administration guide and are registered to this Cisco Unified Communications Manager will advertise G.722 to Cisco Unified Communications Manager. For more information, see the Cisco Unified Communications Manager System Guide, "Cisco Unified IP Phones" chapter.
      • Advertise G.722 Codec: From Cisco Unified Communications Manager Administration, choose Device > Phone. The default value of this product-specific parameter is to use the value specified in the enterprise parameter. If you want to override this on a per-phone basis, choose Enabled or Disabled in the advertises G.722 Codec parameter on the Product Specific Configuration area of the Phone Configuration window.