Pcm File Requirements For Custom Ring Types; Configuring A Custom Phone Ring; Creating Custom Background Images - Cisco 7971G-GE - IP Phone VoIP Administration Manual

Chapter 6 Customizing the Cisco Unified IP Phone

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:
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Configuring a Custom Phone Ring

To create custom phone rings for the Cisco Unified IP Phone 7970 Series, follow these steps:
Procedure
Create a PCM file for each custom ring (one ring per file). Ensure the PCM files comply with the format
Step 1
guidelines that are listed in the
Step 2 Place 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.
Use a text editor to edit the Ringlist.xml file. See the
Step 3
on page 6-2
Save your modifications and close the Ringlist.xml file.
Step 4
To cache the new Ringlist.xml file, stop and start the TFTP service by using Cisco Unified Serviceability
Step 5
or disable and re-enable the Enable Caching of Constant and Bin Files at Startup TFTP service parameter
(located in the Advanced Service Parameters).

Creating 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.
OL-15299-01
Raw PCM (no header)
8000 samples per second
8 bits per sample
uLaw compression
Maximum ring size—16080 samples
Minimum ring size—240 samples
Number of samples in the ring is evenly divisible by 240.
Ring starts and ends at the zero crossing.
To create PCM files for custom phone rings, you can use any standard audio editing packages that
supports these file format requirements.
for information about how to format this file and for a sample Ringlist.xml file.
Cisco Unified IP Phone 7970G/7971G-GE Administration Guide for Cisco Unified Communications Manager 7.0
"PCM File Requirements for Custom Ring Types" section on page
"Ringlist.xml File Format Requirements" section
Creating Custom Background Images
6-3.
6-3