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Custom Ring Tones on CCM 4.1(3)

I just converted a .wav using Windows SoundRecorder, into a new file as per the requirements below. It plays fine on my PC but on my Cisco Phones it plays distorted. Any ideas?

The PCM files for the rings must meet the following requirements for proper playback on Cisco

IP Phones:

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 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 support these file format requirements.

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MardukLitzer
Asked:
MardukLitzer
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1 Solution
 
harbor235Commented:


Use mu-law compression,

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

"Raw PCM (no header)

"8000 samples per second

"8 bits per sample

"mu-law compression

"Maximum ring size16080 samples

"Minimum ring size240 samples

"Number of samples in the ring 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 support these file format requirements.

Procedure:
Procedure


--------------------------------------------------------------------------------

Step 1 Create a PCM file for each custom ring (one ring per file). Ensure that the PCM files comply with the format guidelines that are listed in the "PCM File Requirements for Custom Ring Types" section.

Step 2 Use an ASCII editor to edit the Ringlist.xml file. See the "Ringlist.xml File Format Requirements" section for information on how to format this file, along with a sample Ringlist.xml file.

Step 3 Save your modifications and close the Ringlist.xml file.

Step 4 Upload the Ringlist.xml file by using the web page interface. Refer to the Cisco IP Telephony Platform Administration Guide.

Step 5 To cache the new Ringlist.xml file, stop and start the TFTP service by using Cisco CallManager Serviceability or disable and reenable the "Enable Caching of Constant and Bin Files at Startup" TFTP service parameter (located in the Advanced Service Parameters).

harbor235 ;}
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MardukLitzerAuthor Commented:
Under Windows SoundRecorder I saved it as CCITT u-law, 8000Khz, 8 Bit Stereo...
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harbor235Commented:


The requirements are stated in this doc, it specifies mu-law compression

http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/admin/5_0_1/ccmfeat/fsrings.html

harbor235 ;}
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