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How to change the codecs on a Cisco Unity server

Core Issue

When a voice mail is received, Cisco Unity sends a copy of the voice mail to Microsoft Outlook. The issue is that the codec that Cisco Unity uses in order to format the .wav file does not work with Microsoft Windows Media Player 10 Mobile.

Only the GSM 6.10 codec is supported.

Resolution

In order to resolve this issue, complete the instructions detailed in Changing the Cisco Unity Codecs.

Unfortunately there is no support for MP3 encoding for Cisco Unity at this time, so this is not an option for us to work on at this time. But, apparently the GSM 6.10 codec is supported. Verify with the phone vendor that they support GSM 6.10 codec on the phone.

Additional Information

Windows Media Player 10 Mobile supports high-quality digital media files and can require a large amount of storage space. In order to minimize file size, digital media files are often compressed with software called a codec, which is short for compressor/decompressor. In order to play the file, it must be decompressed with the same codec that compressed the file.

By default, Windows Media Player 10 Mobile can play files that have been compressed by any of these audio and video codecs. In some cases, the device manufacturer or mobile operator configures the player to support other codecs. In order to determine which codecs a file uses, review its file properties in Menu >

Properties.

Audio codecs

These Microsoft Windows Media Audio codec versions are supported:

  • 1.0

       
  • 2.0

       
  •   7

       
  •   8

       
  •   9  

Windows Media Player for Pocket PC supports all of the variants of the Windows Media Audio 9 codec, which includes:

  •   Windows Media Audio 9 codec

       
  •   Windows Media Audio 9 Professional codec

       
  •   Windows Media Audio 9 Voice codec

       
  •   Windows Media Audio 9 Lossless codec  

But, these variants are only partially supported:

  •   Windows Media Audio 9 Professional codec Multiple channels are combined into a stereo mix during playback. Based on the audio playback capabilities of the device, content with an audio sampling rate higher than 48 kilohertz (KHz) can potentially be played as 48 KHz.

       
  •   Windows Media Audio 9 Lossless codec Based on the audio playback capabilities of the device, content with an audio sampling rate higher than 48 kilohertz (KHz) can potentially be played as 48 KHz.    

MP3 Video codecs

These versions of the Microsoft Windows Media Video codec are supported:

  •   7

       
  •   8

       
  •   9   

These versions of the Microsoft Windows Media Video 9 Image codec are supported:

  •   1.0, which is used by Microsoft Photo Story 1 and 2

       
  •   2.0, which is used by Photo Story 3  

These versions of the Microsoft MPEG-4 codec are supported:

  •   2.0

       
  •   3.0   

The ISO MPEG-4 video codec version 1.0 is supported.

Version history
Revision #:
1 of 1
Last update:
‎06-22-2009 04:10 PM
Updated by: