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In CallManager 3.2 and later, an error related to the Music on Hold path keeps flooding the Subscriber Event Viewer; the error message is: Unable to read/write to Destination directory (\\LVBCM02\TFTPPATH\MOH)

Core Issue

In Cisco CallManager 3.2, when a Music on Hold (MoH) server is installed on servers other than the publisher, this error message is continuously logged in the Event Viewer.

The reason for this problem is that starting from Cisco CallManager 3.2, the MoH service has been modified to log on as LocalSystem from the SQLSvc account to fix a security hole and problems with modifications to the SQLSvc account.

Resolution

To use the stand alone TFTP server for MoH or an MoH on a subscriber, perform these steps:

  1. Select Service > Service Parameters.
  2. Select the Cisco CallManager server where the MoH is installed.
  3. Select Cisco IP Voice Media Streaming App service.
  4. Change the Default TFTP MOH IP Address field to the name stand alone TFTP server and click Update.
  5. Select Service > Service Parameters.
  6. Select the Cisco CallManager server where the MoH is installed.
  7. Select Cisco MoH Audio Translator service.
  8. Change the DefaultTFTPMOHFilePath to \\Name of stand alone TFTP server\TFTPPATH.
  9. Make sure that the Cisco MoH Audio Translator service can access and has write privileges for the PC where the stand alone TFTP server resides.

    Perform these steps:

    1. Go to the PC where the Audio Translator resides.
    2. Select Computer Management > Local Users and Groups > Users.
    3. Right-click in the Name listing and select New User.
    4. Enter the user name. For instance, mohuser.
    5. Enter the password. For instance, selsius.
    6. Uncheck the User must change password at next logon check box.
    7. Select Computer Management > Local Users and Groups > Groups, select Administrators and add mohuser to the administrators.
    8. Right-click Cisco MOH Audio Translator service and select Properties.
    9. Click the Log on tab.
    10. Select This account.
    11. Enter mohuser for the user name field and enter selsius for the password.
    12. Restart the service.
  10. Go to the PC where the TFTP server resides and repeat steps b through k.
  11. Place the new wave file in the DropMOHAudioSourceFilesHere directory of the PC where the Audio Translator resides.
  12. Configure this file to be used when devices are put on hold.
  13. Verify that the new file is played.
  14. Verify that the c:\Program Files\Cisco\MOH directory has the codec version (selected for the MOH server) of this file.
  15. Verify that the c:\Program Files\Cisco\TFTPPath and c:\Program Files\Cisco\TFTPPath\MOH directories of the PC where the TFTP server resides have all the codec versions of the new wave file plus the MoH directory has the .xml file.
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