Troubleshooting MGC tone problems

Last Updated : Jan 15, 2019 |
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DSA does the following when applying the dialtone, ringback, and fastbusy tones:
  • Allocates a TNC channel number by using the following fixed formula:
    (card-1) * 16 + unit + 1
    The maximum number of TNC channels is 255.
  • Establishes one-way speech between the TNC channel and the set.
  • Configures the TNC channel to play the required tone.
You can replace the ringback tone with early media. For example, provide RTP music and announcement instead of local ringback tone.
  1. Do the following if you hear silence or unexpected media:
    1. Analyze SIP signaling by using traces.
    2. Collect and analyze the RTP traces.
    3. Use G711 for a call. By default, G711 is enabled on Device Adapter. Ensure that G711 is enabled on Communication Manager.
    4. Use the port mirroring feature of MGC to obtain RTP logs.
    5. Use the following commands on the Avaya Breeze® platform:
      ADDITIONAL INFORMATION:
      mgcShow -> ipeShow -> vgwShow -> endpointShow
  2. If a dial tone is played with distorted sound, it might be because of companding law mismatch between the TNC device and the set. Do the following:
    • Restart MGC or report the problem to Avaya Support.
  3. Do the following if the played dial tone follows incorrect standards:
    1. Verify the Country attribute.
      ADDITIONAL INFORMATION:
      Device Adapter uses the Country MGC ME attribute to apply country-specific tones.
    2. Verify that the MGC bootup log contains the following log message:
      ADDITIONAL INFORMATION:
      LOG0006 TNC: tone table set successfully for USA countryelow.
  4. If the Country attribute is set properly but log message shows another value, MGC might be using an old mgcdb.xml file. This is because Device Adapter could not upload the new mgcdb.xml file. Do the following:
    • Verify dsa.log for errors. The login is not set to admin2 and the password is not set to 0000.
    • Manually download the /u/db/mgcdb.xml file, edit the Country value, and upload the file. Run the following command on MGC:
      ldb> toneTableSet
      A message similar to the following appears:
      LOG0006 TNC: tone table set successfully for Sweden country
      Verify the tone and if it is still incorrect, report the problem to Avaya Support.