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# Enable Soundex Keyword Searches

Note: You must enable Soundex keyword searches before you index the data that you want to search.

To enable Soundex keyword searches

1. Open the HPE IDOL Server configuration file in a text editor.

2. In the `[Server]` section, set the `Soundex` parameter to one of the following values. If the `[Server]` section does not contain the `Soundex` parameter, add it.

   1 | The HPE Soundex extension.
   2 | Standard Soundex.
   4 | Double Metaphone.
   8 | The HPE Double Metaphone extension.

3. Save and close the configuration file. Restart HPE IDOL Server for your changes to take effect.

4. Index documents into HPE IDOL Server. After you finish indexing, you can perform Soundex keyword searches by using the `Query` action. The phonetic indexing and query uses the algorithm that you selected.

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