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Custom grammars

Recognition types are the choices associated with the Input ASR Mode field on the Response tab for a Prompt and Collect node, Menu node, or Automenu node in IVR Designer.

The system uses the recognition type, along with other fields, to select a speech recognition grammar to be used for that prompt. Certain digit strings and custom vocabulary words may require custom recognition types and associated custom grammars for acceptable recognition accuracy. Examples include a credit card number or a merchant number. These digit strings have specific limitations on the position of certain digits within the string. For example, a telephone area code in North America requires a number 2 through 9 for the first digit, 0 through 9 for the second digit, and 0 through 9 for the third digit.

Custom recognition types help limit the recognition possibilities, which results in better accuracy.

For more information, contact your Avaya representative.

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