DTMF Mode Grammar Library for French (Canada)
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The Dual Tone Multi-frequency (DTMF) library contains a collection of preconstructed grammar rules. Each rule is designed to retrieve the numeric values associated with the DTMF pitches that are generated by a user pressing the keys of a telephone keypad. The DTMF library is a grammar resource that is used by ASP.NET Application Speech Controls.
Following is a list of the rules contained in the DTMF library, descriptions of what the rules recognize, and examples.
Rules
| Rule Name | Description |
|---|---|
| digit | Retrieves the numeric value of a single telephone keypad press where the key pressed is in the range 0 through 9 inclusive. |
| Year | Retrieves the numeric value of a sequence of four telephone keypad presses. |
| Month | Retrieves the numeric value of a sequence of two telephone keypad presses where the sequence is in the range from 01 through 12 inclusive. |
| Day | Retrieves the numeric value of a sequence of two telephone keypad presses where the sequence is in the range from 01 through 31 inclusive. |
| digit_nonzero | Retrieves the numeric value of a single telephone keypad press where the key pressed is in the range 1 through 9 inclusive. |
Usage
<!-- using the digit rule as an example -->
<ruleref uri="dtmfrules.cfg#digit" />
The grammar can be used as follows (using the digit rule as an example):
<grammar version="1.0" xmlns="http://www.w3.org/2001/06/grammar"
xml:lang="en-US" tag-format="semantics-ms/1.0">
<rule>
<ruleref uri="dtmfrules.cfg#digit" />
</rule>
</grammar>
JScript Objects
$[Rulename]._value : string
$[Rulename]._attributes.text : string
Example: digit rule
User presses: 4.
SML returned by the recognition engine:
<SML confidence="1.000" text="4" utteranceConfidence="1.000">4</SML>
Example: Year rule
User presses: 2 0 0 4.
SML returned by the recognition engine:
<SML confidence="1.000" text="2 0 0 4" utteranceConfidence="1.000">2004</SML>
Examples: Month rule
Example 1
User presses: 0 7.
SML returned by the recognition engine:
<SML confidence="1.000" text="0 7" utteranceConfidence="1.000">7</SML>
Example 2
User presses: 1 1.
SML returned by the recognition engine:
<SML confidence="1.000" text="1 1" utteranceConfidence="1.000">11</SML>
Examples: Day rule
Example 1
User presses: 0 5.
SML returned by the recognition engine:
<SML confidence="1.000" text="0 5" utteranceConfidence="1.000">5</SML>
Example 2
User presses: 1 0.
SML returned by the recognition engine:
<SML confidence="1.000" text="1 0" utteranceConfidence="1.000">10</SML>
Example: digit_nonzero rule
User presses: 9.
SML returned by the recognition engine:
<SML confidence="1.000" text="9" utteranceConfidence="1.000">9</SML>