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Built-in Grammar Types

• boolean
Specifies a boolean grammar, either accessible via voice commands of 'yes/no', or via 'dtmf-1/dtmf-2' input. Regardless of the input type, this grammar will return the values of either 'true' or 'false' to the application.


• date
This grammar allows for date input in the following format: yyyymmdd (19700518), by either voice or dtmf input.


• digits
This grammar, by default, specifies a four digit user input grammar, accessible by both dtmf and voice input. Note that the maximum length of detectable digits is '16' when using this built-in grammar. The parameters can be changed by using the following operators:

A string of at least 3 digits
<field name="MyField" type="digits?minlength=3">

A string of at most 3 digits
<field name="MyField" type="digits?maxlength=3">

A string of at exactly 3 digits
<field name="MyField" type="digits?length=3">

A string of 3 to 9 digits
<field name="field_getdigits" type="digits?minlength=3;maxlength=9">


• currency
Specifies a voice or dtmf grammar that recognizes currencies given in dollar and cent amounts, for example, $420.03. The maximum currency setting is $100,000.


• number
Specifies a voice or dtmf input grammar that recognizes numeric input. Note that the maximum length of detectable digits is '16' when using this built-in grammar.


• phone
This grammar will recognize any 10 digit phone number entry, including extensions, via dtmf or voice.


• time
This grammar will recognize any standard time value entry via voice or dtmf.

Boolean

• <grammar src="builtin:grammar/boolean"/>
• <grammar src="builtin:dtmf/boolean"/>

Digits

• <grammar src="builtin:grammar/digits"/>
• <grammar src="builtin:dtmf/digits"/>

Number

• <grammar src="builtin:grammar/number"/>
• <grammar src="builtin:dtmf/number"/>

Currency

• <grammar src="builtin:grammar/currency"/>
• <grammar src="builtin:dtmf/currency"/>

Time

• <grammar src="builtin:grammar/time"/>
• <grammar src="builtin:dtmf/time"/>

=grXMLbuiltins.xml</b<

<?xml version="1.0"?>
<vxml version="2.1">
<meta name="maintainer" content="YOUR_EMAIL@HERE.COM">
<meta name="author" content="Dustin Hayre"/>
<meta name="copyright" content="2008 Voxeo Corporation"/>

<form>
<field name="F_1">
<grammar src="builtin:grammar/boolean"/>
<grammar src="builtin:dtmf/boolean"/>

  <prompt> Here you can say yes, no, true or false, or press 1 for true and 2 for false </prompt>

  <filled>
    <!-- the interpretation will always be TRUE or FALSE -->
<log expr="'**** BOOLEAN: ' + lastresult$.interpretation"/>
  </filled>
</field>
<field name="F_2">
<grammar src="builtin:grammar/digits"/>
<grammar src="builtin:dtmf/digits"/>

  <prompt> Here you can input up to 16 digits, either by voice or DTMF - example: one two three four </prompt>

  <filled>
<log expr="'**** DIGITS: ' + lastresult$.interpretation"/>
  </filled>
</field>

<field name="F_3">
<grammar src="builtin:grammar/number"/>
<grammar src="builtin:dtmf/number"/>

  <prompt> Here you can input a number by voice or DTMF - examples: one hundred fifty, one thousand two hundred  </prompt>

  <filled>
<log expr="'**** NUMBER: ' + lastresult$.interpretation"/>
  </filled>
</field>

<field name="F_4">
<grammar src="builtin:grammar/currency"/>
<grammar src="builtin:dtmf/currency"/>

  <prompt> Here you can input major currency such as Dollars, Pounds or Euros - examples: fifteen dollars and fifty cents, twenty euros </prompt>

  <filled>
<log expr="'**** CURRENCY: ' + lastresult$.interpretation"/>
  </filled>
</field>

<field name="F_5">
<grammar src="builtin:grammar/time"/>
<grammar src="builtin:dtmf/time"/>

  <prompt> Here you can enter the hour and minute by voice or DTMF - examples: half past two, twelve thirty </prompt>

  <filled>
<log expr="'**** TIME: ' + lastresult$.interpretation"/>
  </filled>
</field>

<field name="F_6>
<grammar src="builtin:grammar/date"/>
<grammar src="builtin:dtmf/date"/>

  <prompt> Here you can enter the date by voice or DTMF - example: august 20th </prompt>

  <filled>
<log expr="'**** DATE: ' + lastresult$.interpretation"/>
  </filled>
</field>
</form>
</vxml>


  Source Code.

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