<option>

Description

Specifies an option in a <field>. It is a convenient way to specify a list of choices in a field without specifying a grammar. The grammar is generated automatically from the text contained in each <option> and the optionally specified dtmf sequence in each <option>.

Syntax

<option
    dtmf="DTMF_sequence"
    accept="exact" | "approximate"
    value="string">
  text
</option>

Attributes

Attribute	Description
dtmf	A DTMF sequence to select this option. Optional.
accept	Specifies how to generate the grammar for this `<option>` element. Optional. (Defaults to exact.) exact - The text contained in the `<option>` element defines the exact phrase to be recognized. approximate - The text contained in the `<option>` element defines an approximate recognition phrase. A subset of the words in the phrase can be matched. For example, "hello world" can be matched with "hello world", "hello", or "world".
value	The string to assign to the field variable when this option is selected, either by speech or DTMF. Optional. (Defaults to the option text with leading and trailing white space removed, if specified. Otherwise, defaults to the value of the dtmf attribute.)

Parents

Field

Children

#PCDATA

VoiceGenie Extensions

None

Limitations/Restrictions

The generated grammar is of the form application/srgs+xml and so it is necessary to ensure that the ASR server being used supports this type of grammar.

Example

<?xml version="1.0"?>
<vxml version="2.0" xmlns="http://www.w3.org/2001/vxml">
  <form>
    <field name="maincourse">
      <prompt>
        Please select either sword fish or roast beef. 
      </prompt>
      <option dtmf="1"> sword fish </option>
      <option dtmf="2"> roast beef </option>
      <filled>
        Very good.
        I'll bring out your <value expr="maincourse"/>.
      </filled>
    </field>
  </form>
</vxml>