VoiceXML Example : Asterisk
Play values with SayNumber/SayDigits
<?xml version="1.0"?>
<vxml version="2.0" xmlns="http://www.w3.org/2001/vxml" xml:lang="es-ES">
<var name="myname" expr="'borja'"/>
<form>
<block>
<prompt>
<audio src="application:SayDigits(45)"/>
<audio expr="'application:SayNumber('+(12+4)+',f)'"/>
<audio src="application:SayAlpha(borja)"/>
<audio expr="'application:SayPhonetic('+myname+'borja)'"/>
</prompt>
</block>
</form>
</vxml>
The VoiceXML browser will use the Asterisk applications to play specific values. The xml:lang attribut is important to set the Asterisk language.
Download : audio_app.vxml
Get an Asterisk variable value
<?xml version="1.0" ?>
<vxml version="2.0" xmlns="http://www.w3.org/2001/vxml">
<form id="demo-transfer">
<block>
<prompt>Get an Asterisk variable value.</prompt>
</block>
<transfer name="getvar" bridge="true" dest="execute:get(VXML_ID)" />
<block>
<prompt>The value is
<value expr="getvar$.value" />.</prompt>
</block>
</form>
</vxml>
The VoiceXML browser will use the prefix 'execute:' to exchange with the Asterisk channel context.
Download : transfer_get.vxml
Set an Asterisk variable
<?xml version="1.0" ?>
<vxml version="2.0" xmlns="http://www.w3.org/2001/vxml">
<form id="demo-transfer">
<block>
<prompt>
<prosody>Set an Asterisk variable.</prosody>
</prompt>
</block>
<transfer name="toto" bridge="true" dest="execute:set(VXML_MOMO)=10"></transfer>
</form>
</vxml>
The VoiceXML browser will use the prefix 'execute:' to exchange with the Asterisk channel context.
Download : transfer_set.vxml
Set CDR userfield
<?xml version="1.0" ?>
<vxml version="2.0" xmlns="http://www.w3.org/2001/vxml">
<form id="demo">
<block>
<prompt>Set CDR user field.</prompt>
</block>
<transfer name="userfield" bridge="true" dest="execute:function(CDR(userfield))=12" />
<transfer name="userfield2" bridge="true" dest="execute:function(CDR(userfield))+=34" />
<block>
<prompt>End of call.</prompt>
</block>
</form>
</vxml>
The VoiceXML browser will use the Asterisk function CDR() to set a value in the CDR.
Download : transfer_cdr.vxml