Menu Element and nomatch event when dialling multiple digits

[rpieroni@dexem.com]

Hello,

While testing the menu element, i received a nomatch event which was not expected.
Please note the wav file can not be bargeined.
I dialled many 5 DTMF, quickly, and i found myself having a nomatch event.
I imagined the first DTMF 5 will be recognised, but it is not the case.

I tested the same test with a bargineable prompt and have the same behavior.
Is this a known issue of the menu element?
Did i misused the menu element?

Kind regards,

Raphaël

Here is an extract of the Voice XML page for that menu:

Code: Select all

<menu id="main">
    <prompt bargein="false">
      <audio src="../../audio/dtmfmenu_dial.wav"/>
    </prompt>
    <choice dtmf="0" next="#choice_0"/>
    <choice dtmf="1" next="#choice_1"/>
    <choice dtmf="2" next="#choice_2"/>
    <choice dtmf="3" next="#choice_3"/>
    <choice dtmf="4" next="#choice_4"/>
    <choice dtmf="5" next="#choice_5"/>
    <choice dtmf="6" next="#choice_6"/>
    <choice dtmf="7" next="#choice_7"/>
    <choice dtmf="8" next="#choice_8"/>
    <choice dtmf="9" next="#choice_9"/>
    <choice dtmf="*" next="#choice_star"/>
    <choice dtmf="#" next="#choice_sharp"/>
    <noinput>
      <goto next="#noinput"/>
    </noinput>
    <nomatch>
      <goto next="#nomatch"/>
    </nomatch>
  </menu>

Here is an extract of the call log for the call:

Code: Select all

GrammarManager::CreateGrammarFromString(application/srgs+xml):
---------
<?xml version='1.0'?>
<grammar xml:lang="en-us" type="application/srgs+xml" root="CHOICE" mode="dtmf">
<rule id="CHOICE">
<item>0</item>
</rule>
</grammar>
---------
[Cut all the sample grammars]
---------
VXI::queue_prompts()
bargein set to false
INPUTMODES set to "DTMF"
Cache Hit: http://[MY_SERVER]/audio/dtmfmenu_dial.wav
Audio segment from the URL ../../audio/dtmfmenu_dial.wav added to prompt queue
starting playback: bargein=false, inputmodes="dtmf"
Newly queued prompts are now being played
VXI::do_recognition()
PromptManager::Play()
Wed 22 Feb 2012 11:15:58 AM EST:
dtmf input: 555555555555555555
received event: nomatch: 

[support]

Hi Raphael,

From how you've set up your <menu> block of code with those <choices>, the IVR system expects an input that's either 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, *, or #. So, entering an input of 555555555555555555 should return an expected event of nomatch (note within your call log that the DTMF input registered by the IVR was "555555555555555555").

Regards,
Plum Support

[rpieroni@dexem.com]

Hello,

Thanks for your answer.

But as far as i understand the D.1 Appendix of the VoiceXML 2.0 (http://www.w3.org/TR/voicexml20/#dmlATiming), the first 5 should have been understood as a match in the menu and the remaining 5s should have been given to the next element waiting for a user utterance, especially the "termchar Empty When Grammar Must Terminate" part of the Appendix.

Did i misunderstood?

Kind Regards

[support]

Hi Raphael,

Regarding the timing of your application, please note that there is a default interdigittimeout value of 1 second and that there is a termmaxdigits attribute that you must enable for the behavior, "termchar Empty When Grammar Must Terminate", to occur.

Regards,
Plum Support

[rpieroni@dexem.com]

Hi,

Many thanks for your answer.

Kind Regards,

Raphaël