Re: dtmf grammars questions

["Suresh Paliwal" <suresh@mail.aumtechinc.com>]

Hello,

 

I am trying to make the following code to work.  But "get_gram_from_word" function in "rec_qa.c" does not return the correct value because it does not have the matching sets of name value pairs in the vector.  The vector contains index and the values.  I expect it to contain the dtmf input and the corresponding values.

 

<field name="color_choice">
      <dtmf> 1{blue}| 2{red} | 3{green} </dtmf>
</field>

 

Can anyone explain whether what I see is wrong and whether it is possible to implement the above vxml code?

 

Suresh

 

 

----- Original Message -----

From: vincent ribiere

To: vxi-discuss@speechinfo.org

Sent: Tuesday, February 27, 2001 1:56 PM

Subject: dtmf grammars questions

Hello,

I'm trying to use the recognition interface to receive DTMF digits sequences.

It works fine when I need to recognize single digits as the grammar is relatively simple:
for instance if I'm only expected 1,2 or 3 in a field, the following works fine:

<field name="main_choice">
      <dtmf> 1| 2 | 3 </dtmf>
</field>

But if I need to obtain a certain number of digits from the user (e.g. a phone number
with 10 digits), I run into problems as the following is not supported:

<field name ="extension"  type="digits?length=10" >
    <prompt> Enter the 10 digits extension of the user you want to reach
    </prompt>
 </field>

It seems I need a more elaborate support for grammars but does anyone know
a way of writing a grammar that supports the above (with the existing recognition
code) ?

As it seems unlikely, does anyone know of an open-source implementation of a
grammar (e.g. JSGF) that would allow to do this ?

Thanks in advance,

-- 
Vincent Ribiere
senior Engineer, Cisco Systems
(408) 527 6613