[asterisk-speech-rec] DTMF

[David Brazier]

I understand that Lumenvox SRE supports DTMF and voice grammars, but I'm
still not clear if the Asterisk/Lumenvox interface is designed to
support passing DTMF events to Lumenvox.

David

Joshua Colp wrote:
> David Brazier wrote:
> > Thanks for the explanation.  So this means there is no point loading
a 
> > DTMF grammar in the SRE?
> 
> Pretty much.

Joshua Colp wrote:
> DTMF gets returned as a regular speech result from the dtmf grammar
with 
> a score of 1000.
> 
> You could do a check on that to see if they entered DTMF or did
speech.

Stephen Keller wrote:
> The purpose of DTMF grammars is so that once the platform (in this
case Asterisk) recognizes DTMF, 
> you can get semantic interpretation from the Engine regardless of
whether the user spoke or dialed. 
> I.e. you can return the same semantic interpretation to your
application regardless of whether your 
> user said "One" or pressed 1. It sounds like this is what you would
want for your application -- this 
> way all semantic interpretation is handled in grammars and not by your
application.
>
> I am not sure how to pass recognized DTMF from Asterisk to the Engine
for semantic interpretation. 
> Perhaps Josh or somebody else on the list is more familiar with this?