Try bayonne (http://www.gnu.org/software/bayonne/) they use dialogic as 
well as other phone boards and shoudl be able to do what you need.

-derek

David P. Schwartz wrote:

>Does anybody know what is needed to support a fairly simple voice-response
>system using a standard voice-modem?
>
>Dialogic sells expensive cards that have modems and embedded CPUs on them.
>It seems a vanilla voice-modem card would suffice, with a little
>state-machine programming.
>
>-David Schwartz
>
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