touch-tone telephone voice user interfaces ( VUI/IVR )

Discussion in 'General Electronics Chat' started by vinodquilon, Mar 5, 2010.

  1. vinodquilon

    Thread Starter Member

    Dec 24, 2009
    234
    0
    I am doing a tele-switch project.
    I want to increase its functionality by incorporating one touch-tone VUI circuit.
    My aim is to inform the caller that---
    'phone is in device-mode, enter your PIN number to log in '

    Can anybody help me by presenting any circuits or ICs that can manipulate my requirement ?
     
  2. vinodquilon

    Thread Starter Member

    Dec 24, 2009
    234
    0
    One more point, VUI need to activate only after 5 rings.
     
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