dtmf ic

Discussion in 'The Projects Forum' started by vinodquilon, Jan 10, 2010.

  1. vinodquilon

    Thread Starter Member

    Dec 24, 2009
    234
    0
    Does these dtmf ics kt 3170 & mt 8870 can decode key press events while hearing ring-back tone (RBT) in on-hook state before accepting call. If no, does any other dtmf ics can do this?
     
  2. S_lannan

    Active Member

    Jun 20, 2007
    247
    2
    I'd be looking up the datasheets for those ICs to see if they can do what you need.
     
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