This program monitors for incoming DTMF tones while in a phone conversation and creates a log file of the numbers. Tap the 'next' to separate the numbers. When the caller/receiver (either cell or land line) wants to give you a phone number simply start the program and tap the button start the decoder. The program scans the phones audio in real time for DTMF digits and symbols and places them on the list. The DTMF audio decoder is based on the 'Goertzel Algorithm'. The search service is provided by

Freeware - Download PocketPC PHONEDTMFNumberLogger© Now!

To run these Pocket Visual Basic programs you need the free Microsoft Distribution Source Files located at




Click here to go to the Free Windows CE Software Website

(c)1998-2017 Vincent Collura ( Inventor / Engineer )