This program allows you to text chat via DTMF tones while in a phone conversation. Enter the text to send and tap the 'Send' button and the program will convert the text to ASCII text and send via cellular DTMF tones to another user with the PocketPC PHONEDTMFChat(c) app. The program taps your phones audio for incoming DTMF tones and decodes then in real time. The DTMF audio decoder is based on the 'Goertzel Algorithm'.

Freeware - Download PocketPC PHONEDTMFChatŠ 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 )