This Data Logger stores over 2,800 x 10 digit DTMF numbers. Records all buttons pressed during a call. Time and date recorded.

Here is a typical log report(from the developer of the kit)

07-Aug-01 09:01:32,07-Aug-01 09:02:50,2748828821097231880838#02111111#1
07-Aug-01 09:12:07,07-Aug-01 09:14:10,23042250
07-Aug-01 09:37:51,07-Aug-01 09:37:55,
07-Aug-01 09:54:10,07-Aug-01 09:54:28,
07-Aug-01 10:12:55,07-Aug-01 10:13:36,23042250
07-Aug-01 10:27:26,07-Aug-01 10:27:47,
07-Aug-01 10:40:38,07-Aug-01 10:41:18,
07-Aug-01 10:45:51,07-Aug-01 10:46:22,230422501
07-Aug-01 10:49:07,07-Aug-01 10:49:14,88888888

Lines with no numbers pressed are incoming calls. This option can be turned off. The first line is me checking my bank account balances by phone banking. The last line is me opening the door to my apartment building. The 8 digit numbers are local Hong Kong numbers. If I paid for goods over the phone by credit card then all the credit card info would appear in the log.

Requires 9-12V power supply @ 300ma. All components & a plastic chassis are supplied. Telephone hook-up cables not supplied. Read Documentation For Complete Details. Documentation