Adding a CALL TIMER with AutoDial in a Form

[abbottim]

I used the Access 2000 wizard for a contact manager database. A dialer control button is on the Contacts Form to autodial the phone number. I want to add a timer to count from the moment I hit the "OK" on the autodialer subform to the moment I hit "Hang Up", and report the result to the Calls table.

I am new to Access. But this seems like it should be simpler than it looks. Please help. Thanks -- and if you know of any good reference books on Access 2000, please note it (them). Tim