Create Conversion Tracking Code to Track Phone Call Durations
Please add a Conversion Tracking type to track call durations as a conversion. Basically you have the call duration info in the Call Forwarding Details. All you would need to do is add another Conversion Tracking type for "Call Duration Conversions" which advertisers could specify a xx sec call = a conversion. That conversion then would be added to the conversion column and figure into the CPA so the Target CPA would then be figured correctly. Without this, the reports will always show 0 conversions on calls that actually converted. The way it is would eventually kill all traffic when using Targeted CPA b/c it would look to your system as if no conversions have occurred.
We tried to post the conversions back using the click ID as suggested in offline conversion tracking articles. However, on direct calls, the user isn't going to the landing page so that click ID will never be tracked.