Service Business Conversion Tracking

Hello everyone, I am looking for advice. I am just getting into affiliate marketing and my first purpose for learning all of this was to get more business for my local service business. I am using ppc to get business and setting up tracking. The question is what is the best way if any to get more data on the conversions. I currently just have my business phone # all over my site and landing pages to make it easy for my customers to just call and schedule, and we ask them how they heard about us which tells us internet. But I don't really know what keyword - ad - page actually got the appointment. I thought of making the number appear on certain pages only or having them click a link to see my phone number, but I don't want to make it hard to find. Any ideas?
Michael Pasquino

I'm not sure how they do it, but some merchants have some unique system in place so that if you send a customer to their site and they call to order, you still get the conversion. Jeremy has mentioned it and maybe he knows more about that system.
One possible way of doing it is by offering a certain coupon code on each LP, but that doesn't help track the keyword level of the conversions.
Here is a product that will do it for you, I don't know the cost. Click Path
I found it on ABW after Googling: merchant phone tracking.
Brian Weaver - Affiliate Marketer in Training
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