Does anyone have any experience or notes to share on the effect on posting a phone number, such as a toll free number, on a website? I'm primarily thinking of sales-oriented websites for web-based products, not e-commerce or consulting/services.
I understand that it varies, but if you have anything to share I would appreciate it.
If you can't post exact numbers, percentages of total unique visitors or at least a ratio would be great.
edit: What I am asking is basically how many calls are generated from posting a phone number on a website, i.e. what percentage of website visitors who will call a phone number provided it is available.
If you have a phone number on a site that sells web-based products, it would seem that nearly 100% of the calls would be coming from people who had visited the site (which is what I think you're asking).