Easier to sell with a voice contact

It has been a great summer with lots of time for my family and our third child that was born in July. As we didn’t have a stroller that suited our new needs I had to sell the one we had and buy us another one.
I used 2 of the biggest sites for classifieds in Sweden, and In both my advertisement I used Freespee numbers, one number for each Ad. Criminals could not track the numbers to our physical address.
The stroller was sold within 7 days and ALL potential buyers contacted me for a voice conversation. I didn’t recieve a single mail. After the deal I paused my Freespee numbers. No more late calls again asking for the stroller 1 week after it was sold. Hence, advertisers that do not invite buyers to place a call dramatically lowers the probability to sell their item.