How can a business know if it's billboard adverts has produced results?

[King Belieal]

Advertising on billboards is what many businesses do at some point. The challenge with advertising on billboards is that you don't know when it has converted. How do you ascertain that your billboard adverts has converted?

 

[Kera]

If the number of people that called your business number increased for the period of the billboard adverts, it definitely has yielded results.

 

[eLdavis]

I think the best and easiest way to find out this is to ask. Most platforms i join often ask how i found out about them, this is a way for them to find out which method was the most effective one.