The phrase
"free dateline" refers to a service which allows you to make calls or chat with someone without having to pay for the time spent on the call. It means you can communicate with someone for free.
Full definition
❥ Conceição Da Barra mobile social network Chat and play games at Conceição Da
Barra free dateline.
❥ São João Da Boa Vista free mobile chat Super safe chats at São João Da Boa
Vista free dateline.