best home internet in Ban Kai, Rayong

I am moving to Ban Kai shortly and need fast and reliable internet for VOIP. If you live in Rayong area and have any suggestions on best providers as well as costs, that will be most helpful

We had one DSL company out to the land last month, they tell us we are 50 meters to far from their last box. They wanted us to pay for them to install new box so they could capture more customers on this newly developing land. Is this normal or just normal for Thailand.

Also has any one had luck with using 3g or 4g hotspots as there primary internet.

Reliability, is by far my most important factor, follow by speed. 6gig down and atleast .5 up is required for decent VOIP.

Thanks in advance