I live in a beachfront condo with very poor signal from One Two call or from Dtac. I have seen big aerials in Isaan that plug into mobiles to boost signals. Are there any smaller versions avaliable or any other way to improve reception?

Same same here.

In our building, the phone company AIS, installed somthing to boost reception.

Works good now.

Ditto for me, so it can be done. Our building installed relays on most floors and now we even get service inside the lifts. It works like a dream for AIS, but I have no experience with any other carrier.

Did you try different places in your condo?

Maybe keeping it near a concrete- pillar with a lot of steel in it would solve your problem?

I know a guy in issan who have to touch a big tamarindtree in front of his house to get a signal...