Grandstream Handytone ATA-486

When I first purchased the ATA-486 it worked fine, aside from the occasional drop-out. However, after about a month, it became obvious that this adapter suffers the same reliability problems as its predecessor, the 386. My advice is to get a proper IP telephone such as the ones offered by Linksys. You'll get much better performance and reliability. In my opinion it's worth the extra money.