In NetHack, wearing this ring will cause you to randomly teleport, that is teleport at random times to a random location. You can control the location (but still not when it actually happens) by wearing a ring of teleport control or gaining intrinsic teleport control. Wearing this ring is a risky way to try to escape from danger.

A cursed ring of teleportation causes the symptoms of teleportitis, but this version is easily "curable" by uncursing and removing the ring.

Teleportation caused by the ring causes the wearer to become hungrier with each teleport.