Some companies have their own connection kits that give you everything you need to use the Internet anywhere you can get a cellphone signal.

This involves technology that uses cellphone signals and the Global Positioning System to determine where a caller is.

Jammers can also be used to block cellphone signals intended to set off bombs.

All buses have complementary wifi for passengers; available wherever a cellphone signal exists.

Finally, the missing parents, who can't get a cellphone signal, merit the involvement of a search team.

This ingenious feature means, first of all, that your laptop can get online anywhere there's a cellphone signal.

Few residents on the lake and/or areas on Lake George can receive cellphone signals.

One of the villagers climbed into a tree to gain cellphone signal and called the authorities.

There, a cellphone signal was available when we touched down on the runway.

A different approach - by design or happenstance, but altogether legal - is to block cellphone signals through construction techniques.