The routers connect to cellular modems that transmit data to cell phone towers.

So as opposed to a cell phone access card, which is just a dumb cellular modem, and itself cannot be compromised.

However, the first version of the Fire does not have a cellular modem.

Other networking technologies, including packet radio and cellular modems, may give students at home access to school or museum resources.

The data can be stored inside the unit, or sent to a remote computer by radio or cellular modem.

Anyway, the thing about the Kindle that's interesting is that it is also a cellular modem built in.

Some of the latest cards on the market combine 14,400bps fax, data and cellular modems.

Several modem manufacturers see a large new market for cellular modems.

And if the telephone system fails, cellular modems would allow emergency data communications with areas where phones are working, he added.

A 17" laptop with a cellular modem, plus Skype, is going to be way, way higher resolution.