1.   A thin, flat plug fits into the end of the Trumpcard and a regular telephone jack is at the other end.

2.   But they also sell calculators, pens, telephone jacks and electrical plugs equipped with minuscule microphones and transmitters, designed to send a signal to handheld receivers.

3.   Compaq, for instance, could include plug-in cards in its computers that allow users to make an in-home network simply by plugging computers into standard telephone jacks.

4.   External modems are often at risk for a double whammy, as they generally plug into both the telephone jack and an electrical outlet.

5.   It eliminates costly installation of hardwired telephone jacks and the inconvenience of coordinating an installation time with telephone companies.

6.   It is portable so that it can be easily moved to any room with power and a telephone jack.

7.   One plugs into a telephone jack, and the other goes to the cable input on the back of a TV or VCR.

8.   One idea, for example, was something called HomePNA, a system of connecting computers by telephone jacks.

9.   The antennae reorient the signal and allow high-speed bandwidth into the aircraft, which travelers access by plugging their laptops into a telephone jack near their seat.

10.   The box has one set of wires that goes to the TV and another set that plugs into a telephone jack.