"device that emits a signal when activated by a telephone call," 1968, agent noun from page (v.1).

A pager is a pocket-sized one-way or two-way radio receiver that sounds a tone or vibrates when it receives a transmission, and displays a numeric and/or alphanumeric message. Some pagers are also cap [..]

A small radio receiver designed to be carried by a person and to give an aural, visual, or tactile indication when activated by the reception of a radio signal containing its specific code. It may also reproduce sounds and/or display messages that were also transmitted. Some pagers also transmit a radio signal acknowledging that a message has been [..]

(n) an electronic device that generates a series of beeps when the person carrying it is being paged

A small radio receiver which beeps to alert the wearer of messages or telephone calls. It displays the telephone number of the caller so the wearer can call back. Some pagers can display very short me [..]

A small pocket-sized one-way or two-way radio receiver that rings and/or vibrates when a transmission is received. Optionally, it can also display a numeric and/or alphanumeric message. Some pagers ar [..]

Conversations is the messaging tool used instead of email to communicate with a course, a group, an individual student, or a group of students.

A wireless telecommunications device that receives text or voice messages. A computer program running in a text terminal, used to view (but not modify) the contents of a text file moving down the [..]