Pager emoji is an old-fashioned device, which was used with the only purpose: to send and receive text messages decades ago (actually, it is less old-fashioned than the device represented by ☎️ Telephone Receiver emoji, which is still used in some cases anyway). It may be used in the context of outdated technologies and 1990-s as an illustration of this very device.
Examples of using
“I even had a pager 20 years ago 📟”
“My old pager is still somewhere here 📟”
How to type