Two way pagers have been a thing since the 90s. You're limited to replying with ... | Hacker News

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		jasonwatkinspdx on Sept 18, 2024 \| parent \| context \| favorite \| on: Hezbollah pager explosions kill several people in ... Two way pagers have been a thing since the 90s. You're limited to replying with a very short alphanumeric message. That said, pagers don't continuously ping the tower like cell phones do. They can stay receive only until the moment you chose to send a message.

BuildTheRobots on Sept 19, 2024 [–]

The AR924's in question are POCSAG pagers; broadcast from base stations and receive only at the pager end. Two way pagers are a thing but use an entirely different protocol for communications.

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