Earlier this year, Samsung announced it would make two-way pagers using technology licensed from Nexus Telecommunication Systems, a small Israeli company.
At the same time, the Motorolans we teamed with were incessantly sending each other short messages on two-way pagers that had developed as an oddity out of their legacy paging business.
This was a time when Motorola owned the nascent mobile phone business, pagers were mostly one-way, and the only uses I could find for wireless data beyond simple messaging were telemetry (look it up) and logistics management for trucking companies.