Walkie Talkie Cell Phones
Push-to-talk - the walkie-talkie feature that made Nextel famous - evolved from proprietary handset services to modern PoC and MCPTT solutions that run on smartphones, LTE and 5G.
Walkie Talkie Phones
Push-to-talk (walkie-talkie) phones moved from specialized use to mainstream awareness thanks to Nextel and later evolved into carrier services, apps, and 3GPP-standardized mission-critical solutions.