It's no accident that Apple chose a yellow icon for its walkie-talkie feature. I dug out my old (2002ish) Nextel with PTT (push to talk). It was all the rage back then... :
TOAN MAGAZINE — Throwback Thursday: Nextel/Boost Mobile Chirp...
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![Nextel i880 No Contract Cell Phone iDEN/GDM Un-locked [i880] - $94.72 : Unlocked Cell Phones, GSM, CDMA and More | ElectronicsForce.com](https://www.electronicsforce.com/images/nexteli880.gif "Nextel i880 No Contract Cell Phone iDEN/GDM Un-locked [i880] - $94.72 : Unlocked Cell Phones, GSM, CDMA and More | ElectronicsForce.com")
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