Sprint Intros First Phones With New CDMA Push-To-Talk Support | TechCrunch
Wireless Bluetooth PTT Walkie Talkie Control Button Adjustable Strap Controller for IOS Android Phone Zello Push-to-Talk Button
Sonim next generation super-tough Push-to-Talk 'BOLT' phones exclusive to Bell | BCE Inc.
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... :
Push to Talk Plus | Verizon
Push-To-Talk Zello PTT 4G 5G Android Smart Intercom Phone IP68 GPS POC Mobile Phone Walkie Talkie| Alibaba.com
Sonim next generation super-tough Push-to-Talk 'BOLT' phones exclusive to Bell
Oem B2b Oinom T18s Push To Talk Ptt Android Rugged Smartphone With Walkie Talkie Sos, Rugged Phone, Ptt Phone, Walkie Talkie Phone - Buy China Wholesale Smartphone $135 | Globalsources.com
New Push To Talk Rugged Like Walkie Talkie Gsm 2g Ptt Power Bank Mobile Phone Torch Feature Phone