â–ļī¸đŸ—Ŗī¸âšī¸đŸ‘‚

#push-to-talk #PTT #walkie talkie operation #simplex communication #half-duplex

📞↔ī¸đŸ“Ą

#full-duplex #half-duplex #two-way communication #simultaneous transmission #telecommunications #networking duplex