🗣️📞📛

#call sign #communication identifier #calling code #user name

📞🔢🏷️

#communication identifier #radio code #call name #comms nickname

📻🗣️🆔

#radio callsign #ham radio #amateur radio #cb radio #communication identifier #station ID

📡🗣️🏷️

#communication identifier #signal name #transmission ID #radio tag #broadcast sign