Contributors in 携帯電話
Mobile phones
専門携帯ラジオ(SMR)
モバイル通信; 携帯電話
Dispatch service ("walkie-talkie-type" service used by taxis, delivery trucks, etc.). SMR providers in the United States operate in the 800 MHz and 900 MHz frequency bands.
Dispatch service ("walkie-talkie-type" service used by taxis, delivery trucks, etc.). SMR providers in the United States operate in the 800 MHz and 900 MHz frequency bands.