... / 1800MHz public mobile communications network. 2) may call the local telephone, domestic long distance, international long-distance, mobile ... telephony. 3) to provide anti-polarity signal, with the meter, if used in public accounting. 4) standard ... be adaptive. 5) can be set to the local area code, users dial a local call ... keys 10,1 a “Happy Online” button 11, the standard external antenna interface