... 4) Can be input many kinds of tariff rates, such as rates of international, internal,local, free and forbidden calls5) Signal ... the function of network center manage, tariff ratedownload and phone bill upload 10) Anti-lightning, anti-jamming design and ... With LCD display13) Remote display box for option14) Function of phone bill printing for optionCONDITIONS1) Environment: away from rain, sun, ...