Lamp fittings are of the screw-type. The system is often overburdened and international calls are expensive. Local calls can be made from public call-boxes, which are located in shops and restaurants and are identifiable by a blue sign outside. Public phones take one peso or 50 and 25 centavos coins or cards. Reduced tariffs apply from 2200-0800.
Most large hotels have facilities.
A cable service to other Latin American countries exists, run by All America Cables Limited. The main post office in Buenos Aires is located in Sarmiento 189 and is open 0900-1930 Monday to Friday. Airmail to Europe takes between five to ten days. Surface mail to Europe takes on average 20-25 days but can take as long as 50 days, so it is advisable to send everything airmail. Internal postal services are subject to delay.